Portsmouth Weather in May

With daytime temperatures of 26°C (79°F) and nighttime lows of 15°C (59°F), May in Portsmouth brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 110 mm (4.3 in) falls on average.

Rainfall in Portsmouth in May

Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 110 mm (4.3 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Portsmouth in May

In May, Portsmouth sees high temperatures, with highs of 26°C (79°F). Nights drop to around 15°C (59°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. 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.

Sunshine in Portsmouth in May

The city usually sees around 276 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April typically offers the best weather for Portsmouth.