Climate averages 1991–2020
Shibukawa weather
in August.
A hot, wet month: the warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Shibukawa: daytime highs average 28.2°C and nights cool to about 21.4°C. By daytime temperature it is the warmest month of the year.
Expect about 157 mm of rain on roughly 18 days, which makes August a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 33 min on an average August day.
The nearest other city in this atlas is Maebashi (12 km away). In August its highs average 28.3°C, about as warm as Shibukawa, with 157 mm of rain.
Among the 303 cities listed in Japan, Shibukawa ranks joint 239th of 303 for the warmest August highs and joint 178th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Shibukawa is 0.9°C cooler than that mean.
From August to September, average highs fall by 3.8°C to 24.4°C, and monthly rainfall rises from 157 mm to 201 mm.
The annual picture
August in context
Monthly rainfall
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
Shibukawa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.2°C-3.3°C | -3.3°C | 68 | 11.0 | 10.010 h |
| February | 6.1°C-3.2°C | -3.2°C | 69 | 11.2 | 10.811 h |
| March | 10.2°C0.5°C | 0.5°C | 118 | 14.2 | 11.912 h |
| April | 16.3°C6.0°C | 6.0°C | 125 | 14.1 | 13.113 h |
| May | 21.0°C11.5°C | 11.5°C | 141 | 14.8 | 14.114 h |
| June | 23.7°C16.2°C | 16.2°C | 178 | 17.4 | 14.615 h |
| July | 27.3°C20.3°C | 20.3°C | 218 | 20.1 | 14.414 h |
| August, selected | 28.2°C21.4°C | 21.4°C | 157 | 18.1 | 13.514 h |
| September | 24.4°C18.0°C | 18.0°C | 201 | 17.3 | 12.412 h |
| October | 19.0°C11.9°C | 11.9°C | 180 | 14.9 | 11.311 h |
| November | 13.8°C5.7°C | 5.7°C | 74 | 9.6 | 10.310 h |
| December | 8.4°C0.4°C | 0.4°C | 59 | 10.8 | 9.710 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
- Maebashi in AugustJapan · 12 kmHigh 28.3°C · Low 21.3°C · 157 mm rain
- Takasaki in AugustJapan · 17 kmHigh 27.8°C · Low 20.9°C · 225 mm rain
- Isesaki in AugustJapan · 26 kmHigh 28.3°C · Low 21.4°C · 152 mm rain
- Kiryū in AugustJapan · 31 kmHigh 29.1°C · Low 21.9°C · 174 mm rain
- Honjō in AugustJapan · 32 kmHigh 28.6°C · Low 21.9°C · 152 mm rain
- Ōta, Japan in AugustJapan · 39 kmHigh 29.3°C · Low 22.1°C · 152 mm rain
- Kumagaya in AugustJapan · 52 kmHigh 29.8°C · Low 22.9°C · 171 mm rain
- Tatebayashi in AugustJapan · 54 kmHigh 29.5°C · Low 22.4°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 Shibukawa) is explained once on the Shibukawa year overview and on the Sources, method and limits page.
Maebashi lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.