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Best time to go to Portsmouth
Max Day Temperature (°C)
The best time to go guide for Portsmouth, New Hampshire shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia) & the Met Office. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
Best time to go to Portsmouth, New Hampshire, USA
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What's the hottest it gets in New Hampshire?
Below is the hottest it usually gets at popular destinations in New Hampshire. Select a destination to see the best time to go based on your preferred weather.
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