Measurements:
°C
°F
CURRENT WEATHER
11:22
Boston
62°F
NW 9 mph
Feels like: 62°F
Precip: 0%
World Resorts USA Boston Weather

7 Day Weather Forecast

05.14
thu
DAY
62°F
NW 9 mph
precip
0%
NIGHT
52°F
E 1 mph
precip
61%
05.15
fri
DAY
52°F
SW 9 mph
precip
74%
NIGHT
50°F
SE 4 mph
precip
0%
05.16
sat
DAY
70°F
NE 7 mph
precip
0%
NIGHT
60°F
NE 11 mph
precip
0%
05.17
sun
DAY
82°F
SE 8 mph
precip
0%
NIGHT
62°F
SW 7 mph
precip
0%
05.18
mon
DAY
72°F
W 6 mph
precip
0%
NIGHT
60°F
N 7 mph
precip
0%
05.19
tue
DAY
90°F
NE 10 mph
precip
0%
NIGHT
76°F
NE 9 mph
precip
0%
05.20
wed
DAY
90°F
E 10 mph
precip
0%
NIGHT
68°F
E 9 mph
precip
0%

Boston Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Boston was 11.7°F. The maximum and minimum values were 9.1°F and 13.8°F respectively.

Boston on the Weather Map

Best Time to Visit Boston
The most sunny months:
August 16 days
July 15 days
November 14 days
The most warm months:
July 85.5 °F
August 83.7 °F
June 76.9 °F
Warmest sea temperature:
August 69.5 °F
July 68.6 °F
September 65.9 °F
The most cold months:
January 31.3 °F
February 32.9 °F
December 38.0 °F
The most rainy months:
April 5 days
May 4 days
October 4 days
The most windy months:
January 11 mph
March 11 mph
February 10 mph
more details