Weather Forecast for Portsmouth
Hampshire, United Kingdom
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Current Weather - Portsmouth: 20°C
Current Weather - Portsmouth: 20°C
Hampshire, United Kingdom
Sunny
Feels like 13°C
Wind
38 km/h E
Humidity
51%
Pressure
1017 mb
UV Index
2
Visibility
10 km
Overcast
Monday, August 24, 2026
High
22°C
Low
15°C
Rain Chance
10%
Hourly Forecast
20°C
21°C
21°C
22°C
21°C
20°C
19°C
18°C
18°C
Day Statistics
Maximum Wind
38 km/h
Humidity
66%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
06:06 AM
Sunset
08:07 PM
Moonrise
07:00 PM
Moonset
01:48 AM
Moon Phase
Waxing Gibbous
Moon Illumination
93%
Air Quality
PM2.5
6.6
μg/m³
PM10
10.3
μg/m³
NO₂
4.4
μg/m³
O₃
83.7
μg/m³
SO₂
0.6
μg/m³
CO
174.5
μg/m³
Overcast
Tuesday, August 25, 2026
High
21°C
Low
18°C
Rain Chance
56%
Hourly Forecast
18°C
18°C
18°C
19°C
18°C
18°C
18°C
18°C
19°C
19°C
20°C
21°C
20°C
19°C
19°C
20°C
20°C
20°C
20°C
19°C
19°C
19°C
18°C
18°C
Day Statistics
Maximum Wind
38 km/h
Humidity
71%
Precipitation
1 mm
UV Index
5
Visibility
10 km
Rain Chance
56%
Snow Chance
0%
Sun & Moon
Sunrise
06:07 AM
Sunset
08:05 PM
Moonrise
07:21 PM
Moonset
02:59 AM
Moon Phase
Full Moon
Moon Illumination
97%
Air Quality
PM2.5
9.5
μg/m³
PM10
15.1
μg/m³
NO₂
7.2
μg/m³
O₃
80.7
μg/m³
SO₂
1.1
μg/m³
CO
188.6
μg/m³
Overcast
Wednesday, August 26, 2026
High
21°C
Low
18°C
Rain Chance
49%
Hourly Forecast
18°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
19°C
19°C
20°C
20°C
21°C
21°C
21°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
21 km/h
Humidity
83%
Precipitation
1 mm
UV Index
5
Visibility
10 km
Rain Chance
49%
Snow Chance
0%
Sun & Moon
Sunrise
06:09 AM
Sunset
08:03 PM
Moonrise
07:37 PM
Moonset
04:11 AM
Moon Phase
Full Moon
Moon Illumination
100%
Air Quality
PM2.5
7.3
μg/m³
PM10
12
μg/m³
NO₂
9.3
μg/m³
O₃
84.1
μg/m³
SO₂
0.6
μg/m³
CO
160.1
μg/m³
Light rain shower
Thursday, August 27, 2026
High
20°C
Low
18°C
Rain Chance
78%
Hourly Forecast
20°C
19°C
20°C
19°C
19°C
19°C
18°C
18°C
19°C
19°C
19°C
19°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
19°C
18°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
21 km/h
Humidity
76%
Precipitation
6 mm
UV Index
4
Visibility
10 km
Rain Chance
78%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
08:01 PM
Moonrise
07:50 PM
Moonset
05:23 AM
Moon Phase
Full Moon
Moon Illumination
100%
Air Quality
PM2.5
4.6
μg/m³
PM10
6.6
μg/m³
NO₂
8.4
μg/m³
O₃
77
μg/m³
SO₂
1.1
μg/m³
CO
108.6
μg/m³
Light rain shower
Friday, August 28, 2026
High
20°C
Low
17°C
Rain Chance
82%
Hourly Forecast
18°C
18°C
17°C
17°C
17°C
17°C
17°C
17°C
18°C
18°C
18°C
20°C
20°C
18°C
19°C
20°C
18°C
20°C
20°C
18°C
18°C
18°C
17°C
17°C
Day Statistics
Maximum Wind
30 km/h
Humidity
73%
Precipitation
11 mm
UV Index
6
Visibility
10 km
Rain Chance
82%
Snow Chance
0%
Sun & Moon
Sunrise
06:12 AM
Sunset
07:58 PM
Moonrise
08:01 PM
Moonset
06:34 AM
Moon Phase
Full Moon
Moon Illumination
98%
Air Quality
PM2.5
4.4
μg/m³
PM10
6.9
μg/m³
NO₂
6.1
μg/m³
O₃
72.6
μg/m³
SO₂
1.1
μg/m³
CO
146.1
μg/m³
Patchy rain nearby
Saturday, August 29, 2026
High
19°C
Low
16°C
Rain Chance
74%
Hourly Forecast
16°C
16°C
16°C
16°C
16°C
16°C
17°C
17°C
17°C
18°C
18°C
18°C
18°C
19°C
19°C
19°C
19°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
43 km/h
Humidity
79%
Precipitation
4 mm
UV Index
4
Visibility
10 km
Rain Chance
74%
Snow Chance
0%
Sun & Moon
Sunrise
06:13 AM
Sunset
07:56 PM
Moonrise
08:12 PM
Moonset
07:44 AM
Moon Phase
Waning Gibbous
Moon Illumination
94%
Patchy rain nearby
Sunday, August 30, 2026
High
19°C
Low
17°C
Rain Chance
64%
Hourly Forecast
18°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
19°C
19°C
19°C
19°C
19°C
19°C
19°C
19°C
19°C
18°C
18°C
18°C
18°C
17°C
Day Statistics
Maximum Wind
49 km/h
Humidity
78%
Precipitation
2 mm
UV Index
4
Visibility
10 km
Rain Chance
64%
Snow Chance
0%
Sun & Moon
Sunrise
06:15 AM
Sunset
07:54 PM
Moonrise
08:24 PM
Moonset
08:55 AM
Moon Phase
Waning Gibbous
Moon Illumination
87%
Solar Radiation Data
Shortwave Radiation
718.98
Diffuse Radiation
207.17
DNI
0
GTI
0
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