Ōmihachiman in September
6.9out of 10
Possible, with caveats
Warm and comfortable: highs around 27°C. Frequent rain: about 13 rainy days.
27°CAvg high
20°CAvg low
13Rainy days (182 mm)
12:12 hDaylight
05:44Sunrise · 17:56 Sunset
Why this score
- Warm and comfortable: highs around 27°C
- Frequent rain: about 13 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.7 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 7°C | 0°C | 82 mm | 14 | – | – | 4.6 |
| February | 7°C | 1°C | 80 mm | 13 | – | – | 4.9 |
| March | 11°C | 4°C | 114 mm | 14 | – | – | 5.4 |
| April | 17°C | 8°C | 124 mm | 12 | – | – | 6.6 |
| May | 22°C | 14°C | 147 mm | 11 | – | – | 7.3 |
| June | 25°C | 18°C | 191 mm | 14 | – | – | 6.7 |
| July | 29°C | 23°C | 205 mm | 16 | – | – | 6.3 |
| August | 31°C | 23°C | 123 mm | 12 | – | – | 6.7 |
| September | 27°C | 20°C | 182 mm | 13 | – | – | 6.9 |
| October | 21°C | 14°C | 150 mm | 11 | – | – | 7.1 |
| November | 15°C | 8°C | 79 mm | 8 | – | – | 6.9 |
| December | 9°C | 3°C | 76 mm | 12 | – | – | 5.5 |
Frequently asked questions
How hot is Ōmihachiman in September?
Daytime highs average 27°C and nights about 20°C.
When is the best time to visit Ōmihachiman?
The best months are May, October, September, November.