Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Shelter Island Weather in September
September in Shelter Island brings high temperatures, with highs of 23°C (73°F) and nights dropping to 15°C (59°F). Rainfall is on the higher side this month, averaging around 109 mm (4.3 in), so keep a rain jacket handy.
Rainfall in Shelter Island in September
Looking at the last 30 years, the data shows about 9 days with rain, averaging 109 mm (4.3 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Shelter Island in September
September in Shelter Island brings typical temperatures with highs around 23°C (73°F) and lows of 15°C (59°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Shelter Island.
Shelter Island Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
23°C (73°F)
Chance of Rain
30%
Precipitation
109 mm (4.3 in)
Rainy days
9 days
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.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Shelter Island in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags.
What To Do in Shelter Island in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Shelter Island 3-Day Forecast
More climate data for Shelter Island
See the full Shelter Island climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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