San Antonio (United States of America) weather
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Forecast days
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Today. Maximum daytime temperature: 28 degrees Celsius; Minimum nighttime temperature: 19 degrees Celsius. Cloudy changing to sunny intervals in the afternoon. Sunrise: ; Sunset: . UV: Very high;Today. Maximum daytime temperature: 28 degrees Celsius; Minimum nighttime temperature: 19 degrees Celsius. Cloudy changing to sunny intervals in the afternoon. Sunrise: ; Sunset: . UV: Very high;
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Saturday 20 April. Maximum daytime temperature: 25 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Cloudy changing to light showers by lunchtime. Sunrise: ; Sunset: . UV: High;Saturday 20 April. Maximum daytime temperature: 25 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Cloudy changing to light showers by lunchtime. Sunrise: ; Sunset: . UV: High;
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Sunday 21 April. Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius. Overcast changing to sunny intervals by lunchtime. Sunrise: ; Sunset: . UV: Very high;Sunday 21 April. Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius. Overcast changing to sunny intervals by lunchtime. Sunrise: ; Sunset: . UV: Very high;
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Monday 22 April. Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Partly cloudy changing to sunny by late morning. Sunrise: ; Sunset: . UV: Extreme;Monday 22 April. Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Partly cloudy changing to sunny by late morning. Sunrise: ; Sunset: . UV: Extreme;
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Tuesday 23 April. Maximum daytime temperature: 25 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius. Clear changing to cloudy by lunchtime. Sunrise: ; Sunset: . UV: Very high;Tuesday 23 April. Maximum daytime temperature: 25 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius. Clear changing to cloudy by lunchtime. Sunrise: ; Sunset: . UV: Very high;
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Wednesday 24 April. Maximum daytime temperature: 27 degrees Celsius; Minimum nighttime temperature: 19 degrees Celsius. Light rain changing to overcast by lunchtime. Sunrise: ; Sunset: . UV: Very high;Wednesday 24 April. Maximum daytime temperature: 27 degrees Celsius; Minimum nighttime temperature: 19 degrees Celsius. Light rain changing to overcast by lunchtime. Sunrise: ; Sunset: . UV: Very high;
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Thursday 25 April. Maximum daytime temperature: 29 degrees Celsius; Minimum nighttime temperature: 21 degrees Celsius. Light rain changing to cloudy in the afternoon. Sunrise: ; Sunset: . UV: Very high;Thursday 25 April. Maximum daytime temperature: 29 degrees Celsius; Minimum nighttime temperature: 21 degrees Celsius. Light rain changing to cloudy in the afternoon. Sunrise: ; Sunset: . UV: Very high;
Seven day forecast for San Antonio
| Time | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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10% | <5% | <5% | <5% | 10% | 10% | 10% | 10% | 10% | 10% |
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26°
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27°
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27°
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27°
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26°
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26°
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25°
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24°
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23°
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23°
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25° | 26° | 27° | 26° | 26° | 25° | 24° | 23° | 22° | 22° |
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NE
13
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ENE
13
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ENE
13
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ENE
13
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ENE
14
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ENE
15
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ENE
13
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ENE
12
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ENE
10
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ENE
10
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26 | 26 | 26 | 27 | 27 | 28 | 26 | 24 | 21 | 21 |
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VG | VG | VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
|
59% | 56% | 53% | 55% | 56% | 58% | 62% | 66% | 70% | 73% |
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UV
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8 | 7 | 5 | 4 | 2 | 1 | - | - | - | - |
| Time | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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10% | 10% | 10% | 20% | 20% | 20% | 10% | 10% | 10% | 10% | 10% | 10% | 40% | 40% | 40% | 60% | 60% | 60% | 70% | 70% | 70% |
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22°
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22°
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22°
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21°
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21°
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21°
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21°
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21°
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21°
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22°
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23°
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23°
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24°
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24°
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24°
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24°
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24°
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23°
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22°
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21°
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19°
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22° | 21° | 22° | 22° | 22° | 22° | 21° | 21° | 22° | 22° | 23° | 24° | 24° | 25° | 25° | 25° | 25° | 24° | 22° | 21° | 17° |
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ENE
10
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E
9
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E
8
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E
7
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E
6
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E
6
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E
7
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E
7
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E
8
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E
9
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E
10
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E
10
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E
10
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E
10
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E
10
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ESE
10
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ESE
11
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E
11
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ENE
12
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NE
13
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NNE
14
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20 | 19 | 17 | 14 | 12 | 12 | 13 | 13 | 15 | 17 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 27 |
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G | G | G | G | G | G | G | G | G | G | G | G | G | G | G | G | G | G | G | M | G |
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Humidity
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77% | 81% | 84% | 88% | 91% | 92% | 92% | 93% | 91% | 88% | 86% | 84% | 81% | 79% | 79% | 78% | 77% | 81% | 85% | 100% | 89% |
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UV
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- | - | - | - | - | - | - | - | 1 | 2 | 3 | 4 | 5 | 7 | 5 | 4 | 2 | 2 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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50% | 20% | 10% | 10% | <5% | <5% | <5% | <5% |
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17°
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15°
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13°
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16°
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19°
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20°
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19°
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16°
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15° | 13° | 11° | 13° | 15° | 17° | 16° | 15° |
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NNE
13
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NNE
13
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NNE
15
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NNE
18
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NNE
16
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NNE
15
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NE
15
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NE
9
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27 | 27 | 30 | 34 | 33 | 31 | 28 | 18 |
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G | G | VG | VG | VG | VG | VG | VG |
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Humidity
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87% | 84% | 80% | 70% | 57% | 50% | 51% | 59% |
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UV
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- | - | - | 4 | 10 | 5 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
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15°
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13°
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12°
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16°
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19°
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21°
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20°
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17°
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13° | 11° | 10° | 15° | 17° | 19° | 19° | 16° |
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NE
7
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NNE
7
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NNE
7
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ENE
11
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E
9
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ESE
9
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SE
10
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SE
6
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14 | 13 | 12 | 21 | 21 | 21 | 19 | 14 |
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VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
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63% | 65% | 68% | 53% | 43% | 41% | 44% | 60% |
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UV
|
- | - | - | 5 | 11 | 6 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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<5% | <5% | <5% | <5% | 10% | 10% | <5% | <5% |
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15°
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13°
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13°
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18°
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22°
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24°
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24°
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21°
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14° | 13° | 12° | 18° | 21° | 23° | 23° | 20° |
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SSE
7
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SSE
5
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SE
5
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SSE
8
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S
10
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SSE
11
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SSE
12
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SSE
10
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15 | 10 | 8 | 16 | 22 | 23 | 22 | 18 |
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VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
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71% | 82% | 88% | 76% | 59% | 54% | 58% | 73% |
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UV
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- | - | - | 5 | 8 | 5 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
|
<5% | 10% | 50% | 50% | 20% | 20% | 10% | <5% |
|
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19°
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18°
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18°
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21°
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24°
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27°
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26°
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23°
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19° | 18° | 19° | 21° | 24° | 26° | 26° | 22° |
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SSE
8
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SSE
6
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SE
6
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SE
9
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SE
10
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SE
12
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SE
14
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SE
12
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16 | 12 | 11 | 16 | 21 | 23 | 25 | 23 |
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VG | G | G | G | G | VG | VG | VG |
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Humidity
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85% | 93% | 96% | 90% | 73% | 59% | 62% | 77% |
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UV
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- | - | - | 3 | 8 | 4 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 |
|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
|
10% | 20% | 50% | 50% | 40% | 10% |
|
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21°
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20°
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20°
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23°
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26°
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28°
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21° | 21° | 21° | 23° | 26° | 28° |
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SE
9
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SSE
8
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SSE
7
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SSE
11
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SSE
12
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SSE
13
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18 | 15 | 14 | 20 | 24 | 27 |
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G | G | M | G | VG | VG |
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Humidity
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89% | 93% | 95% | 89% | 70% | 57% |
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UV
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- | - | - | 3 | 8 | 5 |
Our weather symbols tell you the weather conditions for any given hour in the day or night. This means that the symbol for 9am shows you what you will see from 9am to 10am.
Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail or drizzle) will fall from the sky at a certain time.
This number shows the air temperature for the time period. You can see the temperature in Celsius or Fahrenheit by using the dropdown menu.
Feels like temperature considers other factors, such as wind speed and humidity. This gives you a better idea of how the temperature will actually feel at the time.
Wind gust shows the highest wind speed that you should encounter at that time, as winds peak and lull.
Strong winds are shown in bold for speeds of 29 mph or more.
The arrow shows the direction the wind is blowing. The letters show the direction the wind is blowing from (on a standard 16-point compass).
The number represents the average wind speed expected at that time.
The arrow shows the direction of the wind (up is north). If the arrow points from land to sea, the wind will be blowing out to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks. These winds can blow you out to sea. Read more about how wind will affect you at the beach.
Visibility measures the distance at which an object can be clearly seen.
| VP (Very Poor) | Less than 1 km |
| P (Poor) | 1.1 km to 4 km |
| M (Moderate) | 4.1 km to 10 km |
| G (Good) | 10.1 km to 20 km |
| VG (Very Good) | 20.1 km to 40 km |
| E (Excellent) | Greater than 40 km |
Humidity is the amount of water vapor in the air. If there is a lot of water vapour, the humidity will be high. The higher the percentage of humidity, the wetter it will feel outside.
UV exposure index and the protection required to help keep you safe:
No risk of UV - It’s safe to stay outside. Low - You can safely stay outside. Consider sunscreen in direct sunlight. Moderate - Take care during midday hours and do not spend too much time in the sun unprotected. Sunscreen advised. High - Seek shade during midday hours, cover up and wear sunscreen. Very high - Spend time in the shade between 11am and 3pm. Shirt, sunscreen and hat are essential. Extreme - Avoid being outside during midday hours. Shirt, sunscreen and hat essential.
This is the average height of the waves, 1-2 miles out to sea. The height of the waves can vary. The individual waves out to sea or at the beach can be higher than this number. If you are close to the water, keep an eye on the waves to stop you or your belongings being swept away.
Read more about calculating the expected height of the waves at the beach.
This is the average number of seconds between one wave and the next, 1-2 miles out to sea. A long wave period (more than 10 seconds) means the waves at the beach may be more powerful. Lifeguards can give you advice on waves if you’re planning to go into the water.
Read more about the period of waves.
The arrow shows the average direction of the waves 1-2 miles out to sea. It indicates how sheltered the beach will be from these waves. If the arrow points towards land, most of the waves’ power will reach the beach. If the arrow is parallel to or pointing away from land, the wave height is likely to be lower on the beach than it is offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.