Weather Forecast for Portsmouth

Hampshire, United Kingdom

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Current Weather - Portsmouth: 20°C

Hampshire, United Kingdom

Clear

Feels like 20°C

Wind

9 km/h SSE

Humidity

71%

Pressure

1010 mb

UV Index

0

Visibility

10 km

Sunny

Sunny

Tuesday, August 04, 2026

High

23°C

Low

18°C

Rain Chance

8%

Hourly Forecast

Clear 20°C
02:00
Clear 19°C
03:00
Clear 19°C
04:00
Clear 19°C
05:00
Sunny 18°C
06:00
Sunny 20°C
07:00
Sunny 21°C
08:00
Sunny 21°C
09:00
Sunny 22°C
10:00
Partly Cloudy 23°C
11:00
Partly Cloudy 23°C
12:00
Partly Cloudy 23°C
13:00
Sunny 23°C
14:00
Sunny 23°C
15:00
Sunny 23°C
16:00
Sunny 23°C
17:00
Sunny 22°C
18:00
Sunny 21°C
19:00
Partly Cloudy 20°C
20:00
Partly Cloudy 19°C
21:00
Partly Cloudy 19°C
22:00
Partly Cloudy 19°C
23:00
Aug 05

Day Statistics

Maximum Wind

30 km/h

Humidity

73%

Precipitation

0 mm

UV Index

7

Visibility

10 km

Rain Chance

8%

Snow Chance

0%

Sun & Moon

Sunrise

05:35 AM

Sunset

08:45 PM

Moonrise

10:28 PM

Moonset

12:18 PM

Moon Phase

Last Quarter

Moon Illumination

55%

Air Quality

PM2.5

9.3

μg/m³

PM10

15.9

μg/m³

NO₂

15.8

μg/m³

O₃

60.3

μg/m³

SO₂

1.4

μg/m³

CO

134.1

μg/m³

US EPA Index: 1 GB DEFRA Index: 1