Weather in Boston: May
Average day temperature: | 64.5°F | |
Average night temperature: | 53.2°F | |
Sea water temperature: | 52.0°F | |
Number of sunny days: | 12 days | |
Day length: | 14.1 - 15.1 hours | |
Number of rainy days: | 4 days | |
Precipitation totals: | 2.5 in. | |
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14 days
forecast
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Boston |
sea water
temperature
temperature
Boston |
Air temperature in May, °F
Show year:
2024
2023
2022
The highest day temperature during May of 2024 was 84°F. At the same time the lowest night temperature was 43°F. Day and night temperature averages during May were 64.5°F and 53.4°F.
Sea water temperature in Boston in May, °F
Show year:
2024
2023
2022
The average sea water temperature in May of 2024 was 53.9°F. The highest and lowest sea temperatures during the month were 60.3°F and 47.5°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Boston in May is 2.8 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 8.4 mph
Average sunny hours
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: 8.6.
Best time for vacation in Boston
Boston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boston
Local time: 10:07
November 21, thursday
1200
46°F
W
14 mph
14 mph
1500
48°F
SW
14 mph
14 mph
1800
48°F
W
16 mph
16 mph
2100
48°F
W
14 mph
14 mph
November 22, friday
0000
50°F
W
16 mph
16 mph
0300
46°F
N
9 mph
9 mph
0600
45°F
NE
7 mph
7 mph
0900
46°F
N
4 mph
4 mph