Measurements:
°C
°F
CURRENT WEATHER
20:58
Groton
58°F
SE 17 mph
Feels like: 54°F
Precip: 3%
World Resorts USA Groton Weather

14 Day Weather Forecast

10.05
mon
DAY
66°F
E 17 mph
precip
6%
NIGHT
56°F
SE 17 mph
precip
3%
10.06
tue
DAY
56°F
SE 16 mph
precip
1%
NIGHT
52°F
SE 11 mph
precip
2%
10.07
wed
DAY
62°F
NE 12 mph
precip
2%
NIGHT
64°F
NE 22 mph
precip
8%
10.08
thu
DAY
68°F
NE 19 mph
precip
8%
NIGHT
62°F
S 9 mph
precip
4%
10.09
fri
DAY
64°F
SE 14 mph
precip
2%
NIGHT
62°F
E 12 mph
precip
4%
10.10
sat
DAY
62°F
SE 13 mph
precip
3%
NIGHT
56°F
SW 7 mph
precip
12%
10.11
sun
DAY
64°F
N 14 mph
precip
15%
NIGHT
62°F
N 10 mph
precip
46%
10.12
mon
DAY
66°F
SW 9 mph
precip
75%
NIGHT
60°F
S 17 mph
precip
29%
10.13
tue
DAY
54°F
SW 9 mph
precip
6%
NIGHT
56°F
N 8 mph
precip
4%
10.14
wed
DAY
60°F
NE 12 mph
precip
6%
NIGHT
62°F
NE 16 mph
precip
10%
10.15
thu
DAY
66°F
NE 14 mph
precip
22%
NIGHT
64°F
NE 11 mph
precip
29%
10.16
fri
DAY
68°F
N 8 mph
precip
28%
NIGHT
66°F
W 11 mph
precip
54%
10.17
sat
DAY
66°F
NW 7 mph
precip
80%
NIGHT
66°F
SE 7 mph
precip
49%
10.18
sun
DAY
64°F
SE 15 mph
precip
10%
NIGHT
54°F
S 18 mph
precip
22%

Groton Sea Water Temperature in October, °F

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Groton was 66.7°F. The maximum and minimum values were 61.6°F and 71.6°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 83.8 °F
August 81.6 °F
June 77.2 °F
Warmest sea temperature:
August 73.0 °F
July 71.1 °F
September 71.0 °F
The most cold months:
January 34.6 °F
February 36.0 °F
December 39.9 °F
The most rainy months:
July 3 days
November 3 days
December 3 days
The most windy months:
January 10 mph
December 10 mph
March 10 mph
more details
USA Resorts:
NAME
F°
Boston +58
Chicago +60
Hawaii +82
Houston +84
Las Vegas +92
Los Angeles +102
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
all resorts
24 Hours Weather Forecast
Groton
Local time: 20:58
05 oct, monday
2100 58°F
SE
17 mph
06 oct, tuesday
0000 56°F
SE
17 mph
0300 50°F
SE
16 mph
0600 48°F
SE
21 mph
0900 48°F
SE
17 mph
1200 56°F
SE
16 mph
1500 60°F
SE
17 mph
1800 58°F
SE
14 mph