Weather in Somerville in September
Somerville, United States averages a high of 22.6°C (72.7°F) and low of 14.3°C (57.7°F) in September, with 8 rain days and 9.1 hours of daily sunshine. Travel score: 79.9/100 (Good). The best time to visit Somerville is August.
High
23°C73°F
Low
14°C58°F
🌧️
8
rain days
☀️
9.1
hrs/day sunshine
💧
76%
humidity
80— Good
September in Somerville is warm and occasionally wet — good for most activities.
What are the average temperatures in Somerville?
How much does it rain in Somerville in September?
Somerville receives an average of 93.5mm of rainfall across 8 rainy days in September. The annual total is 1131.5mm.
What should I pack for Somerville in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 23°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (8 days)
☔
Umbrella
Be prepared for occasional showers
🎉Visiting United States in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31