Weather in Plymouth in September
Plymouth, United States averages a high of 22.1°C (71.8°F) and low of 13.7°C (56.7°F) in September, with 9 rain days and 9.7 hours of daily sunshine. Travel score: 81.8/100 (Excellent). The best time to visit Plymouth is July.
High
22°C72°F
Low
14°C57°F
🌧️
9
rain days
☀️
9.7
hrs/day sunshine
💧
69%
humidity
82— Excellent
September in Plymouth is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Plymouth?
How much does it rain in Plymouth in September?
Plymouth receives an average of 77.4mm of rainfall across 9 rainy days in September. The annual total is 798.5mm.
What should I pack for Plymouth in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 22°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
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Data based on 1994–2024 averages · Last updated: 2024-12-31