Portsmouth Weather in June

The climate in Portsmouth during June can be summarized as hot, humid and a little damp.

June is in the summer in Portsmouth and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (83°F), whilst at night 19°C (66°F) is normal.

On average June is the 6th wettest month of the year in Portsmouth with around 88mm 3.5 inches of rain making it a a little damp 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 10 hours of sunshine per day.

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 June 2024.