Climate averages 1991–2020
Chitose weather
in August.
A warm, wet month: the warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Chitose: daytime highs average 23.2°C and nights cool to about 17.8°C. By daytime temperature it is the warmest month of the year.
Expect about 162 mm of rain on roughly 12 days, which makes August a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 56 min on an average August day.
The nearest other city in this atlas is Eniwa (10 km away). In August its highs average 23.6°C, about as warm as Chitose, with 171 mm of rain.
Among the 303 cities listed in Japan, Chitose ranks 300th of 303 for the warmest August highs and joint 194th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Chitose is 6.0°C cooler than that mean.
From August to September, average highs fall by 2.8°C to 20.4°C, and monthly rainfall falls from 162 mm to 137 mm.
The annual picture
August 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
Chitose climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -2.3°C-9.6°C | -9.6°C | 36 | 6.3 | 9.49 h |
| February | -1.5°C-9.2°C | -9.2°C | 35 | 6.3 | 10.511 h |
| March | 2.6°C-5.1°C | -5.1°C | 54 | 8.9 | 11.912 h |
| April | 8.8°C0.6°C | 0.6°C | 70 | 10.5 | 13.413 h |
| May | 14.1°C6.5°C | 6.5°C | 95 | 10.7 | 14.615 h |
| June | 17.9°C11.4°C | 11.4°C | 77 | 9.3 | 15.315 h |
| July | 21.7°C15.9°C | 15.9°C | 116 | 11.9 | 15.015 h |
| August, selected | 23.2°C17.8°C | 17.8°C | 162 | 12.1 | 13.914 h |
| September | 20.4°C14.2°C | 14.2°C | 137 | 12.0 | 12.513 h |
| October | 14.5°C7.6°C | 7.6°C | 91 | 9.7 | 11.111 h |
| November | 7.3°C0.9°C | 0.9°C | 68 | 9.6 | 9.810 h |
| December | 0.5°C-5.6°C | -5.6°C | 54 | 8.1 | 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
August in nearby cities
- Eniwa in AugustJapan · 10 kmHigh 23.6°C · Low 17.4°C · 171 mm rain
- Tomakomai in AugustJapan · 21 kmHigh 22.5°C · Low 18.2°C · 197 mm rain
- Ebetsu in AugustJapan · 33 kmHigh 24.1°C · Low 17.6°C · 171 mm rain
- Sapporo in AugustJapan · 37 kmHigh 24.6°C · Low 18.5°C · 191 mm rain
- Iwamizawa in AugustJapan · 43 kmHigh 24.4°C · Low 17.5°C · 161 mm rain
- Otaru in AugustJapan · 67 kmHigh 24.4°C · Low 18.8°C · 163 mm rain
- Muroran in AugustJapan · 78 kmHigh 23.0°C · Low 18.7°C · 181 mm rain
- Asahikawa in AugustJapan · 120 kmHigh 24.1°C · Low 16.5°C · 171 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 Chitose) is explained once on the Chitose year overview and on the Sources, method and limits page.