Weather in Plymouth: May
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Average day temperature: | 57.3°F |
| Average night temperature: | 49.3°F | |
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Sea water temperature: | 53.3°F |
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Number of sunny days: | 8 days |
| Day length: | 14.7 - 16.1 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.9 in. | |
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forecast
| Plymouth |
temperature
| Plymouth |
Air temperature in May, °F
The highest day temperature during May of 2025 was 63°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during May were 59.6°F and 51.5°F.
Sea water temperature in Plymouth in May, °F
The average sea water temperature in May of 2025 was 56.0°F. The highest and lowest sea temperatures during the month were 57.6°F and 54.1°F.
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Plymouth in May is 1.9 in. Other months of the year show relatively similar values.
The average wind speed value in May is 11.0 mph It makes May one of the least windy months of the year.
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: 7.1.
Best time for vacation in Plymouth
Plymouth on a weather map
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