Portsmouth Weather in July

Portsmouth in July averages 21°C (70°F) during the day and 15°C (59°F) at night. This is part of the summer season. Some rainfall is to be expected.

Rainfall in Portsmouth in July

Typically around 9 days of rainfall are expected, averaging 57 mm (2.2 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Portsmouth in July

Portsmouth in July is worth a visit. The temperature is perfect, with 21°C (70°F) during the day and 15°C (59°F) at night. This month falls in the summer season. The difference between afternoon and evening temperatures is usually noticeable. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. On average, it sees the highest temps of the year.

Sunshine in Portsmouth in July

Expect sunny days throughout the month, with an estimated 222 hours of sunshine. This makes it a pleasant time to visit Portsmouth.

If you favor pleasant temperatures and minimal rainfall, July is one of the best months to visit Portsmouth.

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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Portsmouth's climate page.

Portsmouth Temperature in July

Min Temperature 15°C (59°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 29%  

Precipitation 57 mm (2.2 in)  

Rainy days 9 days  

Humidity 75% *  

Sunshine 222 hours *  

Percentage Sunshine 47% *  

* Data from: Southampton, the United Kingdom (25 KM, 15 Miles).

What to Wear in Portsmouth in July

Comfortable temperatures call for an easy wardrobe in July. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Portsmouth in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Portsmouth's climate page.

More climate data for Portsmouth

Temperature Rainfall Sunshine Humidity

See the full Portsmouth climate overview or explore weather in the United Kingdom.