Climate averages 1991–2020
Aomori weather
in August.
A warm, wet month: the warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Aomori: daytime highs average 26.7°C and nights cool to about 19.7°C. By daytime temperature it is the warmest month of the year.
Expect about 169 mm of rain on roughly 16 days, which makes August a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 48 min on an average August day.
The nearest other city in this atlas is Hirosaki (33 km away). In August its highs average 26.7°C, about as warm as Aomori, with 176 mm of rain.
Among the 303 cities listed in Japan, Aomori ranks joint 280th of 303 for the warmest August highs and joint 214th of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Aomori is 2.5°C cooler than that mean.
From August to September, average highs fall by 3.7°C to 22.9°C, and monthly rainfall falls from 169 mm to 145 mm.
The annual picture
August in context
Monthly precipitation
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
Aomori climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.1°C-6.3°C | -6.3°C | 65 | 13.3 | 9.610 h |
| February | 0.8°C-5.9°C | -5.9°C | 66 | 13.1 | 10.611 h |
| March | 4.7°C-3.1°C | -3.1°C | 86 | 15.1 | 11.912 h |
| April | 12.4°C2.7°C | 2.7°C | 86 | 13.5 | 13.313 h |
| May | 18.5°C8.7°C | 8.7°C | 101 | 12.9 | 14.414 h |
| June | 22.4°C13.7°C | 13.7°C | 104 | 12.4 | 15.015 h |
| July | 25.6°C18.4°C | 18.4°C | 158 | 15.3 | 14.815 h |
| August, selected | 26.7°C19.7°C | 19.7°C | 169 | 15.5 | 13.814 h |
| September | 22.9°C15.8°C | 15.8°C | 145 | 13.0 | 12.513 h |
| October | 16.6°C9.1°C | 9.1°C | 112 | 13.0 | 11.211 h |
| November | 9.5°C2.7°C | 2.7°C | 87 | 14.6 | 10.010 h |
| December | 2.6°C-3.4°C | -3.4°C | 82 | 14.6 | 9.39 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
- Hirosaki in AugustJapan · 33 kmHigh 26.7°C · Low 19.1°C · 176 mm rain
- Hachinohe in AugustJapan · 74 kmHigh 26.3°C · Low 19.6°C · 132 mm rain
- Hakodate in AugustJapan · 107 kmHigh 23.7°C · Low 19.7°C · 206 mm rain
- Morioka in AugustJapan · 129 kmHigh 25.9°C · Low 18.8°C · 137 mm rain
- Akita in AugustJapan · 133 kmHigh 26.5°C · Low 21.1°C · 203 mm rain
- Daisen in AugustJapan · 154 kmHigh 27.2°C · Low 20.0°C · 173 mm rain
- Hanamaki in AugustJapan · 163 kmHigh 26.5°C · Low 19.3°C · 141 mm rain
- Yokote in AugustJapan · 167 kmHigh 27.1°C · Low 19.9°C · 180 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 Aomori) is explained once on the Aomori year overview and on the Sources, method and limits page.