Climate averages 1991–2020
Hadano 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 Hadano: daytime highs average 28.6°C and nights cool to about 23.4°C. By daytime temperature it is the warmest month of the year.
Expect about 154 mm of rain on roughly 14 days, which makes August a wet month (the 5th 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 Isehara (8 km away). In August its highs average 28.1°C, about as warm as Hadano, with 160 mm of rain.
Among the 303 cities listed in Japan, Hadano ranks joint 219th of 303 for the warmest August highs and joint 167th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Hadano is 0.6°C cooler than that mean.
From August to September, average highs fall by 3.2°C to 25.4°C, and monthly rainfall rises from 154 mm to 241 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
Hadano climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.3°C1.2°C | 1.2°C | 97 | 10.0 | 10.110 h |
| February | 8.9°C1.3°C | 1.3°C | 108 | 11.4 | 10.911 h |
| March | 12.2°C4.4°C | 4.4°C | 186 | 16.3 | 11.912 h |
| April | 16.8°C9.2°C | 9.2°C | 176 | 14.4 | 13.113 h |
| May | 21.0°C14.1°C | 14.1°C | 181 | 13.5 | 14.014 h |
| June | 23.7°C18.2°C | 18.2°C | 231 | 15.9 | 14.515 h |
| July | 27.5°C22.3°C | 22.3°C | 200 | 14.7 | 14.314 h |
| August, selected | 28.6°C23.4°C | 23.4°C | 154 | 13.5 | 13.513 h |
| September | 25.4°C20.3°C | 20.3°C | 241 | 15.5 | 12.412 h |
| October | 20.4°C15.0°C | 15.0°C | 267 | 15.5 | 11.311 h |
| November | 15.6°C9.5°C | 9.5°C | 141 | 13.1 | 10.310 h |
| December | 10.8°C4.2°C | 4.2°C | 94 | 10.9 | 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
- Isehara in AugustJapan · 8 kmHigh 28.1°C · Low 23.5°C · 160 mm rain
- Hiratsuka in AugustJapan · 11 kmHigh 27.5°C · Low 23.4°C · 154 mm rain
- Odawara in AugustJapan · 14 kmHigh 29.4°C · Low 23.9°C · 154 mm rain
- Atsugi in AugustJapan · 15 kmHigh 27.6°C · Low 23.3°C · 160 mm rain
- Chigasaki in AugustJapan · 17 kmHigh 27.5°C · Low 23.7°C · 125 mm rain
- Sagamihara in AugustJapan · 22 kmHigh 28.5°C · Low 22.2°C · 160 mm rain
- Fujisawa in AugustJapan · 23 kmHigh 27.4°C · Low 23.8°C · 125 mm rain
- Minamirinkan in AugustJapan · 24 kmHigh 28.0°C · Low 22.7°C · 125 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 Hadano) is explained once on the Hadano year overview and on the Sources, method and limits page.
Hiratsuka and Odawara lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.