Weather in Tomakomai in September
Tomakomai, Japan averages a high of 20.5°C (68.9°F) and low of 15.2°C (59.4°F) in September, with 14 rain days and 8.4 hours of daily sunshine. Travel score: 68.7/100 (Good). The best time to visit Tomakomai is July.
High
21°C69°F
Low
15°C59°F
🌧️
14
rain days
☀️
8.4
hrs/day sunshine
💧
82%
humidity
69— Good
September in Tomakomai is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Tomakomai?
How much does it rain in Tomakomai in September?
Tomakomai receives an average of 174.3mm of rainfall across 14 rainy days in September. The annual total is 1213mm.
What should I pack for Tomakomai in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 21°C
🧴
Sunscreen SPF 30+
8 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (14 days)
☔
Umbrella
Be prepared for occasional showers
🎉Visiting Japan 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