Sapporo weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Sapporo September weather at a glance
In September, Sapporo averages 18.5°C, with typical highs of 23.2°C and lows of 13.9°C. The historical average is 10 wet days and 78% humidity.
Sapporo September temperature & humidity
Sapporo September rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Sapporo in September
T-shirts or long sleeves with one light outer layer should be comfortable. Showers are possible, so a compact umbrella is useful.
- DaytimeLong sleeves and a light jacket · average high 23.2°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 13.9°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Sapporo September sunrise & sunset times
2026 September · Local time (Asia/Tokyo)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 04:58 | 18:10 | 13h 12m |
| 2026-09-15 | 05:14 | 17:46 | 12h 32m |
| 2026-09-30 | 05:30 | 17:19 | 11h 48m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Sapporo travel updates
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Today’s weather and forecast
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Forecast · Windy. Monthly averages are in the Temperature section.
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Sapporo travel essentials
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Best months to visit Sapporo
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Sapporo weather like in September?
In September, Sapporo averages 18.5°C, with typical highs of 23.2°C and lows of 13.9°C. The historical average is 10 wet days and 78% humidity. Our weather-comfort rating for this month is good.
Does it rain a lot in Sapporo in September?
There are about 10 wet days in September. A compact umbrella is still useful.
What should I wear in Sapporo in September?
T-shirts or long sleeves with one light outer layer should be comfortable. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Sapporo?
Recent weather data rates September among the more comfortable months.
Where can I check Sapporo weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Sapporo in September?
On 2026-09-15, calculated sunrise is 05:14 and sunset is 17:46 in local time (Asia/Tokyo). Times vary by date and terrain.
Sapporo weather by month
More Japan destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations