Portsmouth weather
The forecast for Portsmouth (United Kingdom) for the next 10 days in local time: every 3 hours for the first 6 days, then every 6 hours. See when it will rain, how hard the wind will blow and how warm it will get.
United Kingdom50.8°N, 1.09°WEurope/London (UTC+0)ECMWF: October 25 at 12:00 PM
A real measurement from an airport weather station (NOAA, METAR reports), updated every hour. The forecast next to it comes from a model. NOAA Aviation Weather Center
Next 48 hours (local time)
10-day forecast
- TodayOctober 25Partly cloudy
gusts 42 km/h12°C 12°C - TomorrowOctober 26Rain
4 mm · gusts 59 km/h16°C 12°C - TuesdayOctober 27Rain
6 mm · gusts 66 km/h16°C 12°C - WednesdayOctober 28Mostly clear
gusts 35 km/h15°C 11°C - ThursdayOctober 29Mostly clear
gusts 23 km/h14°C 12°C - FridayOctober 30Cloudy
gusts 19 km/h14°C 12°C - SaturdayOctober 31Cloudy
0.1 mm · gusts 24 km/h14°C 11°C - SundayNovember 1Partly cloudy
gusts 31 km/h11°C 10°C - MondayNovember 2Partly cloudy
0.1 mm · gusts 40 km/h12°C 10°C - TuesdayNovember 3Mostly clear
0.3 mm · gusts 37 km/h11°C 9°C - WednesdayNovember 4Cloudy
gusts 49 km/h11°C 8°C
Over the next 11 days in Portsmouth, temperatures will range from 8°C to 16°C, with 11 mm of rain or snow in total. Days with at least 1 mm of precipitation: 2. ECMWF model run from October 25 at 12:00 PM.
Portsmouth wind forecast for 10 days
Windiest: Tuesday, October 27 - average 32 km/h, gusts up to 66 km/h. Calmest: Sunday, November 1 - average 11 km/h. The wind blows most often from the northeast.
| Day | Wind | Gusts | Direction |
|---|---|---|---|
| Today | 27 km/h | 42 km/h | west |
| Tomorrow | 31 km/h | 59 km/h | southwest |
| Tue, 10/27 | 32 km/h | 66 km/h | southwest |
| Wed, 10/28 | 17 km/h | 35 km/h | west |
| Thu, 10/29 | 13 km/h | 23 km/h | southeast |
| Fri, 10/30 | 16 km/h | 19 km/h | southeast |
| Sat, 10/31 | 12 km/h | 24 km/h | east |
| Sun, 11/1 | 11 km/h | 31 km/h | northeast |
| Mon, 11/2 | 21 km/h | 40 km/h | northeast |
| Tue, 11/3 | 20 km/h | 37 km/h | northeast |
Climate through the year
In October, daytime temperatures here average 15°C and nights 8°C, with about 86 mm of rain over the month. The sea is around 15°C at that time. The warmest month is July (an average of 23°C by day), the coolest is January (7°C by day, 2°C at night). The wettest month is November (about 87 mm) and the driest is September (46 mm). The sea temperature ranges from about 8°C in February to 18°C in August.
| Month | Day | Night | Rain | Sea |
|---|---|---|---|---|
| January | 7°C | 2°C | 79 mm | 9°C |
| February | 8°C | 2°C | 61 mm | 8°C |
| March | 10°C | 3°C | 57 mm | 8°C |
| April | 13°C | 5°C | 48 mm | 9°C |
| May | 17°C | 8°C | 54 mm | 12°C |
| June | 20°C | 11°C | 56 mm | 14°C |
| July | 23°C | 13°C | 58 mm | 17°C |
| August | 22°C | 13°C | 64 mm | 18°C |
| September | 20°C | 11°C | 46 mm | 17°C |
| October | 15°C | 8°C | 86 mm | 15°C |
| November | 11°C | 5°C | 87 mm | 13°C |
| December | 8°C | 3°C | 85 mm | 10°C |
Long-term averages from NASA POWER data (MERRA-2, 2001-2020 reanalysis, CC BY 4.0). Sea temperature is the average water surface temperature at the nearest grid point over the sea. This is climate, not a forecast for a specific day. NASA POWER
The forecast for Portsmouth comes from the ECMWF model and is computed for the point 50.8°N, 1.09°W. Temperature is measured 2 m above the ground, wind at 10 m. Gusts are the strongest bursts of wind within each 3-hour period.
Source: ECMWF IFS model (CC BY 4.0), data modified. A forecast is a model result, not a measurement. ECMWF
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