The climate in Portsmouth during July can be summarized as hot, humid and wet.
July is in the summer in Portsmouth and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (75°F) is normal.
|Daytime temperature||30.8°C 87.4°F|
|Nightly temperature||23.9°C 74.9°F|
|Average temperature||27.3°C 81.1°F|
|Daily sunshine||8 hrs|
|Avg rainfall||156 mm 6.2 ins|
|Rainy days||20 days|
|Sea temperature||28.2°C 82.8°F|
|Windspeed||20.5kph 13 mph|
On average July is the 5th driest month of the year in Portsmouth with around 156mm 6.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 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 July 2020.
|Hottest month:||July||30.6°C 87.1°F|
|Driest month:||February||95mm 3.7ins|
|Coldest month:||February||28.3°C 82.9°F|
|Wettest month:||November||301mm 11.9ins|