Nagaoka in September
6.9out of 10
Possible, with caveats
Warm and comfortable: highs around 27°C. Frequent rain: about 14 rainy days.
27°CAvg high
19°CAvg low
14Rainy days (143 mm)
12:14 hDaylight
05:32Sunrise · 17:46 Sunset
Why this score
- Warm and comfortable: highs around 27°C
- Frequent rain: about 14 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 (±3.1 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 | 5°C | 0°C | 180 mm | 25 | – | – | 3.2 |
| February | 6°C | 0°C | 127 mm | 20 | – | – | 3.4 |
| March | 10°C | 2°C | 125 mm | 19 | – | – | 4.4 |
| April | 16°C | 7°C | 95 mm | 14 | – | – | 6.2 |
| May | 22°C | 13°C | 93 mm | 12 | – | – | 7.4 |
| June | 26°C | 18°C | 118 mm | 13 | – | – | 7.2 |
| July | 29°C | 22°C | 205 mm | 16 | – | – | 6.3 |
| August | 31°C | 23°C | 147 mm | 14 | – | – | 6.3 |
| September | 27°C | 19°C | 143 mm | 14 | – | – | 6.9 |
| October | 20°C | 13°C | 143 mm | 15 | – | – | 6.6 |
| November | 14°C | 7°C | 144 mm | 19 | – | – | 5.0 |
| December | 8°C | 2°C | 182 mm | 23 | – | – | 3.8 |
Frequently asked questions
How hot is Nagaoka in September?
Daytime highs average 27°C and nights about 19°C.
When is the best time to visit Nagaoka?
The best months are May, June, September.