Aomori weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: May – October
What is the weather like in Aomori in October?
In October, Aomori is mild: daytime highs average 17 °C, and nights cool down to about 9 °C. The sea averages 19.4 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 107 mm in total. All in all, October is a good month for a holiday in Aomori.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 72 | 62 | 15 |
| Day | 23° | 17° | 10° |
| Night | 16° | 9° | 3° |
| Sea | 23° | 19° | 15° |
| Sun | 5 h | 5 h | 3 h |
| Rain days | 12 | 12 | 15 |
More details for October
- Daylight
- 11 h 12 min05:47 – 16:58
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %87 %
- Sunshineweight 20 %28 %
- Few rainy daysweight 30 %42 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Aomori in October: quick answers
Is Aomori hot in October?
No. In October, Aomori is mild: daytime highs average 17 °C and nights drop to about 9 °C.
Can you swim in Aomori in October?
Only if you don't mind cold water: in October the sea averages just 19.4 °C. Comfortable swimming is possible from August to September.
Does it rain much in Aomori in October?
Rain is frequent, with about 12 rainy days and 107 mm in total.
Aomori month by month
The whole year in AomoriAll destinations: JapanWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences