Weather in Brookline in September
Brookline, United States averages a high of 22.6°C (72.7°F) and low of 14.6°C (58.3°F) in September, with 8 rain days and 9.1 hours of daily sunshine. Travel score: 80.4/100 (Excellent). The best time to visit Brookline is August.
High
23°C73°F
Low
15°C58°F
🌧️
8
rain days
☀️
9.1
hrs/day sunshine
💧
76%
humidity
80— Excellent
September in Brookline is warm and mostly dry — excellent conditions for exploring.
What are the average temperatures in Brookline?
How much does it rain in Brookline in September?
Brookline receives an average of 92mm of rainfall across 8 rainy days in September. The annual total is 1115.2mm.
What should I pack for Brookline 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
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