Climate averages 1991–2020
Nagano weather
in March.
A cold, wet month: the 9th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cold month in Nagano: daytime highs average 7.1°C and nights cool to about -1.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 138 mm of rain on roughly 19 days, which makes March a wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.
The nearest other city in this atlas is Ueda (29 km away). In March its highs average 8.8°C, 1.8°C warmer than Nagano, with 118 mm of rain.
Among the 303 cities listed in Japan, Nagano ranks joint 273rd of 303 for the warmest March highs and joint 232nd of 303 for the driest March (rainfall, lowest first). The mean March high of those 303 cities is 11.5°C; Nagano is 4.4°C cooler than that mean.
From March to April, average highs rise by 6.8°C to 13.9°C, and monthly rainfall falls from 138 mm to 115 mm.
The annual picture
March 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, selected | 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
March in nearby cities
- Ueda in MarchJapan · 29 kmHigh 8.8°C · Low -1.0°C · 118 mm rain
- Azumino in MarchJapan · 48 kmHigh 7.1°C · Low -1.7°C · 155 mm rain
- Matsumoto in MarchJapan · 50 kmHigh 7.7°C · Low -1.6°C · 155 mm rain
- Saku in MarchJapan · 55 kmHigh 9.0°C · Low -0.9°C · 99 mm rain
- Jōetsu in MarchJapan · 56 kmHigh 8.3°C · Low 0.6°C · 145 mm rain
- Shibukawa in MarchJapan · 75 kmHigh 10.2°C · Low 0.5°C · 118 mm rain
- Takasaki in MarchJapan · 82 kmHigh 11.4°C · Low 0.6°C · 131 mm rain
- Maebashi in MarchJapan · 85 kmHigh 11.3°C · Low 0.9°C · 118 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.