Click on a day for an hourly weather forecast
The temperatures in Kushiro in September are usually low and can range between 13°C and 20°C.
You can expect about 3 to 8 days of rain in Kushiro during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Kushiro in September 2025.
If you’re planning to visit Kushiro in the near future, we highly recommend that you review the 14 day weather forecast for Kushiro before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -8° | 6 | 20 | 5 | 48 mm | Awful | Kushiro in January |
| February | -2° / -9° | 7 | 17 | 4 | 44 mm | Awful | Kushiro in February |
| March | 2° / -4° | 8 | 17 | 5 | 89 mm | Awful | Kushiro in March |
| April | 8° / 1° | 7 | 21 | 2 | 111 mm | Awful | Kushiro in April |
| May | 13° / 6° | 7 | 24 | 0 | 110 mm | Bad | Kushiro in May |
| June | 16° / 10° | 6 | 24 | 0 | 115 mm | Good | Kushiro in June |
| July | 20° / 14° | 7 | 24 | 0 | 146 mm | Ok | Kushiro in July |
| August | 22° / 16° | 9 | 22 | 0 | 196 mm | Ok | Kushiro in August |
| September | 20° / 13° | 7 | 23 | 0 | 167 mm | Ok | Kushiro in September |
| October | 14° / 7° | 7 | 24 | 0 | 169 mm | Ok | Kushiro in October |
| November | 8° / 2° | 6 | 23 | 1 | 97 mm | Ok | Kushiro in November |
| December | 1° / -4° | 7 | 20 | 4 | 90 mm | Awful | Kushiro in December |