Porthmadog (Gwynedd) weather
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Forecast days
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Today. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Cloudy changing to light showers by lunchtime. Sunrise: 05:39; Sunset: 21:06. UV: High; Pollution: Low; Pollen: High.
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Tuesday 4 August. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius. Cloudy changing to light rain by lunchtime. Sunrise: 05:40; Sunset: 21:04. UV: Moderate; Pollution: Low; Pollen: High.
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Wednesday 5 August. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius. Heavy rain changing to overcast by lunchtime. Sunrise: 05:42; Sunset: 21:02. UV: Moderate; Pollution: Low; Pollen: Moderate.
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Thursday 6 August. Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius. Light showers changing to cloudy by lunchtime. Sunrise: 05:44; Sunset: 21:00. UV: Moderate; Pollution: Low; Pollen: High.
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Friday 7 August. Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius. Cloudy changing to sunny intervals by late morning. Sunrise: 05:45; Sunset: 20:58. UV: Moderate; Pollution: Low; Pollen: High.
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Saturday 8 August. Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Fog changing to sunny intervals by late morning. Sunrise: 05:47; Sunset: 20:56. UV: High;
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Sunday 9 August. Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Sunny. Sunrise: 05:49; Sunset: 20:54. UV: High;
Seven day forecast for Porthmadog
| Time | Now | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 10% | 30% | 10% | 40% | 30% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
17°
|
16°
|
16°
|
15°
|
13°
|
13°
|
12°
|
| Feels like temperature (°C) | 13° | 14° | 14° | 14° | 15° | 15° | 15° | 15° | 15° | 14° | 13° | 12° | 12° |
| Wind direction and speed (miles per hour) |
NW
12
|
NW
8
|
NW
8
|
WNW
8
|
N
7
|
SW
7
|
WNW
8
|
WNW
7
|
WNW
6
|
W
5
|
W
6
|
W
5
|
ESE
3
|
| Wind gust (miles per hour) | 16 | 11 | 13 | 12 | 10 | 10 | 11 | 11 | 9 | 9 | 11 | 9 | 7 |
| Visibility | E | E | E | M | VG | E | E | E | E | VG | VG | VG | VG |
| Humidity | 74% | 74% | 74% | 75% | 74% | 67% | 58% | 59% | 64% | 74% | 80% | 84% | 85% |
| UV | 4 | 5 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 1 | 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 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | <5% | <5% | <5% | <5% | 10% | 10% | 10% | 10% | 20% | 20% | 20% | 20% | 20% | 60% | 60% | 50% | 20% | 50% | 20% | 20% | 20% | 20% | 20% | 20% |
| Temperature (°C) |
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
| Feels like temperature (°C) | 12° | 12° | 13° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° | 12° |
| Wind direction and speed (miles per hour) |
SSE
5
|
SE
6
|
SE
6
|
SSE
8
|
S
13
|
S
13
|
SSW
14
|
SSW
16
|
SSW
17
|
SSW
18
|
SSW
20
|
SSW
20
|
SSW
21
|
SSW
20
|
SSW
22
|
SSW
24
|
SSW
25
|
SSW
25
|
SSW
25
|
SSW
24
|
SSW
24
|
SSW
24
|
SSW
24
|
SSW
24
|
| Wind gust (miles per hour) | 8 | 10 | 10 | 13 | 19 | 21 | 23 | 25 | 28 | 29 | 32 | 33 | 34 | 34 | 37 | 40 | 41 | 41 | 41 | 40 | 40 | 40 | 39 | 39 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | G | G | G | G | G | G | G | G | G | G | G | G |
| Humidity | 84% | 85% | 86% | 86% | 87% | 87% | 87% | 85% | 82% | 83% | 80% | 80% | 80% | 82% | 84% | 85% | 86% | 89% | 91% | 92% | 92% | 92% | 92% | 92% |
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | - | - | - |
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 50% | 60% | 80% | 90% | 60% | 60% | 50% | 40% | 40% |
| Temperature (°C) |
17°
|
17°
|
16°
|
17°
|
17°
|
18°
|
18°
|
17°
|
17°
|
| Feels like temperature (°C) | 12° | 12° | 12° | 13° | 13° | 14° | 14° | 14° | 14° |
| Wind direction and speed (miles per hour) |
SSW
24
|
SSW
24
|
SSW
23
|
SSW
22
|
SSW
22
|
SSW
21
|
SSW
20
|
SSW
17
|
SSW
15
|
| Wind gust (miles per hour) | 39 | 39 | 38 | 37 | 36 | 36 | 34 | 29 | 25 |
| Visibility | G | M | M | M | M | G | M | G | G |
| Humidity | 91% | 92% | 94% | 93% | 91% | 86% | 88% | 89% | 93% |
| UV | - | - | - | 1 | 2 | 4 | 3 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 50% | 20% | 30% | 40% | 10% | 10% | 10% | 10% |
| Temperature (°C) |
16°
|
16°
|
16°
|
17°
|
18°
|
18°
|
18°
|
17°
|
| Feels like temperature (°C) | 14° | 15° | 15° | 15° | 16° | 17° | 17° | 16° |
| Wind direction and speed (miles per hour) |
SSW
13
|
SSW
11
|
S
12
|
S
13
|
SSW
13
|
SSW
11
|
SSW
11
|
S
10
|
| Wind gust (miles per hour) | 22 | 19 | 20 | 24 | 24 | 22 | 19 | 16 |
| Visibility | G | G | G | G | VG | VG | VG | G |
| Humidity | 94% | 96% | 95% | 88% | 81% | 84% | 86% | 92% |
| UV | - | - | 1 | 3 | 5 | 3 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 20% | 10% | 10% | <5% | 10% | <5% | 10% |
| Temperature (°C) |
17°
|
17°
|
17°
|
18°
|
20°
|
20°
|
19°
|
17°
|
| Feels like temperature (°C) | 16° | 15° | 16° | 18° | 19° | 20° | 19° | 17° |
| Wind direction and speed (miles per hour) |
S
10
|
S
10
|
S
8
|
SSW
8
|
SSW
8
|
SSW
7
|
SW
8
|
SW
7
|
| Wind gust (miles per hour) | 16 | 16 | 13 | 16 | 17 | 15 | 14 | 11 |
| Visibility | G | G | G | VG | VG | G | G | M |
| Humidity | 94% | 94% | 94% | 86% | 76% | 79% | 88% | 95% |
| UV | - | - | 1 | 3 | 5 | 3 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 30% | 20% | 10% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
16°
|
16°
|
16°
|
18°
|
19°
|
19°
|
18°
|
15°
|
| Feels like temperature (°C) | 16° | 16° | 16° | 18° | 18° | 18° | 17° | 14° |
| Wind direction and speed (miles per hour) |
SW
7
|
SW
7
|
WNW
5
|
WNW
6
|
NW
10
|
NNW
10
|
NNW
9
|
N
7
|
| Wind gust (miles per hour) | 12 | 10 | 8 | 12 | 19 | 19 | 16 | 11 |
| Visibility | M | M | VP | VG | VG | VG | VG | VG |
| Humidity | 97% | 97% | 96% | 88% | 80% | 76% | 77% | 89% |
| UV | - | - | 1 | 3 | 6 | 4 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | <5% | <5% | <5% | <5% | <5% | <5% | 10% | <5% |
| Temperature (°C) |
14°
|
14°
|
15°
|
18°
|
21°
|
22°
|
21°
|
18°
|
| Feels like temperature (°C) | 13° | 14° | 14° | 18° | 20° | 21° | 20° | 17° |
| Wind direction and speed (miles per hour) |
NNE
7
|
NNE
7
|
NE
8
|
NE
8
|
NE
9
|
NE
10
|
NE
9
|
NE
8
|
| Wind gust (miles per hour) | 10 | 11 | 12 | 15 | 17 | 18 | 16 | 12 |
| Visibility | VG | G | G | VG | VG | VG | VG | VG |
| Humidity | 92% | 93% | 92% | 81% | 72% | 71% | 75% | 84% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
Wales weather forecast
Headline:
Sunny spells and showers today. Drier later with evening sunshine.
Today:
A largely dry and bright start for many but with cloud bubbling up through the morning with the chance of a shower also. The showers easing later in the afternoon with some good spells of sunshine developing. Maximum temperature 19 °C.
Tonight:
A dry evening with late sunshine for many and a little patchy cloud. Cloud will build overnight with the chance of rain in some western parts later. Fog patches possible. Minimum temperature 6 °C.
Tuesday:
A rather cloudy day with brighter spells and some outbreaks of rain, although these mainly in northerwestern areas then more extensively across the west later. Winds strengthening with coastal gales. Maximum temperature 19 °C.
Outlook for Wednesday to Friday:
Rather wet and windy on Wednesday. The odd outbreak of rain possible Thursday and Friday although largely drier with winds easing and some sunshine, especially on Friday. Turning warmer.
Updated:
UK long range weather forecast
There are increasing signs that many parts will become drier, brighter and very warm to start the period with the warmest and driest weather focused across the southeast of the UK. However, northwestern parts will probably stay more unsettled with further rain at times. Somewhat cooler conditions may follow from the west over the weekend, perhaps preceded by showers or thunderstorms. For the following week, a fair amount of dry, bright warm weather looks likely for much of the UK with the possibility of some further very warm weather, especially in the southeast. There may well be more changeable, breezy interludes with some rain or showers, more especially for northwestern areas where temperatures will be generally nearer normal.
Updated:
This period is likely to see a mixture of dry and settled conditions, interspersed with occasional bouts of wetter and windier weather. The majority of the unsettled weather seems more likely to be in the northwest, with the south and southeast seeing the driest conditions. Temperatures will probably be around or slightly above the average for this time of year. There may be further short lived very warm spells, these more likely across the south or southeast. There are some tentative signs that conditions could become more widely dry and settled across the UK towards the end of the month.
Updated:
