🧳 Packing guide
What to wear in Sapporo in September
Packing for Sapporo in September is easiest with layers: long sleeves or a T-shirt with a light jacket make a practical combination. A compact umbrella is worth carrying for passing showers or wetter days.
Travel takeaway: For many travelers, these temperatures are comfortable for city sightseeing when you pack one flexible layer.
🗓️ Travel timing at a glance
Sapporo: 12-month travel weather
Sapporo has a long snowy winter and a relatively mild summer. It is less affected by Japan’s main rainy season than cities farther south.
Monthly labels summarize typical climate patterns for trip planning. Always check the latest forecast and tropical-storm alerts before departure.
🎉 Trip planning check
Sapporo 2026 events & busy periods
Check major events, holidays and periods that may affect crowds, transport or opening hours.
🎊 September event
Sapporo Autumn Fest 2026
📅 Sep 11–Oct 3, 2026
A major outdoor food festival at Odori Park featuring flavors and specialties from across Hokkaido.
Dates, food & travel tips →⚠️ Busy / closure period
New Year holiday period
📅 Late December–early January
Some shops close for several days or reduce opening hours, while transport and accommodation demand can rise.
Check official source →Event dates, holiday schedules and opening hours can change. Recheck the linked official tourism or government source before departure.
Sapporo Weather in September
2016–2025 · 10 complete years averaged · °F
Sapporo in September · recent 3 years
Compare the most recent complete year with the two years before it. Daily high / low temperatures are shown in °F.
CalendarNo measurable rain🌧️ Rain⛈️ Thunderstorm❄️ SnowHigh / Low · °F
⭐ September 2025 · latest complete year☔ 12 days · 210.2 mm
3
🌦️
24.9°C/18.4°C
🌧️ 1.1 mm
7
🌧️
23.3°C/19.2°C
🌧️ 16.4 mm
11
🌦️
26.6°C/17.2°C
🌧️ 1.7 mm
13
🌧️
23.6°C/18.1°C
🌧️ 52.6 mm
14
🌧️
22.9°C/14.7°C
🌧️ 6.1 mm
17
🌦️
23.4°C/17.7°C
🌧️ 1.2 mm
21
🌧️
17°C/11.8°C
🌧️ 34.1 mm
25
🌧️
20°C/15.3°C
🌧️ 24.3 mm
26
🌦️
21.7°C/13.7°C
🌧️ 1.5 mm
September 2024☔ 7 days · 67.7 mm
6
🌧️
23.9°C/13.4°C
🌧️ 12.5 mm
11
🌧️
22.6°C/16.3°C
🌧️ 9.7 mm
14
🌧️
21.5°C/11.4°C
🌧️ 9.2 mm
15
🌧️
18.9°C/14.3°C
🌧️ 26.7 mm
20
🌦️
21.1°C/14.7°C
🌧️ 1.9 mm
27
🌧️
22.3°C/16.8°C
🌧️ 3.6 mm
September 2023☔ 18 days · 158.5 mm
4
🌧️
27.2°C/17.5°C
🌧️ 8.9 mm
6
🌦️
25.9°C/20.1°C
🌧️ 1.4 mm
9
🌦️
25.3°C/19.3°C
🌧️ 1.9 mm
11
🌧️
25.3°C/21.2°C
🌧️ 1.5 mm
12
🌧️
26.6°C/22.8°C
🌧️ 19.8 mm
13
🌧️
25.3°C/20.3°C
🌧️ 2.4 mm
14
🌧️
21.8°C/18.6°C
🌧️ 33.4 mm
17
🌧️
25.6°C/14.5°C
🌧️ 14.4 mm
18
🌦️
28.2°C/20.8°C
🌧️ 5.9 mm
19
🌧️
23.5°C/18.9°C
🌧️ 7.3 mm
20
🌦️
21.7°C/13.9°C
🌧️ 2.8 mm
27
🌦️
23.4°C/13.7°C
🌧️ 1.3 mm
28
🌧️
19.6°C/14°C
🌧️ 16.5 mm
Historical calendars use Open-Meteo reanalysis data. A rainy day is counted when daily precipitation is at least 1 mm. Conditions at a specific hotel, beach or station can differ.
✈️ Traveling soon?
Current Sapporo weather and 7-day forecast
When departure is close, the latest forecast matters more than long-term averages.
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Sapporo weather in other months
Switch months to compare the seasonal pattern.