Portsmouth Weather in August

What's the weather like in Portsmouth (England) in August 2024?

The climate in Portsmouth during August can be summarized as mild and reasonably dry.

August is in the summer in Portsmouth and is typically the warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 14°C (57°F) is normal.

Portsmouth weather averages (imperial / metric)
Daytime temperature 20.6°C 69°F
Nightly temperature 13.7°C 56.6°F
Average temperature 17.1°C 62.8°F
Daily sunshine 7.6 hrs
Avg rainfall 53 mm 2.1 ins
Rainy days 10 days
Sea temperature 16.9°C 62.4°F
Humidity 82%
Windspeed 13.7kph 9 mph

On average August is the 6th driest month of the year in Portsmouth with around 53mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.6 hours of sunshine per day.

August temperatures in Portsmouth

Portsmouth average temperature in August

August rainfall

Portsmouth average rain in August

August hourly sunshine

Portsmouth average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Portsmouth in August 2024.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Portsmouth weather stats

Portsmouth weather statistics
Hottest month: July 20.5°C 68.9°F
Driest month: July 39mm 1.5ins
Sunniest month: August 7.6hrs
Coldest month: February 7.4°C 45.3°F
Wettest month: November 80mm 3.1ins
Map showing location of Portsmouth (50.79899, -1.09125) Portsmouth map pin © Google

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