World Resorts

USA

Groton Weather

Groton 14 Days Forecast

30.12
tue

Day

27°F

E 25 mph

Precip.
0%

Night

27°F

E 21 mph

Precip.
0%

31.12
wed

Day

30°F

E 17 mph

Precip.
0%

Night

32°F

NE 21 mph

Precip.
0%

01.01
thu

Day

28°F

SE 12 mph

Precip.
0%

Night

25°F

E 10 mph

Precip.
0%

02.01
fri

Day

27°F

E 14 mph

Precip.
0%

Night

28°F

E 9 mph

Precip.
0%

03.01
sat

Day

28°F

E 5 mph

Precip.
0%

Night

27°F

SE 5 mph

Precip.
0%

04.01
sun

Day

28°F

S 11 mph

Precip.
0%

Night

23°F

SW 7 mph

Precip.
0%

05.01
mon

Day

28°F

NW 5 mph

Precip.
0%

Night

37°F

N 11 mph

Precip.
22%

06.01
tue

Day

45°F

NW 23 mph

Precip.
100%

Night

36°F

SE 15 mph

Precip.
47%

07.01
wed

Day

28°F

E 21 mph

Precip.
0%

Night

25°F

E 17 mph

Precip.
0%

08.01
thu

Day

32°F

SE 8 mph

Precip.
0%

Night

27°F

SE 9 mph

Precip.
0%

09.01
fri

Day

32°F

SE 7 mph

Precip.
0%

Night

32°F

E 6 mph

Precip.
0%

10.01
sat

Day

36°F

N 5 mph

Precip.
100%

Night

37°F

NW 9 mph

Precip.
0%

11.01
sun

Day

37°F

SE 7 mph

Precip.
0%

Night

30°F

SE 14 mph

Precip.
0%

12.01
mon

Day

30°F

S 8 mph

Precip.
0%

Night

32°F

SW 6 mph

Precip.
0%

sea water
temperature

Groton

monthly
weather

Groton

current
weather

Groton

7 days
forecast

Groton

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2025

2024

2023

The average sea water temperature in December of 2025 was 46.2°F. The highest and lowest sea temperatures during the month were 50.7°F and 42.6°F.

Show year:

2025

2024

2023

The average sea water temperature in January of 2025 was 41.1°F. The highest and lowest sea temperatures during the month were 44.6°F and 38.3°F.