Climate averages 1991–2020
Shibata weather
in August.
A hot, very wet month: the warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Shibata: daytime highs average 28.6°C and nights cool to about 21.7°C. By daytime temperature it is the warmest month of the year.
Expect about 194 mm of rain on roughly 16 days, which makes August a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 38 min on an average August day.
The nearest other city in this atlas is Niigata (26 km away). In August its highs average 28.3°C, about as warm as Shibata, with 159 mm of rain.
Among the 303 cities listed in Japan, Shibata ranks joint 219th of 303 for the warmest August highs and joint 277th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Shibata is 0.5°C cooler than that mean.
From August to September, average highs fall by 3.9°C to 24.8°C, and monthly rainfall falls from 194 mm to 160 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
Shibata climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.1°C-2.1°C | -2.1°C | 217 | 26.8 | 9.910 h |
| February | 3.8°C-2.4°C | -2.4°C | 149 | 21.6 | 10.811 h |
| March | 7.9°C-0.3°C | -0.3°C | 145 | 20.4 | 11.912 h |
| April | 14.7°C4.8°C | 4.8°C | 115 | 14.7 | 13.213 h |
| May | 20.3°C10.5°C | 10.5°C | 123 | 13.2 | 14.214 h |
| June | 23.9°C15.6°C | 15.6°C | 155 | 13.5 | 14.715 h |
| July | 27.1°C20.4°C | 20.4°C | 274 | 18.0 | 14.515 h |
| August, selected | 28.6°C21.7°C | 21.7°C | 194 | 15.5 | 13.614 h |
| September | 24.8°C17.8°C | 17.8°C | 160 | 15.0 | 12.512 h |
| October | 18.9°C11.5°C | 11.5°C | 170 | 16.1 | 11.211 h |
| November | 12.8°C5.7°C | 5.7°C | 191 | 19.7 | 10.210 h |
| December | 6.4°C0.7°C | 0.7°C | 233 | 25.0 | 9.610 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
- Niigata in AugustJapan · 26 kmHigh 28.3°C · Low 22.7°C · 159 mm rain
- Tsubame in AugustJapan · 48 kmHigh 28.8°C · Low 22.3°C · 149 mm rain
- Sanjō in AugustJapan · 50 kmHigh 29.4°C · Low 21.8°C · 169 mm rain
- Yonezawa in AugustJapan · 69 kmHigh 27.7°C · Low 20.6°C · 183 mm rain
- Nagaoka in AugustJapan · 70 kmHigh 29.8°C · Low 21.6°C · 146 mm rain
- Aizu-Wakamatsu in AugustJapan · 74 kmHigh 27.8°C · Low 20.6°C · 132 mm rain
- Kashiwazaki in AugustJapan · 95 kmHigh 29.6°C · Low 22.0°C · 145 mm rain
- Yamagata in AugustJapan · 96 kmHigh 26.9°C · Low 19.5°C · 146 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 Shibata) is explained once on the Shibata year overview and on the Sources, method and limits page.