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Weather on Saturday in Portsmouth

Sat 19 Sep
19° 15°
Sunny
Chance of rain: 36% · Rain: 0.5 mm · Wind: 26 mph · UV: 5
Full 14-day forecast →
Portsmouth · Hampshire · Monday 14 September
20°
Sunny
Feels like 18°  ·  Min 19° / Max 21°
0.8 mm 15 mph SW 81% DAQI 1 · Low 1022 mb
Min
19°
Max
21°
Rain
0.8 mm
Sunrise
06:38
Sunset
19:21
Day length
12h 43m
UV index
5
Wind15 mph SW
Gusts19 mph
Pressure1022 mb
Humidity81%
Dew point17°
Visibility6 mi
Now
20°
10%
15 mph
18:00
20°
10%
15 mph
19:00
19°
12%
14 mph
20:00
19°
13%
13 mph
21:00
19°
13%
12 mph
22:00
19°
13%
12 mph
23:00
19°
14%
11 mph
00:00
19°
17%
11 mph
01:00
19°
15%
11 mph
02:00
19°
18%
11 mph
03:00
19°
14%
10 mph
04:00
18°
14%
10 mph
05:00
18°
18%
10 mph
06:00
18°
30%
11 mph
07:00
18°
29%
13 mph
08:00
19°
27%
14 mph
09:00
19°
24%
16 mph
10:00
19°
22%
17 mph
11:00
19°
35%
18 mph
12:00
19°
22%
16 mph
13:00
18°
16%
16 mph
14:00
20°
4%
12 mph
15:00
21°
2%
17 mph
16:00
21°
2%
21 mph

48-hour forecast

Portsmouth · temperature + rainfall

14-day forecast

Updated 17:39

Conditions & indices

Wind
15 mph SW
Gusts 19 mph
Humidity
81%
Dew point 17°
Pressure
1022 mb
Rising
UV index
5 — Moderate
Max today
Air quality
Low
DAQI 1 / 10
Pollen
Low levels
Mugwort
Visibility
6 mi
Good visibility

🗺️ Portsmouth and what is nearby

Forecast day by day — press play
Nearby: Cowes21°16 km Sandown21°19 km Chichester21°22 km Hythe23°22 km Bordon21°36 km New Milton22°41 km Basingstoke25°49 km Worthing20°50 km Andover19°52 km Godalming21°52 km Aldershot20°53 km Salisbury25°57 km
Markers show the daytime high for the selected day. Tap a marker for Portsmouth detail; two fingers to move and zoom the map.
Pollen — Portsmouth

🌿 Pollen count right now

See all →
Grass
None
Birch
None
Alder
None
Mugwort
Moderate
Olive
None
Ragweed
None

Sun & moon

Sunrise06:38
Sunset19:21
Day length12h 43m
Moonrise10:57
Moonset20:06
Moon phase🌔 Waxing Crescent
Latitude50.8198°N
Longitude-1.0880°E

Sea temperatures nearby

See all →
West Wittering (14km)19°
Bognor Regis (29km)19°
Bournemouth Beach (56km)18°
Sandbanks, Poole (61km)18°
Studland Bay (64km)17°
Swanage (65km)17°
🌤️Dry over the next 90 minutes
Now+30+60+90 min
Rain minute by minute · UKV nowcast

Today’s index

derived from today’s forecast
Drying weather
Poor
Hang the washing out
BBQ weather
Poor
Barbecue outdoors
Running weather
Poor
Go for a run
Beer garden
OK
Drinks outside
Other places in the same county / region
Southampton
Sunny
25°

Compare forecasts

WeatherRadar · Met Office model · Yr — high / low per day
Day WeatherRadarYr Spread
Tue 15 Sep 21° 15° 21° 15° 0.1°
Wed 16 Sep 18° 13° 20° 13° 1.7°
Thu 17 Sep 19° 14° 19° 14° 0.4°
Fri 18 Sep 18° 12° 18° 13° 0.2°
Sat 19 Sep 19° 15° 18° 18° 0.7°
A small spread = the sources agree (high confidence). A large spread = more uncertainty. Yr = MET Norway, Met Office model = UKV via Open-Meteo, WeatherRadar = our own blend.
Sources · Monday 14 September
Weather data for Portsmouth from official sources
The forecast is compiled from global weather models (14-day forecast, UV, air quality, pollen and warnings) together with the UK Met Office UKV model. Data updates every hour, warnings every 15 minutes. Lat 50.8198°N, lon -1.0880°E.
UKV + global weather models
Updated: 17:39
Forecasts from the UK Met Office UKV model, global weather models and official UK environmental data · Met Office UKV model · Environment Agency · Copernicus CAMS · NOAA
Updated: 17:39