Climate averages 1991–2020
Nagano weather
in February.
A cold, wet month: the 11th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
February is a cold month in Nagano: daytime highs average 3.2°C and nights cool to about -4.4°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 121 mm of rain on roughly 19 days, which makes February a wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 49 min on an average February day.
The nearest other city in this atlas is Ueda (29 km away). In February its highs average 4.5°C, 1.4°C warmer than Nagano, with 85 mm of rain.
Among the 303 cities listed in Japan, Nagano ranks 273rd of 303 for the warmest February highs and 281st of 303 for the driest February (rainfall, lowest first). The mean February high of those 303 cities is 7.9°C; Nagano is 4.7°C cooler than that mean.
From February to March, average highs rise by 3.9°C to 7.1°C, and monthly rainfall rises from 121 mm to 138 mm.
The annual picture
February 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, selected | 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 | 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
February in nearby cities
- Ueda in FebruaryJapan · 29 kmHigh 4.5°C · Low -4.4°C · 85 mm rain
- Azumino in FebruaryJapan · 48 kmHigh 2.9°C · Low -5.8°C · 100 mm rain
- Matsumoto in FebruaryJapan · 50 kmHigh 3.5°C · Low -5.7°C · 100 mm rain
- Saku in FebruaryJapan · 55 kmHigh 4.8°C · Low -4.4°C · 58 mm rain
- Jōetsu in FebruaryJapan · 56 kmHigh 4.6°C · Low -1.3°C · 179 mm rain
- Shibukawa in FebruaryJapan · 75 kmHigh 6.1°C · Low -3.2°C · 69 mm rain
- Takasaki in FebruaryJapan · 82 kmHigh 7.7°C · Low -2.4°C · 72 mm rain
- Maebashi in FebruaryJapan · 85 kmHigh 7.5°C · Low -2.1°C · 69 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.