Measurements:
°C
°F
CURRENT WEATHER
07:21
Groton
38°F
W 7 mph
Feels like: 36°F
Precip: 73%
World Resorts USA Groton Weather

7 Day Weather Forecast

04.03
fri
DAY
44°F
NE 7 mph
precip
0%
NIGHT
48°F
NE 12 mph
precip
0%
04.04
sat
DAY
54°F
W 8 mph
precip
0%
NIGHT
38°F
W 16 mph
precip
0%
04.05
sun
DAY
48°F
NE 20 mph
precip
0%
NIGHT
46°F
E 9 mph
precip
0%
04.06
mon
DAY
44°F
E 14 mph
precip
0%
NIGHT
42°F
E 9 mph
precip
100%
04.07
tue
DAY
46°F
E 14 mph
precip
0%
NIGHT
34°F
NE 16 mph
precip
0%
04.08
wed
DAY
38°F
SW 6 mph
precip
0%
NIGHT
32°F
N 7 mph
precip
0%
04.09
thu
DAY
40°F
N 8 mph
precip
0%
NIGHT
34°F
NE 6 mph
precip
0%

Groton Sea Water Temperature in April, °F

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for Groton was 7.0°F. The maximum and minimum values were 5.6°F and 9.4°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