News
More extreme weather events with planetary warming
As the planet warms, the intensity, frequency and duration of extreme weather events such as heatwaves and heavy rainfall is expected to increase.
Read morePortsmouth (Portsmouth) weather
Find a forecast
Forecast days
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Today. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius. Overcast. Sunrise: 04:58; Sunset: 21:19. UV: Moderate; Pollution: Low; Pollen: High.
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Sunday 5 July. Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Overcast changing to sunny intervals by late morning. Sunrise: 04:59; Sunset: 21:19. UV: High; Pollution: Low; Pollen: High.
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Monday 6 July. Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius. Sunny changing to cloudy by lunchtime. Sunrise: 05:00; Sunset: 21:18. UV: High; Pollution: Low; Pollen: High.
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Tuesday 7 July. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Sunny changing to cloudy by lunchtime. Sunrise: 05:01; Sunset: 21:18. UV: High; Pollution: Low; Pollen: High.
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Wednesday 8 July. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Sunny intervals changing to cloudy by late morning. Sunrise: 05:01; Sunset: 21:17. UV: High; Pollution: Low; Pollen: High.
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Thursday 9 July. Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Cloudy changing to sunny intervals by lunchtime. Sunrise: 05:02; Sunset: 21:16. UV: High;
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Friday 10 July. Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Sunny. Sunrise: 05:03; Sunset: 21:16. UV: High;
Seven day forecast for Portsmouth
Today (4 July 2020)
| Time | Now | 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 | 20% | 20% | 30% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% |
| Temperature (°C) |
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
| Feels like temperature (°C) | 13° | 12° | 12° | 13° | 13° | 13° | 13° | 13° | 14° | 14° | 14° | 14° | 14° | 14° | 14° | 14° | 13° | 13° |
| Wind direction and speed (miles per hour) |
SW
18
|
SW
19
|
SW
20
|
SW
18
|
SW
19
|
SW
19
|
SW
19
|
WSW
19
|
WSW
18
|
WSW
18
|
WSW
18
|
WSW
18
|
WSW
18
|
WSW
17
|
WSW
17
|
WSW
17
|
WSW
17
|
WSW
18
|
| Wind gust (miles per hour) | 31 | 33 | 33 | 30 | 31 | 31 | 32 | 32 | 31 | 31 | 30 | 30 | 30 | 29 | 28 | 28 | 29 | 31 |
| Visibility | M | M | M | M | M | M | M | M | G | G | G | G | G | G | G | G | G | G |
| Humidity | 99% | 99% | 98% | 97% | 97% | 97% | 96% | 96% | 95% | 93% | 90% | 90% | 91% | 93% | 95% | 95% | 95% | 94% |
| UV | 1 | 1 | 1 | 2 | 3 | 3 | 4 | 5 | 4 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | - | - |
Sunday (5 July 2020)
| 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 | 10% | 10% | 10% | 10% | 10% | 20% | 20% | 20% | 10% | 10% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
18°
|
19°
|
19°
|
20°
|
20°
|
20°
|
19°
|
19°
|
18°
|
18°
|
17°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 14° | 14° | 14° | 15° | 15° | 15° | 14° | 14° | 14° | 14° | 13° | 13° | 12° | 12° | 11° |
| Wind direction and speed (miles per hour) |
WSW
18
|
WSW
19
|
WSW
20
|
WSW
18
|
WSW
21
|
SW
21
|
WSW
22
|
WSW
20
|
WSW
20
|
WSW
21
|
WSW
21
|
WSW
19
|
WSW
19
|
WSW
20
|
WSW
20
|
WSW
21
|
WSW
22
|
WSW
20
|
WSW
20
|
W
20
|
W
19
|
W
19
|
W
18
|
W
18
|
| Wind gust (miles per hour) | 31 | 32 | 34 | 32 | 36 | 36 | 38 | 36 | 35 | 35 | 36 | 33 | 32 | 33 | 33 | 35 | 36 | 34 | 32 | 33 | 33 | 31 | 31 | 30 |
| Visibility | VG | VG | G | G | G | G | G | G | G | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | E | E | E |
| Humidity | 93% | 93% | 94% | 95% | 96% | 94% | 95% | 94% | 90% | 82% | 67% | 60% | 55% | 53% | 50% | 49% | 55% | 56% | 56% | 54% | 53% | 55% | 59% | 64% |
| UV | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 6 | 6 | 5 | 3 | 2 | 1 | 1 | 1 | - | - |
Monday (6 July 2020)
| 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 | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
14°
|
13°
|
13°
|
13°
|
17°
|
19°
|
20°
|
19°
|
16°
|
| Feels like temperature (°C) | 11° | 10° | 10° | 11° | 13° | 15° | 16° | 16° | 14° |
| Wind direction and speed (miles per hour) |
W
16
|
W
16
|
W
16
|
WNW
14
|
WNW
16
|
WNW
15
|
WNW
15
|
WNW
13
|
WNW
10
|
| Wind gust (miles per hour) | 28 | 28 | 27 | 24 | 28 | 28 | 26 | 21 | 15 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 68% | 72% | 78% | 74% | 56% | 46% | 44% | 50% | 64% |
| UV | - | - | - | 1 | 5 | 7 | 4 | 1 | - |
Tuesday (7 July 2020)
| 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 | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
13°
|
11°
|
12°
|
17°
|
18°
|
18°
|
17°
|
15°
|
| Feels like temperature (°C) | 12° | 10° | 12° | 16° | 16° | 15° | 15° | 14° |
| Wind direction and speed (miles per hour) |
NW
9
|
NNW
7
|
NNW
6
|
WNW
5
|
WSW
9
|
WSW
12
|
WSW
13
|
WSW
11
|
| Wind gust (miles per hour) | 13 | 11 | 10 | 12 | 19 | 22 | 21 | 17 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 76% | 83% | 78% | 56% | 51% | 53% | 60% | 77% |
| UV | - | - | 1 | 5 | 7 | 4 | 1 | - |
Wednesday (8 July 2020)
| 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% | 10% | <5% | <5% | <5% | <5% |
| Temperature (°C) |
14°
|
13°
|
15°
|
17°
|
18°
|
18°
|
17°
|
16°
|
| Feels like temperature (°C) | 13° | 12° | 13° | 14° | 15° | 15° | 15° | 14° |
| Wind direction and speed (miles per hour) |
W
9
|
W
9
|
W
10
|
WSW
13
|
WSW
15
|
WSW
15
|
WSW
14
|
WSW
12
|
| Wind gust (miles per hour) | 15 | 14 | 17 | 24 | 27 | 27 | 23 | 19 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 84% | 88% | 81% | 67% | 63% | 65% | 71% | 83% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
Thursday (9 July 2020)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% |
| Temperature (°C) |
15°
|
14°
|
15°
|
17°
|
18°
|
18°
|
17°
|
16°
|
| Feels like temperature (°C) | 13° | 13° | 13° | 15° | 16° | 15° | 15° | 14° |
| Wind direction and speed (miles per hour) |
NNW
11
|
N
11
|
WNW
11
|
WNW
11
|
SW
12
|
SW
13
|
WSW
13
|
WSW
11
|
| Wind gust (miles per hour) | 17 | 17 | 17 | 20 | 23 | 24 | 22 | 19 |
| Visibility | G | G | G | VG | VG | VG | VG | G |
| Humidity | 88% | 90% | 86% | 74% | 67% | 68% | 75% | 84% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
Friday (10 July 2020)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 10% | 10% | 10% | 10% | 10% | 10% | <5% |
| Temperature (°C) |
15°
|
14°
|
14°
|
17°
|
18°
|
18°
|
18°
|
16°
|
| Feels like temperature (°C) | 13° | 12° | 13° | 15° | 16° | 15° | 15° | 14° |
| Wind direction and speed (miles per hour) |
WNW
10
|
WNW
10
|
WNW
11
|
WNW
11
|
W
12
|
WSW
13
|
W
13
|
WNW
11
|
| Wind gust (miles per hour) | 17 | 17 | 18 | 21 | 24 | 24 | 22 | 18 |
| Visibility | G | G | VG | VG | VG | VG | VG | VG |
| Humidity | 87% | 87% | 84% | 71% | 61% | 58% | 61% | 71% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
WARNING
Flood warnings
Flood warnings in force
for England.
London & South East England weather forecast
Headline:
Cloudy with outbreaks of rain and drizzle.
Today:
Mostly cloudy and increasingly humid with outbreaks of light rain and drizzle. However, some areas may remain dry with perhaps a few bright spells developing later, especially in the north and east. Becoming windy along the south coast. Maximum temperature 20 °C.
Tonight:
Cloudy and largely dry this evening. Overnight becoming windy with outbreaks of mostly light rain arriving from the west, with gales developing along the south coast. Mild and humid. Minimum temperature 14 °C.
Sunday:
Cloudy and patchy rain soon clears east, then windy with sunny spells and perhaps a few showers, these most likely in the west. Highest temperatures for eastern Kent. Maximum temperature 24 °C.
Outlook for Monday to Wednesday:
Mostly dry and bright with isolated showers through Monday as winds ease. Tuesday light winds, bright or sunny spells. Wednesday probably dry but becoming cloudy. Temperatures generally near normal.
Updated:
UK long range weather forecast
Remaining largely settled across most southern and southeastern parts on Wednesday with a good deal of warm sunny spells. Further north, there is an increasing chance of some rain arriving throughout the day, perhaps with strong winds. Looking further ahead, a continuation of the north/south split seems most likely. Northern and northwestern areas are expected to see further spells of rain, accompanied by strong winds, these possibily spreading to some other areas at times. Further south, there should be more in the way of dry weather, though even here, the possibility of some rain or showers still exists. Temperatures are likely to be below average for most northern areas, though hovering near or locally above in the south.
Updated:
Although confidence remains low throughout this period, the preferred scenario favours a more settled regime. There should be plenty of dry, fine weather around, though there is still the risk of occasional bouts of rain and strong winds. Such spells are mostly likely across the north and west, but they could spread to other areas at times. Temperatures generally around average or slightly below, with any periods of particularly warm weather being short-lived.
Updated:
