Measurements:
°C
°F
CURRENT WEATHER
19:53
Groton
56°F
SW 11 mph
Feels like: 54°F
Precip: 61%
World Resorts USA Groton Weather

7 Day Weather Forecast

05.18
sat
DAY
56°F
S 9 mph
precip
100%
NIGHT
54°F
SW 10 mph
precip
100%
05.19
sun
DAY
58°F
SW 11 mph
precip
80%
NIGHT
54°F
SW 8 mph
precip
0%
05.20
mon
DAY
64°F
NW 8 mph
precip
0%
NIGHT
54°F
NE 6 mph
precip
0%
05.21
tue
DAY
66°F
NE 9 mph
precip
0%
NIGHT
56°F
NE 8 mph
precip
0%
05.22
wed
DAY
68°F
NE 11 mph
precip
0%
NIGHT
58°F
NE 9 mph
precip
0%
05.23
thu
DAY
66°F
NE 11 mph
precip
100%
NIGHT
58°F
SE 7 mph
precip
0%
05.24
fri
DAY
72°F
SE 6 mph
precip
0%
NIGHT
60°F
E 5 mph
precip
0%

Groton Sea Water Temperature in May, °F

Select Year: 2023 2022 2021

The average sea surface temperature in May 2023 for Groton was 12.0°F. The maximum and minimum values were 9.5°F and 14.9°F respectively.

Groton on the Weather Map

Best Time to Visit Groton
The most sunny months:
November 16 days
September 15 days
October 12 days
The most warm months:
July 84.0 °F
August 82.5 °F
June 76.1 °F
Warmest sea temperature:
August 73.2 °F
September 71.5 °F
July 71.2 °F
The most cold months:
January 35.9 °F
February 37.0 °F
December 41.3 °F
The most rainy months:
November 4 days
July 4 days
October 4 days
The most windy months:
March 9 mph
January 9 mph
April 9 mph
more details