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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 5–14°C, 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 19–23°C, 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 8–18°C, 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 1–5°C, 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. 11.5°C / Annual rainfall: approx. 1984 mm / Summer humidity: 65%–75% / Rainiest month: September

Town of Shelter Island monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
1.4°C
189.3
February
1.7°C
110.1
March
5°C
160.9
April
9°C
124.1
May
13.7°C
155.7
June
18.9°C
127.1
July
23.3°C
164.2
August
22°C
181.4
September
18.2°C
311.8
October
12.9°C
214.2
November
7.9°C
78
December
3.6°C
167.4

Town of Shelter Island weather for the next seven days

12/16
Tuesday
Sunny
4.3°C/-2.2°C
12/17
Wednesday
Partly Cloudy
8.2°C/1.9°C
12/18
Thursday
Overcast
9°C/2.9°C
12/19
Friday
Moderate rain
13°C/-0.5°C
12/20
Saturday
Sunny
1.3°C/-1.1°C
12/21
Sunday
Sunny
6.9°C/2.9°C
12/22
Monday
Partly Cloudy
1.2°C/-0.5°C

Town of Shelter Island Frequently Asked Questions and Useful Information for Travel

How to get around on Shelter Island?

While the island is small, if you really want to explore, you'll need a car. You can check out information on rentals. If you just want to relax at your hotel, you can arrange for a pickup at the ferry, or get a taxi by calling local services.

Are there Ubers on Shelter Island?

Yes, the Uber app gives you the power to request a ride to get around Shelter Island anytime, 24/7.

Is there anything to do on Shelter Island?

On Shelter Island, you can enjoy pristine beaches, bike around the island, explore nature at the Mashomack Preserve, and visit historical sites. Activities also include kayaking, dining and shopping, boat cruises, and relaxing at waterfront spots.

Do you need reservations for the Shelter Island ferry?

No reservations are needed for the Shelter Island ferry. Just drive or walk up and hop on the next ferry. The ferry runs every 10–20 minutes, year-round, and the ride is super quick, approximately 8 minutes across Shelter Island Sound.

What are the best outdoor activities in the Town of Shelter Island?

Outdoor activities in the Town of Shelter Island include exploring beautiful beaches such as Wades Beach and Crescent Beach, hiking and biking the trails at Mashomack Preserve, and enjoying water sports like kayaking, paddleboarding, and swimming in the calm waters.