Weather in Groton: April
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Average day temperature: | 53.9°F |
| Average night temperature: | 43.8°F | |
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Sea water temperature: | 45.4°F |
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Number of sunny days: | 8 days |
| Day length: | 12.7 - 14.0 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.3 in. | |
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forecast
| Groton |
temperature
| Groton |
Air temperature in April, °F
The highest day temperature during April of 2025 was 73°F. At the same time the lowest night temperature was 29°F. Daily and nightly averages during April were 56.2°F and 45.1°F.
Sea water temperature in Groton in April, °F
The average sea water temperature in April of 2025 was 44.6°F. The highest and lowest sea temperatures during the month were 48.9°F and 42.1°F.
Mostly all days in April are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in April, in.
Precipitation total value in Groton in April is 1.3 in. Other months of the year show relatively similar values.
The average wind speed value in April is 9.6 mph
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 April is: 6.6.
Best time for vacation in Groton
Groton on a weather map
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