Click on a day for an hourly weather forecast
The temperatures in Aomori in September are comfortable with low of 16°C and and high up to 23°C.
You can expect rain for roughly half of the month of September in Aomori. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Aomori in September 2025.
If you’re planning to visit Aomori in the near future, we highly recommend that you review the 14 day weather forecast for Aomori before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 0° / -4° | 19 | 8 | 4 | 64 mm | Awful | Aomori in January |
| February | 1° / -4° | 16 | 7 | 5 | 60 mm | Awful | Aomori in February |
| March | 5° / -1° | 11 | 16 | 3 | 85 mm | Awful | Aomori in March |
| April | 11° / 4° | 8 | 22 | 0 | 82 mm | Bad | Aomori in April |
| May | 17° / 9° | 7 | 24 | 0 | 88 mm | Ok | Aomori in May |
| June | 21° / 13° | 6 | 24 | 0 | 93 mm | Good | Aomori in June |
| July | 25° / 18° | 10 | 21 | 0 | 142 mm | Good | Aomori in July |
| August | 26° / 20° | 10 | 21 | 0 | 200 mm | Good | Aomori in August |
| September | 23° / 16° | 8 | 22 | 0 | 134 mm | Good | Aomori in September |
| October | 17° / 10° | 8 | 23 | 0 | 122 mm | Ok | Aomori in October |
| November | 10° / 5° | 9 | 20 | 0 | 95 mm | Bad | Aomori in November |
| December | 3° / -1° | 17 | 11 | 3 | 98 mm | Awful | Aomori in December |