Weather Forecast for Portsmouth
Hampshire, United Kingdom
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Current Weather - Portsmouth: 19°C
Current Weather - Portsmouth: 19°C
Hampshire, United Kingdom
Patchy rain nearby
Feels like 17°C
Wind
28 km/h WSW
Humidity
92%
Pressure
1018 mb
UV Index
0
Visibility
10 km
Patchy rain nearby
Thursday, September 03, 2026
High
21°C
Low
19°C
Rain Chance
55%
Hourly Forecast
20°C
20°C
21°C
21°C
21°C
21°C
21°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
41 km/h
Humidity
89%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
55%
Snow Chance
0%
Sun & Moon
Sunrise
06:21 AM
Sunset
07:45 PM
Moonrise
09:40 PM
Moonset
02:01 PM
Moon Phase
Last Quarter
Moon Illumination
50%
Air Quality
PM2.5
4.4
μg/m³
PM10
9.6
μg/m³
NO₂
6.8
μg/m³
O₃
46.5
μg/m³
SO₂
0.9
μg/m³
CO
116.3
μg/m³
Overcast
Friday, September 04, 2026
High
21°C
Low
16°C
Rain Chance
61%
Hourly Forecast
20°C
20°C
20°C
19°C
20°C
19°C
19°C
20°C
20°C
20°C
20°C
20°C
19°C
18°C
20°C
20°C
21°C
20°C
20°C
19°C
18°C
17°C
16°C
16°C
Day Statistics
Maximum Wind
42 km/h
Humidity
78%
Precipitation
1 mm
UV Index
5
Visibility
10 km
Rain Chance
61%
Snow Chance
0%
Sun & Moon
Sunrise
06:23 AM
Sunset
07:43 PM
Moonrise
10:21 PM
Moonset
03:19 PM
Moon Phase
Last Quarter
Moon Illumination
39%
Air Quality
PM2.5
3.6
μg/m³
PM10
8.1
μg/m³
NO₂
7.3
μg/m³
O₃
45.6
μg/m³
SO₂
0.9
μg/m³
CO
121.5
μg/m³
Overcast
Saturday, September 05, 2026
High
19°C
Low
13°C
Rain Chance
10%
Hourly Forecast
15°C
15°C
15°C
15°C
14°C
14°C
13°C
13°C
14°C
15°C
16°C
17°C
17°C
18°C
18°C
19°C
19°C
19°C
19°C
18°C
17°C
17°C
17°C
17°C
Day Statistics
Maximum Wind
21 km/h
Humidity
65%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
06:24 AM
Sunset
07:41 PM
Moonrise
11:20 PM
Moonset
04:27 PM
Moon Phase
Waning Crescent
Moon Illumination
29%
Air Quality
PM2.5
4.5
μg/m³
PM10
11.3
μg/m³
NO₂
11.2
μg/m³
O₃
54.6
μg/m³
SO₂
1.6
μg/m³
CO
155.7
μg/m³
Overcast
Sunday, September 06, 2026
High
20°C
Low
17°C
Rain Chance
16%
Hourly Forecast
17°C
17°C
17°C
17°C
17°C
17°C
17°C
18°C
18°C
18°C
19°C
19°C
19°C
19°C
19°C
19°C
20°C
20°C
20°C
20°C
19°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
26 km/h
Humidity
67%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
16%
Snow Chance
0%
Sun & Moon
Sunrise
06:26 AM
Sunset
07:39 PM
Moonrise
Does not rise today
Moonset
05:21 PM
Moon Phase
Waning Crescent
Moon Illumination
20%
Air Quality
PM2.5
11.9
μg/m³
PM10
16.9
μg/m³
NO₂
17.6
μg/m³
O₃
62.5
μg/m³
SO₂
2.1
μg/m³
CO
114.8
μg/m³
Overcast
Monday, September 07, 2026
High
21°C
Low
18°C
Rain Chance
26%
Hourly Forecast
20°C
20°C
18°C
18°C
20°C
18°C
18°C
19°C
19°C
19°C
20°C
19°C
20°C
21°C
20°C
20°C
20°C
19°C
18°C
19°C
19°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
41 km/h
Humidity
72%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
26%
Snow Chance
0%
Sun & Moon
Sunrise
06:27 AM
Sunset
07:37 PM
Moonrise
12:36 AM
Moonset
05:59 PM
Moon Phase
Waning Crescent
Moon Illumination
12%
Air Quality
PM2.5
10.3
μg/m³
PM10
14.8
μg/m³
NO₂
15.9
μg/m³
O₃
54.2
μg/m³
SO₂
2.2
μg/m³
CO
154.6
μg/m³
Sunny
Tuesday, September 08, 2026
High
17°C
Low
14°C
Rain Chance
17%
Hourly Forecast
17°C
17°C
17°C
16°C
15°C
15°C
15°C
14°C
15°C
16°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
16°C
16°C
15°C
Day Statistics
Maximum Wind
45 km/h
Humidity
63%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
06:29 AM
Sunset
07:34 PM
Moonrise
02:04 AM
Moonset
06:27 PM
Moon Phase
Waning Crescent
Moon Illumination
6%
Patchy rain nearby
Wednesday, September 09, 2026
High
17°C
Low
13°C
Rain Chance
41%
Hourly Forecast
15°C
14°C
14°C
14°C
14°C
13°C
13°C
13°C
13°C
14°C
15°C
16°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
16°C
16°C
15°C
15°C
Day Statistics
Maximum Wind
45 km/h
Humidity
66%
Precipitation
1 mm
UV Index
5
Visibility
10 km
Rain Chance
41%
Snow Chance
0%
Sun & Moon
Sunrise
06:30 AM
Sunset
07:32 PM
Moonrise
03:37 AM
Moonset
06:47 PM
Moon Phase
New Moon
Moon Illumination
2%
Solar Radiation Data
Shortwave Radiation
32.58
Diffuse Radiation
19.09
DNI
0.93
GTI
27.64
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