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Portsmouth weather in July 2025
Expect 82°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Portsmouth in July. Check more long-term weather averages for Portsmouth in July before you book your next holiday to New Hampshire in 2025/2026.
- 8282°F max day temperature
- 9 hours of sunshine per day
- 1010 days with some rainfall
- 5959°F min night temperature
- 1515 hours of daylight per day
- LLow heat & humidity
- 3.03.0 inches of monthly rainfall
- 88 (Very High) UV index
- 6363°F sea temperature
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Recommended for New Hampshire
The July weather guide for New Hampshire (Portsmouth) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C) | Imperial (°F)
More about the USA
How hot is it in Portsmouth in July?
Daytime temperatures usually reach 82°F in Portsmouth in July with low heat and humidity, falling to 59°F at night.
How sunny is it in Portsmouth in July?
There are normally 9 hours of bright sunshine each day in Portsmouth in July - that's 62% of daylight hours.
How warm is the sea around Portsmouth in July?
The average sea temperature around Portsmouth in July is 63°F.
Does it rain in Portsmouth in July?
There are usually 10 days with some rain in Portsmouth in July and the average monthly rainfall is 3.0 inches.
Portsmouth July sunrise & sunset times
Browse the sunrise and sunset times for Portsmouth in July 2025. Select a month to view Portsmouth sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Tuesday, 1st July 2025 | 04:08 | 19:26 |
Wednesday, 16th July 2025 | 04:18 | 19:19 |
Thursday, 31st July 2025 | 04:33 | 19:05 |
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