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Town of Shelter Island

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Town of Shelter Island Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Town of Shelter Island year round climate

  • Spring (March–May): Average 41–57°F, mild climate, but occasional showers are possible, with increasing sunshine hours. Common activities: Hiking, birdwatching, cycling. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 66–73°F, warm and humid, with occasional showers or thunderstorms. Common activities: Swimming, boating, beach activities. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 46–64°F, pleasant climate, but September has higher rainfall, with decreasing sunshine hours. Common activities: Viewing autumn leaves, outdoor walks, seaside strolls. Recommended clothing: Comfortable long-sleeved shirts, light jacket, warm clothing.
  • Winter (December–February): Average 33–41°F, cold and humid, with higher chances of rain and snow. Common activities: Indoor activities, museum visits. Recommended clothing: Warm coat, sweater, scarf, hat, gloves.

Town of Shelter Island climatological average

Annual average temperature: approx. 52.7°F / Annual rainfall: approx. 1984 mm / Summer humidity: 65%–75% / Rainiest month: September

Town of Shelter Island monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
34.5°F
189.3
February
35.1°F
110.1
March
41°F
160.9
April
48.2°F
124.1
May
56.7°F
155.7
June
66°F
127.1
July
73.9°F
164.2
August
71.6°F
181.4
September
64.8°F
311.8
October
55.2°F
214.2
November
46.2°F
78
December
38.5°F
167.4

Town of Shelter Island weather for the next seven days

2/1
Sunday
Overcast
26.6°F/16.5°F
2/2
Monday
Overcast
35.1°F/18.7°F
2/3
Tuesday
Sunny
30.2°F/22.1°F
2/4
Wednesday
Cloudy
30.6°F/24.3°F
2/5
Thursday
Sunny
28.2°F/19.9°F
2/6
Friday
Light freezing rain
30.4°F/21.2°F
2/7
Saturday
Light snow showers
22.6°F/11.8°F