Weather in New Haven: May
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Average day temperature: | 63.6°F |
| Average night temperature: | 52.9°F | |
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Sea water temperature: | 54.5°F |
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Number of sunny days: | 12 days |
| Day length: | 14.0 - 14.9 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.0 in. | |
| more information | ||
14 days
forecast
forecast
| New Haven |
sea water
temperature
temperature
| New Haven |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 87°F. At the same time the lowest night temperature was 42°F. Daily and nightly averages during May were 67.6°F and 52.8°F.
Sea water temperature in New Haven in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 54.4°F. The highest and lowest sea temperatures during the month were 59.7°F and 49.3°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in New Haven in May is 1.0 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 8.4 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.0.
Best time for vacation in New Haven
New Haven on a weather map
Places in USA:
Name
°F
24 Hours Forecast
New Haven
Local time: 05:45
June 26, friday
0600
64°F
NE
5 mph
5 mph
0900
68°F
N
7 mph
7 mph
1200
77°F
NE
9 mph
9 mph
1500
84°F
NE
12 mph
12 mph
1800
73°F
NE
11 mph
11 mph
2100
68°F
NE
8 mph
8 mph
June 27, saturday
0000
68°F
NE
7 mph
7 mph
0300
66°F
NE
9 mph
9 mph
