Climate averages 1991–2020
Youkaichi weather
in August.
A hot, wet month: the warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Youkaichi: daytime highs average 30.1°C and nights cool to about 22.9°C. By daytime temperature it is the warmest month of the year.
Expect about 148 mm of rain on roughly 15 days, which makes August a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 29 min on an average August day.
The nearest other city in this atlas is Ōmihachiman (9 km away). In August its highs average 30.2°C, about as warm as Youkaichi, with 122 mm of rain.
Among the 303 cities listed in Japan, Youkaichi ranks joint 90th of 303 for the warmest August highs and joint 157th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Youkaichi is 0.9°C warmer than that mean.
From August to September, average highs fall by 3.9°C to 26.2°C, and monthly rainfall rises from 148 mm to 202 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
Youkaichi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.0°C-0.2°C | -0.2°C | 62 | 7.5 | 10.110 h |
| February | 8.0°C-0.1°C | -0.1°C | 69 | 8.7 | 10.911 h |
| March | 11.9°C2.5°C | 2.5°C | 116 | 12.1 | 11.912 h |
| April | 17.3°C7.4°C | 7.4°C | 133 | 11.4 | 13.013 h |
| May | 21.9°C12.7°C | 12.7°C | 156 | 11.5 | 14.014 h |
| June | 25.3°C17.4°C | 17.4°C | 203 | 14.8 | 14.514 h |
| July | 28.9°C21.9°C | 21.9°C | 214 | 17.7 | 14.314 h |
| August, selected | 30.1°C22.9°C | 22.9°C | 148 | 14.9 | 13.513 h |
| September | 26.2°C19.2°C | 19.2°C | 202 | 13.9 | 12.412 h |
| October | 20.6°C13.2°C | 13.2°C | 177 | 10.6 | 11.311 h |
| November | 15.1°C7.5°C | 7.5°C | 84 | 7.4 | 10.410 h |
| December | 9.6°C2.3°C | 2.3°C | 60 | 7.1 | 9.810 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
- Ōmihachiman in AugustJapan · 9 kmHigh 30.2°C · Low 22.8°C · 122 mm rain
- Kōka in AugustJapan · 16 kmHigh 30.2°C · Low 22.8°C · 148 mm rain
- Hikone in AugustJapan · 16 kmHigh 29.7°C · Low 23.1°C · 163 mm rain
- Moriyama in AugustJapan · 20 kmHigh 30.5°C · Low 23.0°C · 103 mm rain
- Kusatsu in AugustJapan · 24 kmHigh 30.8°C · Low 23.1°C · 103 mm rain
- Nagahama in AugustJapan · 30 kmHigh 29.7°C · Low 23.1°C · 173 mm rain
- Ōtsu in AugustJapan · 33 kmHigh 30.5°C · Low 22.7°C · 140 mm rain
- Iga in AugustJapan · 40 kmHigh 30.8°C · Low 23.2°C · 174 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 Youkaichi) is explained once on the Youkaichi year overview and on the Sources, method and limits page.
Kōka lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.