Climate averages 1991–2020
Ichinomiya weather
in August.
A hot, very 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 Ichinomiya: daytime highs average 30.3°C and nights cool to about 22.8°C. By daytime temperature it is the warmest month of the year.
Expect about 181 mm of rain on roughly 15 days, which makes August a very wet month (the 8th 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 Komaki (11 km away). In August its highs average 30.5°C, about as warm as Ichinomiya, with 111 mm of rain.
Among the 303 cities listed in Japan, Ichinomiya ranks joint 71st of 303 for the warmest August highs and joint 257th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Ichinomiya is 1.2°C warmer than that mean.
From August to September, average highs fall by 3.7°C to 26.7°C, and monthly rainfall rises from 181 mm to 248 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
Ichinomiya climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.7°C-1.1°C | -1.1°C | 63 | 6.9 | 10.110 h |
| February | 8.9°C-1.0°C | -1.0°C | 70 | 7.3 | 10.911 h |
| March | 12.7°C1.9°C | 1.9°C | 127 | 10.7 | 11.912 h |
| April | 17.9°C7.0°C | 7.0°C | 147 | 11.2 | 13.113 h |
| May | 22.4°C12.3°C | 12.3°C | 176 | 11.9 | 14.014 h |
| June | 25.6°C17.4°C | 17.4°C | 222 | 15.1 | 14.514 h |
| July | 29.0°C21.7°C | 21.7°C | 276 | 18.4 | 14.314 h |
| August, selected | 30.3°C22.8°C | 22.8°C | 181 | 15.4 | 13.513 h |
| September | 26.7°C19.1°C | 19.1°C | 248 | 14.0 | 12.412 h |
| October | 21.2°C12.7°C | 12.7°C | 192 | 11.3 | 11.311 h |
| November | 15.5°C6.5°C | 6.5°C | 99 | 7.6 | 10.310 h |
| December | 10.1°C1.3°C | 1.3°C | 65 | 6.8 | 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
- Komaki in AugustJapan · 11 kmHigh 30.5°C · Low 22.8°C · 111 mm rain
- Ama in AugustJapan · 13 kmHigh 30.6°C · Low 23.3°C · 181 mm rain
- Gifu in AugustJapan · 14 kmHigh 30.0°C · Low 22.4°C · 228 mm rain
- Kakamigahara in AugustJapan · 14 kmHigh 30.0°C · Low 22.2°C · 228 mm rain
- Nagoya in AugustJapan · 16 kmHigh 30.7°C · Low 23.3°C · 111 mm rain
- Kasugai in AugustJapan · 17 kmHigh 30.9°C · Low 23.4°C · 111 mm rain
- Ōgaki in AugustJapan · 18 kmHigh 30.3°C · Low 23.0°C · 190 mm rain
- Sekimachi in AugustJapan · 23 kmHigh 30.2°C · Low 22.3°C · 156 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 Ichinomiya) is explained once on the Ichinomiya year overview and on the Sources, method and limits page.
Ama lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.