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Groton weather essentials

Monthly Averages
Month
High
Low
Precip
Dec
41°F 5°C
27°F -2°C
2 in 4 cm
Jan
34°F 1°C
21°F -6°C
1 in 3 cm
Feb
37°F 2°C
23°F -5°C
1 in 4 cm
Mar
42°F 5°C
29°F -1°C
2 in 5 cm
Apr
53°F 11°C
38°F 3°C
2 in 5 cm
May
61°F 16°C
46°F 7°C
2 in 6 cm

Extended Forecast
Wednesday
Dec 2
Hi:
52°F 11°C
Lo:
49°F 9°C
Thursday
Dec 3
Hi:
59°F 15°C
Lo:
38°F 3°C
Friday
Dec 4
Hi:
49°F 9°C
Lo:
31°F 0°C
More weather for Groton
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Traveler Advice on Things to do in Groton

Traveler Lists
Traveler Forum
  • Post a question and join other travelers discussing Groton
Destination of the Day
Maldives
  • Resident population: 396,334 Annual visitors: 676,000 (est.)
  • Major features: beach resorts, water sports, coral reefs
  • 11,158 TripAdvisor reviews of 168 accommodations, 16 attractions and 55 restaurants
A cluster of idyllic atolls in the Indian Ocean, about 200 of the Maldives' 1200 islets are inhabited. Another 100 are private resort islands.
Flights to New Haven from $224

Find the Best Things to Do

Show All Things To Do
[ Popularity ] [ Alphabetically ]
Historic Ship Nautilus and Submarine Force Museum
TripAdvisor Traveler Rating: 4.5 of 5 stars
TripAdvisor Popularity Index: #1 of 5 attractions in Groton

The home of the world's first nuclear submarine has several other exhibits on the history of submarines.

Attraction type: Maritime museum
Traveler Reviews:
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Monster Mini Golf
TripAdvisor Traveler Rating: 4 of 5 stars
TripAdvisor Popularity Index: #2 of 5 attractions in Groton
Attraction type: Game/entertainment center
Traveler Reviews:
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Fort Griswold Battlefield State Park
TripAdvisor Traveler Rating: 4 of 5 stars
TripAdvisor Popularity Index: #3 of 5 attractions in Groton
Attraction type: Historic site
Traveler Reviews:
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Elizabeth Arden Red Door Spa
TripAdvisor Traveler Rating: 2.5 of 5 stars
TripAdvisor Popularity Index: #4 of 5 attractions in Groton
Attraction type: Spa
Traveler Reviews:
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Avery Point Light

Attractively styled lighthouse which was in operation from 1944 to 1967.

Attraction type: Lighthouse
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