Measurements:
°C
°F
CURRENT WEATHER
16:58
Groton
40°F
N 11 mph
Feels like: 34°F
Precip: 0%
World Resorts USA Groton Weather

7 Day Weather Forecast

03.13
fri
DAY
38°F
NE 9 mph
precip
0%
NIGHT
38°F
N 26 mph
precip
63%
03.14
sat
DAY
40°F
E 24 mph
precip
0%
NIGHT
32°F
SE 14 mph
precip
0%
03.15
sun
DAY
36°F
NW 9 mph
precip
0%
NIGHT
38°F
NW 15 mph
precip
0%
03.16
mon
DAY
48°F
N 20 mph
precip
100%
NIGHT
52°F
N 29 mph
precip
100%
03.17
tue
DAY
34°F
E 19 mph
precip
0%
NIGHT
26°F
E 17 mph
precip
0%
03.18
wed
DAY
30°F
E 12 mph
precip
0%
NIGHT
32°F
NE 9 mph
precip
0%
03.19
thu
DAY
38°F
N 12 mph
precip
0%
NIGHT
38°F
NE 12 mph
precip
0%

Groton Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Groton was 4.5°F. The maximum and minimum values were 3.2°F and 6.0°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 34.6 °F
February 36.0 °F
December 39.9 °F
The most rainy months:
November 3 days
July 3 days
December 3 days
The most windy months:
January 10 mph
December 10 mph
March 10 mph
more details