Hokkaido in September: temperature and snow
In a normal September, Sapporo has a mean temperature of 18.6℃ (high 22.8℃, low 14.8℃). Of the 41 places on this site, the highest average high is in Hakodate (23.2℃) and the lowest in Lake Akan (19.0℃). The lowest average low is in Kimobetsu (9.2℃).
Does it snow in Hokkaido in September?
According to the normals, snowfall and snow depth in September are 0 cm at all 41 places. Snow does not normally settle in towns.
On high mountains, the first snowcap on Mount Asahi (Asahidake) is normally seen on Sep 25 (observed from Asahikawa). The first snowcap is the first day in the season when a weather station at the foot of the mountain sees snow on the summit.
Normal dates of the first snowcap in Hokkaido
| Mountain | Normal date | Observed from |
|---|---|---|
| Mount Asahi (Asahidake) | Sep 25 | Asahikawa |
| Mount Yotei | Oct 3 (reference) | Kutchan |
| Mount Rishiri | Oct 3 | Wakkanai |
| Mount Shokanbetsu | Oct 8 (reference) | Rumoi |
| Mount Shari | Oct 14 | Abashiri |
| Mount Meakan | Oct 17 | Kushiro |
| Mount Teine | Oct 18 | Sapporo |
| Mount Tarumae | Oct 19 (reference) | Tomakomai |
| Mount Raiden | Oct 19 (reference) | Suttsu |
| Mount Yurappu | Oct 22 (reference) | Esashi |
| Mount Pisshiri | Oct 24 (reference) | Haboro |
| 当沸岳 | Oct 26 (reference) | Omu |
| Mount Rakko | Oct 27 (reference) | Hiroo |
| Mount Yokotsu | Oct 29 | Hakodate |
| Mount Washibetsu | Oct 31 | Muroran |
"Reference" marks dates that JMA lists as reference values because the station no longer makes visual observations.
Temperature in September at 41 places
| Place | Mean | Highavg. | Lowavg. | Summer days25℃+ | Precip. |
|---|---|---|---|---|---|
| Ishikari region | |||||
| Sapporo | 18.6℃ | 22.8℃ | 14.8℃ | 7.5 | 142.2mm |
| Chitose | 17.4℃ | 22.5℃ | 12.5℃ | 5.9 | 140.5mm |
| Eniwa (Shimamatsu) | 16.8℃ | 21.9℃ | 11.8℃ | 5.3 | 152.1mm |
| Ishikari | 17.2℃ | 22.1℃ | 12.7℃ | 5.5 | 123.7mm |
| Koganeyu (Jozankei) | ― | ― | ― | ― | 148.1mm |
| Sorachi region | |||||
| Iwamizawa | 17.4℃ | 22.4℃ | 12.9℃ | 6.9 | 142.2mm |
| Bibai | 16.9℃ | 22.6℃ | 11.8℃ | 7.3 | 144.2mm |
| Takikawa | 16.3℃ | 22.0℃ | 11.5℃ | 6.2 | 152.3mm |
| Shiribeshi region | |||||
| Otaru | 18.1℃ | 22.3℃ | 14.3℃ | 5.5 | 131.7mm |
| Kutchan | 16.4℃ | 21.7℃ | 11.3℃ | 4.9 | 133.3mm |
| Suttsu | 18.1℃ | 21.6℃ | 14.6℃ | 3.3 | 149.8mm |
| Kimobetsu | 15.0℃ | 21.0℃ | 9.2℃ | 3.7 | 140.3mm |
| Iburi region | |||||
| Muroran | 18.4℃ | 21.5℃ | 15.7℃ | 3.1 | 156.6mm |
| Noboribetsu | 16.7℃ | 20.9℃ | 12.8℃ | 2.8 | 259.3mm |
| Tomakomai | 17.8℃ | 21.7℃ | 13.8℃ | 3.3 | 174.9mm |
| Hidaka region | |||||
| Urakawa | 17.7℃ | 21.4℃ | 14.4℃ | 2.7 | 144.4mm |
| Oshima region | |||||
| Hakodate | 18.8℃ | 23.2℃ | 14.6℃ | 8.0 | 150.5mm |
| Hiyama region | |||||
| Esashi | 19.5℃ | 23.0℃ | 15.9℃ | 6.4 | 135.6mm |
| Kamikawa region | |||||
| Asahikawa | 16.4℃ | 21.9℃ | 11.7℃ | 6.1 | 136.3mm |
| Furano | 16.1℃ | 21.9℃ | 11.1℃ | 6.2 | 147.3mm |
| Biei | 15.2℃ | 21.3℃ | 9.8℃ | 5.2 | 129.0mm |
| Nayoro | 15.2℃ | 21.4℃ | 9.9℃ | 5.1 | 138.1mm |
| Shimukappu (Tomamu) | 14.6℃ | 20.6℃ | 9.8℃ | 3.8 | 167.3mm |
| Sounkyo | ― | ― | ― | ― | 153.0mm |
| Rumoi region | |||||
| Rumoi | 17.2℃ | 21.4℃ | 13.1℃ | 3.5 | 145.4mm |
| Haboro | 17.4℃ | 21.6℃ | 12.8℃ | 3.5 | 143.8mm |
| Soya region | |||||
| Wakkanai | 17.2℃ | 20.1℃ | 14.4℃ | 1.2 | 136.7mm |
| Esashi (Kitami-Esashi) | 16.5℃ | 20.5℃ | 12.8℃ | 3.1 | 134.9mm |
| Okhotsk region | |||||
| Abashiri | 16.8℃ | 20.7℃ | 13.4℃ | 3.9 | 115.0mm |
| Mombetsu | 16.6℃ | 20.7℃ | 12.8℃ | 3.7 | 127.6mm |
| Omu | 16.0℃ | 20.5℃ | 11.2℃ | 3.3 | 137.2mm |
| Kitami | 16.2℃ | 21.7℃ | 11.3℃ | 6.4 | 111.8mm |
| Memanbetsu | 16.5℃ | 21.9℃ | 11.5℃ | 6.4 | 89.4mm |
| Utoro (Shiretoko) | 15.6℃ | 20.2℃ | 11.4℃ | 3.8 | 143.5mm |
| Tokachi region | |||||
| Obihiro | 16.9℃ | 22.0℃ | 12.7℃ | 7.2 | 140.2mm |
| Hiroo | 16.6℃ | 20.3℃ | 13.1℃ | 3.4 | 262.6mm |
| Kushiro region | |||||
| Kushiro | 16.5℃ | 20.1℃ | 12.9℃ | 1.2 | 153.0mm |
| Lake Akan | 14.0℃ | 19.0℃ | 9.3℃ | 2.2 | 165.7mm |
| Kawayu (Teshikaga) | 14.6℃ | 20.0℃ | 9.5℃ | 3.0 | 137.0mm |
| Nemuro region | |||||
| Nemuro | 16.2℃ | 19.4℃ | 13.6℃ | 1.5 | 160.0mm |
| Nakashibetsu | 15.7℃ | 20.6℃ | 11.0℃ | 4.2 | 177.2mm |
JMA normals (1991–2020). Summer days are days with a high of 25℃ or more. Tap a place for its snow and 12-month temperature page.
Sources
- Japan Meteorological Agency (JMA), Climatological Normals 1991–2020 (in Japanese) (monthly and seasonal normals)