Weather in Martha's Vineyard in September
Martha's Vineyard, United States averages a high of 20.3°C (68.5°F) and low of 16.9°C (62.4°F) in September, with 8 rain days and 9.5 hours of daily sunshine. Travel score: 77.3/100 (Good). The best time to visit Martha's Vineyard is August.
High
20°C69°F
Low
17°C62°F
🌧️
8
rain days
☀️
9.5
hrs/day sunshine
💧
79%
humidity
77— Good
September in Martha's Vineyard is mild and occasionally wet — good for most activities.
What are the average temperatures in Martha's Vineyard?
How much does it rain in Martha's Vineyard in September?
Martha's Vineyard receives an average of 99.9mm of rainfall across 8 rainy days in September. The annual total is 1192.2mm.
What should I pack for Martha's Vineyard in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 20°C
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Sunscreen SPF 30+
10 hours of sunshine daily
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Sunglasses
Protect your eyes from bright sun
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