Shelter Island (NY) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Shelter Island.
Climate overview of Shelter Island
Shelter Island, New York State, United States of America, sees big temperature differences between seasons, with July peaking at 27°C (81°F) and February dropping to 4°C (39°F).
With around 1218 mm (48 in) of annual rain/snowfall, Shelter Island has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and cold winters. The wettest month is December.
Shelter Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Shelter Island - and find the best time to visit.
Monthly Temperature in Shelter Island
Visitors to Shelter Island can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In February, the coolest month of the year, temperatures drop to a chilly 4°C (39°F).
At night, temperatures range from around 19°C (66°F) in July to -4°C (25°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Shelter Island
Shelter Island is known for its substantial rain/snowfall, with annual precipitation reaching 1218 mm (48 in). Despite minor fluctuations, Shelter Island enjoys fairly consistent precipitation throughout the year. In December, you can expect around 129 mm (5.1 in) of precipitation, while in November, Shelter Island receives about 86 mm (3.4 in). For more details, please visit our Shelter Island Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Shelter Island
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: February, with freezing nights around -4°C (25°F).
Frequently asked questions about the climate in Shelter Island
What is the best time to visit Shelter Island?
July and August typically offer the most optimal weather in Shelter Island. In contrast, January, February, March and December tend to have less optimal conditions. Shelter Island has warm summers and cold winters.
What temperatures can I expect in Shelter Island?
Daytime highs range from 4°C (39°F) in February to 27°C (81°F) in July. Nighttime lows range from -4°C (25°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Shelter Island get?
Annual rainfall is around 1218 mm (48 in). December is the wettest month with 129 mm (5.1 in), while November is the driest with 86 mm (3.4 in).
Shelter Island 3-Day Forecast
Shelter Island (NY) 3-Day Forecast
Shelter Island on the map
Shelter Island is highlighted - select any city to see its climate.
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