Weather in Nantucket in September
Nantucket, United States averages a high of 19.1°C (66.4°F) and low of 17.3°C (63.1°F) in September, with 8 rain days and 9.6 hours of daily sunshine. Travel score: 74.8/100 (Good). The best time to visit Nantucket is July.
High
19°C66°F
Low
17°C63°F
🌧️
8
rain days
☀️
9.6
hrs/day sunshine
💧
83%
humidity
75— Good
September in Nantucket is mild and mostly dry — good for most activities.
What are the average temperatures in Nantucket?
How much does it rain in Nantucket in September?
Nantucket receives an average of 102.9mm of rainfall across 8 rainy days in September. The annual total is 1200mm.
What should I pack for Nantucket in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 19°C
Recommended
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
🌬️
Windbreaker
Windy conditions (31 km/h average)
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31