Climate averages 1991–2020
Ebetsu 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 Ebetsu: daytime highs average 20.5°C and nights cool to about 13.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 138 mm of rain on roughly 14 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 33 min on an average September day.
The nearest other city in this atlas is Sapporo (17 km away). In September its highs average 20.9°C, about as warm as Ebetsu, with 155 mm of rain.
Among the 303 cities listed in Japan, Ebetsu ranks 295th of 303 for the warmest September highs and joint 7th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Ebetsu is 5.1°C cooler than that mean.
From September to October, average highs fall by 6.3°C to 14.3°C, and monthly rainfall falls from 138 mm to 87 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
Ebetsu 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-10.6°C | -10.6°C | 41 | 8.0 | 9.49 h |
| February | -2.8°C-10.1°C | -10.1°C | 39 | 8.1 | 10.510 h |
| March | 1.5°C-6.3°C | -6.3°C | 55 | 10.3 | 11.912 h |
| April | 9.4°C-0.1°C | -0.1°C | 66 | 11.1 | 13.413 h |
| May | 15.8°C6.5°C | 6.5°C | 84 | 11.3 | 14.615 h |
| June | 19.7°C11.7°C | 11.7°C | 76 | 10.1 | 15.315 h |
| July | 23.4°C16.2°C | 16.2°C | 119 | 12.2 | 15.015 h |
| August | 24.1°C17.6°C | 17.6°C | 171 | 13.2 | 13.914 h |
| September, selected | 20.5°C13.5°C | 13.5°C | 138 | 13.9 | 12.513 h |
| October | 14.3°C6.7°C | 6.7°C | 87 | 11.8 | 11.111 h |
| November | 6.6°C-0.1°C | -0.1°C | 75 | 12.6 | 9.810 h |
| December | -0.9°C-7.1°C | -7.1°C | 62 | 10.2 | 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
- Sapporo in SeptemberJapan · 17 kmHigh 20.9°C · Low 14.7°C · 155 mm rain
- Iwamizawa in SeptemberJapan · 20 kmHigh 20.8°C · Low 13.1°C · 126 mm rain
- Eniwa in SeptemberJapan · 24 kmHigh 20.4°C · Low 13.6°C · 138 mm rain
- Chitose in SeptemberJapan · 33 kmHigh 20.4°C · Low 14.2°C · 137 mm rain
- Otaru in SeptemberJapan · 45 kmHigh 20.8°C · Low 15.3°C · 149 mm rain
- Tomakomai in SeptemberJapan · 53 kmHigh 20.1°C · Low 15.1°C · 177 mm rain
- Asahikawa in SeptemberJapan · 99 kmHigh 19.8°C · Low 11.6°C · 142 mm rain
- Muroran in SeptemberJapan · 99 kmHigh 20.2°C · Low 15.6°C · 166 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 Ebetsu) is explained once on the Ebetsu year overview and on the Sources, method and limits page.
Eniwa lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.