Which is the hottest month in Portsmouth?

The hottest time of year in Portsmouth is normally September. Expect maximum daytime temperatures to reach 31°C with high heat and humidity.

Which month has the most rain in Portsmouth?

In terms of rainfall, November is usually the wettest month in Portsmouth with 300mm on average. There are normally 19 days in November with some rain.

When is it sunniest in Portsmouth?

The sunniest time of year in Portsmouth is normally April with bright sunshine on average for 66% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in Portsmouth?

The sea is usually at its warmest in Portsmouth in September when the water temperature reaches 29°C.

Best time to visit Portsmouth

Q: When is the best time to visit Portsmouth?

The best time to visit Portsmouth is January based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Portsmouth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Destination

When is the best time to visit Portsmouth?

The best time to visit Portsmouth is January based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

4
Jan
4
Feb
4
Mar
4
Apr
4
May
3.5
Jun
3.5
Jul
3.5
Aug
3
Sep
3.5
Oct
3.5
Nov
3.5
Dec

Change criteria

Max Day Temperature (°F)

82
Jan
84
Feb
84
Mar
86
Apr
86
May
88
Jun
88
Jul
88
Aug
88
Sep
86
Oct
86
Nov
84
Dec

Hours of Sunshine (daily)

7
Jan
7
Feb
8
Mar
8
Apr
8
May
8
Jun
8
Jul
8
Aug
7
Sep
7
Oct
7
Nov
6
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Dominica (Portsmouth) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)