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Sapporo weather in September 2026
Expect daytime maximum temperatures of 22°C in Sapporo, Japan in September based on long-term weather averages. There are 6 hours of sunshine per day on average with 18 days with some rainfall and typically 139 mm of rainfall in the month.
- 22°C max day temperature
22 - 6 hours of sunshine per day
- 18 days with some rainfall
18 - 13°C min night temperature
13 - 12 hours of daylight per day
12 - No heat & humidity
0 - 139 mm of monthly rainfall
139 - 6 (High) UV index
6
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The September weather guide for Japan (Sapporo) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Japan
How hot is it in Sapporo in September?
Daytime temperatures usually reach 27°C in Sapporo in September with low heat and humidity, falling to 20°C at night.
How sunny is it in Sapporo in September?
There are normally 4 hours of bright sunshine each day in Sapporo in September - that's 31% of daylight hours.
How warm is the sea around Sapporo in September?
The average sea temperature around Sapporo in September is 25°C.
Does it rain in Sapporo in September?
There are usually 19 days with some rain in Sapporo in September and the average monthly rainfall is 181mm.
What is the chance of a typhoon in Sapporo in September?
On average 1.4 days in September in Sapporo are likely to be affected by the passage of one or more tropical storms.
Sapporo September sunrise & sunset times
Browse the sunrise and sunset times for Sapporo in September 2026. Select a month to view Sapporo sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Tuesday, 1st September 2026 | 04:58 | 18:10 |
| Tuesday, 15th September 2026 | 05:14 | 17:46 |
| Wednesday, 30th September 2026 | 05:30 | 17:18 |
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