Weather in Plymouth: March
| Average day temperature: | 49.4°F | |
| Average night temperature: | 43.0°F | |
| Sea water temperature: | 48.5°F | |
| Number of sunny days: | 8 days | |
| Day length: | 11.0 - 12.9 hours | |
| Number of rainy days: | 5 days | |
| Precipitation totals: | 2.4 in. | |
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forecast
| Plymouth |
temperature
| Plymouth |
Air temperature in March, °F
The highest day temperature during March of 2025 was 55°F. At the same time the lowest night temperature was 31°F. Daily and nightly averages during March were 49.9°F and 42.3°F.
Sea water temperature in Plymouth in March, °F
The average sea water temperature in March of 2025 was 49.4°F. The highest and lowest sea temperatures during the month were 50.5°F and 48.6°F.
Mostly all days in March are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in March, in.
Precipitation total value in Plymouth in March is 2.8 in. Other months of the year show relatively similar values.
The average wind speed value in March is 15.1 mph It makes March one of the most 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 March is: 4.8.
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Plymouth on a weather map

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