Climate averages 1991–2020
Nagano weather
in June.
A warm, wet month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Nagano: daytime highs average 23.7°C and nights cool to about 14.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 178 mm of rain on roughly 18 days, which makes June a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 37 min on an average June day.
The nearest other city in this atlas is Ueda (29 km away). In June its highs average 24.1°C, about as warm as Nagano, with 168 mm of rain.
Among the 303 cities listed in Japan, Nagano ranks joint 226th of 303 for the warmest June highs and joint 123rd of 303 for the driest June (rainfall, lowest first). The mean June high of those 303 cities is 24.4°C; Nagano is 0.7°C cooler than that mean.
From June to July, average highs rise by 3.2°C to 26.9°C, and monthly rainfall rises from 178 mm to 243 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Nagano climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.1°C-4.7°C | -4.7°C | 148 | 22.8 | 10.010 h |
| February | 3.2°C-4.4°C | -4.4°C | 121 | 19.1 | 10.811 h |
| March | 7.1°C-1.5°C | -1.5°C | 138 | 18.6 | 11.912 h |
| April | 13.9°C3.2°C | 3.2°C | 115 | 14.6 | 13.113 h |
| May | 20.6°C9.7°C | 9.7°C | 133 | 14.7 | 14.114 h |
| June, selected | 23.7°C14.7°C | 14.7°C | 178 | 18.1 | 14.615 h |
| July | 26.9°C19.0°C | 19.0°C | 243 | 21.7 | 14.414 h |
| August | 28.1°C19.9°C | 19.9°C | 169 | 19.5 | 13.614 h |
| September | 23.9°C15.9°C | 15.9°C | 182 | 17.0 | 12.412 h |
| October | 18.0°C9.5°C | 9.5°C | 161 | 15.6 | 11.311 h |
| November | 12.0°C3.2°C | 3.2°C | 116 | 16.4 | 10.310 h |
| December | 5.3°C-2.3°C | -2.3°C | 138 | 20.4 | 9.710 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Ueda in JuneJapan · 29 kmHigh 24.1°C · Low 15.1°C · 168 mm rain
- Azumino in JuneJapan · 48 kmHigh 23.9°C · Low 15.2°C · 224 mm rain
- Matsumoto in JuneJapan · 50 kmHigh 23.8°C · Low 15.0°C · 224 mm rain
- Saku in JuneJapan · 55 kmHigh 23.4°C · Low 15.3°C · 197 mm rain
- Jōetsu in JuneJapan · 56 kmHigh 24.4°C · Low 16.4°C · 115 mm rain
- Shibukawa in JuneJapan · 75 kmHigh 23.7°C · Low 16.2°C · 178 mm rain
- Takasaki in JuneJapan · 82 kmHigh 23.4°C · Low 15.7°C · 239 mm rain
- Maebashi in JuneJapan · 85 kmHigh 23.8°C · Low 16.2°C · 178 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Nagano) is explained once on the Nagano year overview and on the Sources, method and limits page.