What to wear in Hokkaido in September
In September, the average high in Sapporo is 22.8℃ and the average low is 14.8℃, 8.2℃ lower than the average high in Hong Kong. What to wear: Long-sleeved shirt, light layer.
What to wear in Sapporo in September
- Long-sleeved shirt
- Light layer
Clothing tips for September
The late-summer heat is short. Even warm days turn cold after sunset, so a light layer helps.
In September, the gap between the average high and low in Sapporo is 8.0℃. The average high is 3.6℃ lower than in August. With 142 mm of precipitation, it is the wettest month of the year.
The illustration shows how the clothes combine. The clothing list is written for Sapporo. Asahikawa is colder than Sapporo in winter, and Kushiro stays cool even in summer, with highs around 20℃. Check the temperatures in the table if you are going elsewhere.
Sapporo in early, mid and late September
The normal high falls by 4.1℃ from early to late September. Adjust what you pack to when in the month you go.
| Period | High | Low | Precipitation |
|---|---|---|---|
| Early (1st–10th) | 24.9℃ | 17.2℃ | 50 mm |
| Mid (11th–20th) | 22.9℃ | 14.9℃ | 50 mm |
| Late (21st–end) | 20.8℃ | 12.3℃ | 43 mm |
Weather in four Hokkaido cities in September
| City | High | Low | Precipitation | Sunshine | Humidity | Days of 25℃+ |
|---|---|---|---|---|---|---|
| Sapporo | 22.8℃ | 14.8℃ | 142 mm | 159 hours | 71% | about 8 days |
| Hakodate | 23.2℃ | 14.6℃ | 150 mm | 161 hours | 76% | about 8 days |
| Asahikawa | 21.9℃ | 11.7℃ | 136 mm | 145 hours | 79% | about 6 days |
| Kushiro | 20.1℃ | 12.9℃ | 153 mm | 144 hours | 84% | about 1 day |
Days of 25℃+ are days when the high reaches 25℃ or more.
Sapporo compared with your home city in September
Average highs and lows in each city, and how Sapporo’s average high compares.
| Home city | High | Low | Sapporo’s high is |
|---|---|---|---|
| Hong Kong | 31.0℃ | 25.9℃ | 8.2℃ lower |
| Singapore | 31.5℃ | 25.4℃ | 8.7℃ lower |
| Taipei | 31.5℃ | 25.0℃ | 8.7℃ lower |
| Kaohsiung | 31.8℃ | 25.9℃ | 9.0℃ lower |
| Tokyo | 27.5℃ | 20.3℃ | 4.7℃ lower |
| Osaka | 29.5℃ | 21.9℃ | 6.7℃ lower |
Autumn in Sapporo (September to November)
- From September to November the temperature drops by 5–8℃ each month, and the gap between day and night is especially large in September and October.
- Even on warm days it can fall to around 10℃ after sunset, so a light coat helps. In October, layering a cardigan or sweater is handy, and a stole to keep your neck warm helps too.
- In November some days fall below freezing, and the first snow begins to settle.
Other months
- JanuaryWinterHigh−0.4℃Low−6.4℃Down jacket or wool coat, Knit sweater, Thermal base layer
- FebruaryWinterHigh0.4℃Low−6.2℃Down jacket or wool coat, Thick knit sweater, Thermal base layer
- MarchSpringHigh4.5℃Low−2.4℃Thermal base layer, Coat, Boots
- AprilSpringHigh11.7℃Low3.4℃Long-sleeved shirt, Light coat
- MaySpringHigh17.9℃Low9.0℃Long-sleeved shirt, Light layer, Sneakers
- JuneSummerHigh21.8℃Low13.4℃Short-sleeved top, Light layer
- JulySummerHigh25.4℃Low17.9℃Short-sleeved shirt, Sandals
- AugustSummerHigh26.4℃Low19.1℃Short-sleeved top, Shorts, Cap
- SeptemberAutumnHigh22.8℃Low14.8℃Long-sleeved shirt, Light layer
- OctoberAutumnHigh16.4℃Low8.0℃Knit sweater, Light coat
- NovemberAutumnHigh8.7℃Low1.6℃Winter coat
- DecemberWinterHigh2.0℃Low−4.0℃Coat, Knit sweater, Thermal base layer
Sources
Hokkaido, Tokyo and Osaka use Japan Meteorological Agency normals (1991–2020). Hong Kong and Singapore are 2004–2025 averages calculated from JMA world climate data. Taipei and Kaohsiung use normals (1991–2020) from Taiwan’s Central Weather Administration. Actual temperatures vary, so check the forecast before you leave. The sources below are mostly in Japanese.
Hokkaido Kurashi no Yomimono