Weather in 長野 in 9月
Climate normals based on 10 years of historical data for 長野, 日本.
Average high
25°C
Average low
16°C
Rainfall
187 mm
15 rainy days
Sunshine
2.5h/day
湿度
82%
How Hot Is 長野 in 9月?
September keeps 長野 warm but with noticeable cooling at night: 25°C peaks, 16°C lows. That's about 4°C warmer than August and similar to what 長野 sees in October.
Sunshine Hours in 9月
Persistent cloud limits 長野 to about 2.5h of sun a day in September.
Does It Rain In 長野 In 9月?
Plan for rain — 長野 sees 187mm across 15 days in September.
Is 長野 Humid In 9月?
Air feels constantly thick in 長野: 82% humidity is the norm in September.
Wind In 長野 In 9月
Air stays mostly still in 長野: 9 kph on average in September.
Cloud Cover In 長野 In 9月
Cloudy skies dominate 長野 in September — averaging 70% cloud cover.
Cities With Similar Weather In 9月
Weather in 長野, month by month
| Month | High / Low | 雨 | |
|---|---|---|---|
| 1月の天気 | 3°C / -5°C | 125mm | Details → |
| 2月の天気 | 5°C / -5°C | 96mm | Details → |
| 3月の天気 | 10°C / -1°C | 118mm | Details → |
| 4月の天気 | 16°C / 4°C | 124mm | Details → |
| 5月の天気 | 22°C / 9°C | 136mm | Details → |
| 6月の天気 | 25°C / 14°C | 152mm | Details → |
| 7月の天気 | 28°C / 19°C | 252mm | Details → |
| 8月の天気 | 30°C / 20°C | 167mm | Details → |
| 9月の天気 | 25°C / 16°C | 187mm | |
| 10月の天気 | 19°C / 8°C | 164mm | Details → |
| 11月の天気 | 13°C / 3°C | 104mm | Details → |
| 12月の天気 | 7°C / -2°C | 131mm | Details → |