Weather in Dewey Beach: March
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Average day temperature: | 50.6°F |
| Average night temperature: | 44.6°F | |
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Sea water temperature: | 44.4°F |
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Number of sunny days: | 13 days |
| Day length: | 11.4 - 12.6 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.1 in. | |
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forecast
| Dewey Beach |
temperature
| Dewey Beach |
Air temperature in March, °F
The highest day temperature during March of 2026 was 69°F. At the same time the lowest night temperature was 32°F. Daily and nightly averages during March were 47.9°F and 43.5°F.
Sea water temperature in Dewey Beach in March, °F
The average sea water temperature in March of 2026 was 40.9°F. The highest and lowest sea temperatures during the month were 46.2°F and 35.6°F.
Mostly all days in March are sunny but cloudy days are also possible.
Precipitation total in March, in.
Precipitation total value in Dewey Beach in March is 1.1 in. Other months of the year show relatively similar values.
The average wind speed value in March is 13.4 mph It makes March most windy month 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: 7.0.
Best time for vacation in Dewey Beach
Dewey Beach on a weather map
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