Climate averages 1991–2020
Kashiwazaki weather
in August.
A hot, wet month: the warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Kashiwazaki: daytime highs average 29.6°C and nights cool to about 22.0°C. By daytime temperature it is the warmest month of the year.
Expect about 145 mm of rain on roughly 15 days, which makes August a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 36 min on an average August day.
The nearest other city in this atlas is Nagaoka (28 km away). In August its highs average 29.8°C, about as warm as Kashiwazaki, with 146 mm of rain.
Among the 303 cities listed in Japan, Kashiwazaki ranks joint 147th of 303 for the warmest August highs and joint 144th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Kashiwazaki is 0.5°C warmer than that mean.
From August to September, average highs fall by 4.2°C to 25.4°C, and monthly rainfall rises from 145 mm to 163 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
Kashiwazaki climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.1°C-1.6°C | -1.6°C | 216 | 25.6 | 9.910 h |
| February | 4.5°C-1.9°C | -1.9°C | 157 | 21.3 | 10.811 h |
| March | 8.8°C0.2°C | 0.2°C | 142 | 20.0 | 11.912 h |
| April | 15.6°C5.4°C | 5.4°C | 104 | 14.5 | 13.113 h |
| May | 21.2°C11.1°C | 11.1°C | 104 | 12.9 | 14.214 h |
| June | 24.8°C16.1°C | 16.1°C | 126 | 13.5 | 14.715 h |
| July | 28.0°C20.7°C | 20.7°C | 212 | 16.9 | 14.514 h |
| August, selected | 29.6°C22.0°C | 22.0°C | 145 | 14.5 | 13.614 h |
| September | 25.4°C18.2°C | 18.2°C | 163 | 14.9 | 12.512 h |
| October | 19.5°C12.0°C | 12.0°C | 159 | 15.3 | 11.311 h |
| November | 13.5°C6.0°C | 6.0°C | 159 | 18.2 | 10.210 h |
| December | 7.4°C0.8°C | 0.8°C | 208 | 23.7 | 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
- Nagaoka in AugustJapan · 28 kmHigh 29.8°C · Low 21.6°C · 146 mm rain
- Jōetsu in AugustJapan · 37 kmHigh 29.3°C · Low 22.2°C · 122 mm rain
- Sanjō in AugustJapan · 45 kmHigh 29.4°C · Low 21.8°C · 169 mm rain
- Tsubame in AugustJapan · 47 kmHigh 28.8°C · Low 22.3°C · 149 mm rain
- Niigata in AugustJapan · 75 kmHigh 28.3°C · Low 22.7°C · 159 mm rain
- Nagano in AugustJapan · 86 kmHigh 28.1°C · Low 19.9°C · 169 mm rain
- Shibata in AugustJapan · 95 kmHigh 28.6°C · Low 21.7°C · 194 mm rain
- Shibukawa in AugustJapan · 106 kmHigh 28.2°C · Low 21.4°C · 157 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 Kashiwazaki) is explained once on the Kashiwazaki year overview and on the Sources, method and limits page.