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New Haven weather in May 2025
Expect 19°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in New Haven in May. Check more long-term weather averages for New Haven in May before you book your next holiday to Connecticut in 2025/2026.
- 1919°C max day temperature
- 9 hours of sunshine per day
- 1111 days with some rainfall
- 99°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 8989 mm of monthly rainfall
- 77 (High) UV index
- 1111°C sea temperature
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Recommended for Connecticut
The May weather guide for Connecticut (New Haven) 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 / mm) | Imperial (°F / inches)
More about the USA
How hot is it in New Haven in May?
Daytime temperatures usually reach 19°C in New Haven in May, falling to 9°C at night.
How sunny is it in New Haven in May?
There are normally 9 hours of bright sunshine each day in New Haven in May - that's 59% of daylight hours.
Is the sea cold around New Haven in May?
The average sea temperature around New Haven in May is 11°C.
Does it rain in New Haven in May?
There are usually 11 days with some rain in New Haven in May and the average monthly rainfall is 89mm.
New Haven May sunrise & sunset times
Browse the sunrise and sunset times for New Haven in May 2025. Select a month to view New Haven sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 04:49 | 18:50 |
Friday, 16th May 2025 | 04:32 | 19:05 |
Saturday, 31st May 2025 | 04:21 | 19:18 |
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