Climate averages 1991–2020
Obihiro weather
in September.
A mild, wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Obihiro: daytime highs average 20.4°C and nights cool to about 12.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 165 mm of rain on roughly 13 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 32 min on an average September day.
The nearest other city in this atlas is Kushiro (95 km away). In September its highs average 18.6°C, 1.8°C cooler than Obihiro, with 160 mm of rain.
Among the 303 cities listed in Japan, Obihiro ranks joint 296th of 303 for the warmest September highs and joint 61st of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Obihiro is 5.2°C cooler than that mean.
From September to October, average highs fall by 5.8°C to 14.6°C, and monthly rainfall falls from 165 mm to 110 mm.
The annual picture
September in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Obihiro climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.7°C-14.8°C | -14.8°C | 53 | 6.2 | 9.49 h |
| February | -2.5°C-13.5°C | -13.5°C | 42 | 6.5 | 10.510 h |
| March | 2.2°C-7.5°C | -7.5°C | 68 | 9.3 | 11.912 h |
| April | 9.3°C-1.1°C | -1.1°C | 84 | 10.4 | 13.413 h |
| May | 16.3°C5.8°C | 5.8°C | 107 | 11.3 | 14.615 h |
| June | 19.5°C10.8°C | 10.8°C | 98 | 11.0 | 15.315 h |
| July | 22.8°C15.2°C | 15.2°C | 126 | 12.8 | 15.015 h |
| August | 23.7°C16.5°C | 16.5°C | 168 | 13.7 | 13.914 h |
| September, selected | 20.4°C12.3°C | 12.3°C | 165 | 12.8 | 12.513 h |
| October | 14.6°C4.8°C | 4.8°C | 110 | 9.6 | 11.111 h |
| November | 7.1°C-1.9°C | -1.9°C | 75 | 8.9 | 9.810 h |
| December | -0.8°C-10.6°C | -10.6°C | 68 | 7.6 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Kushiro in SeptemberJapan · 95 kmHigh 18.6°C · Low 14.0°C · 160 mm rain
- Kitami in SeptemberJapan · 113 kmHigh 20.0°C · Low 12.3°C · 122 mm rain
- Asahikawa in SeptemberJapan · 117 kmHigh 19.8°C · Low 11.6°C · 142 mm rain
- Iwamizawa in SeptemberJapan · 122 kmHigh 20.8°C · Low 13.1°C · 126 mm rain
- Chitose in SeptemberJapan · 127 kmHigh 20.4°C · Low 14.2°C · 137 mm rain
- Eniwa in SeptemberJapan · 133 kmHigh 20.4°C · Low 13.6°C · 138 mm rain
- Tomakomai in SeptemberJapan · 134 kmHigh 20.1°C · Low 15.1°C · 177 mm rain
- Ebetsu in SeptemberJapan · 136 kmHigh 20.5°C · Low 13.5°C · 138 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Obihiro) is explained once on the Obihiro year overview and on the Sources, method and limits page.