Best time to visit Portsmouth

Find the best time to visit Portsmouth and plan your perfect trip in 2024/2025. Get holiday inspiration, weather guides, travel advice and find great deals.

Portsmouth by month

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When is the best time to visit Portsmouth?

The best time to visit Portsmouth is June and July based on the following average weather conditions.

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Hours of Sunshine (daily)

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Best time to visit

The weather guide for New Hampshire (Portsmouth) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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Which is the hottest month in Portsmouth?

The hottest time of year in Portsmouth is normally July. Expect maximum daytime temperatures to reach 28°C with low heat and humidity.

Which month has the most rain in Portsmouth?

In terms of rainfall, November is usually the wettest month in Portsmouth with 125mm on average. There are normally 11 days in November with some rain.

When is it sunniest in Portsmouth?

The sunniest time of year in Portsmouth is normally July with bright sunshine on average for 62% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Portsmouth?

The sea is usually at its warmest in Portsmouth in August when the water temperature reaches 18°C.

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