Measurements:
°C
°F
CURRENT WEATHER
17:27
Groton
44°F
N 11 mph
Feels like: 38°F
Precip: 0%
World Resorts USA Groton Weather

7 Day Weather Forecast

01.09
fri
DAY
44°F
N 10 mph
precip
0%
NIGHT
44°F
NE 12 mph
precip
100%
01.10
sat
DAY
40°F
W 7 mph
precip
0%
NIGHT
38°F
W 11 mph
precip
100%
01.11
sun
DAY
36°F
E 1 mph
precip
0%
NIGHT
32°F
E 20 mph
precip
0%
01.12
mon
DAY
32°F
SE 17 mph
precip
0%
NIGHT
32°F
NE 12 mph
precip
0%
01.13
tue
DAY
38°F
NE 13 mph
precip
0%
NIGHT
36°F
N 11 mph
precip
0%
01.14
wed
DAY
40°F
NE 14 mph
precip
100%
NIGHT
36°F
NE 12 mph
precip
0%
01.15
thu
DAY
32°F
SE 6 mph
precip
0%
NIGHT
24°F
S 13 mph
precip
100%

Groton Sea Water Temperature in January, °F

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Groton was 5.0°F. The maximum and minimum values were 3.5°F and 7.0°F respectively.

Groton on the Weather Map

Best Time to Visit Groton
The most sunny months:
November 17 days
October 14 days
December 13 days
The most warm months:
July 83.2 °F
August 81.4 °F
June 76.1 °F
Warmest sea temperature:
August 72.9 °F
July 71.2 °F
September 70.9 °F
The most cold months:
January 35.3 °F
February 36.7 °F
December 39.9 °F
The most rainy months:
July 3 days
November 3 days
January 3 days
The most windy months:
December 10 mph
January 10 mph
March 10 mph
more details