Weather in Plymouth: March
| Average day temperature: | 49.6°F | |
| Average night temperature: | 43.1°F | |
| Sea water temperature: | 48.7°F | |
| Number of sunny days: | 8 days | |
| Day length: | 11.0 - 12.9 hours | |
| Number of rainy days: | 4 days | |
| Precipitation totals: | 2.3 in. | |
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forecast
| Plymouth |
temperature
| Plymouth |
Air temperature in March, °F
The highest day temperature during March of 2026 was 56°F. At the same time the lowest night temperature was 37°F. Daily and nightly averages during March were 51.2°F and 44.7°F.
Sea water temperature in Plymouth in March, °F
The average sea water temperature in March of 2026 was 50.5°F. The highest and lowest sea temperatures during the month were 51.3°F and 49.8°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 2.6 in. Other months of the year show relatively similar values.
The average wind speed value in March is 14.9 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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