Climate of Nagano, Nagano Prefecture, Japan
Point-value climate at Nagano (Nagano Prefecture, Japan). Population approximately 594,311.
Located in Nagano Prefecture, Japan, Nagano has a strongly continental climate. Population approximately 594,311. Monthly average temperatures range from -0.2°C / 31.6°F in January to 25.5°C / 77.9°F in August, with rainfall varying from 63 mm / 2.5 in (December) to 148 mm / 5.8 in (July) — about 1129 mm / 44.4 in across the year. Nagano is the capital of Nagano Prefecture. These are point-value climate normals sampled at Nagano's coordinates — often quite different from the surrounding region's area-weighted average.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -0.2°C31.6°F | 76 mm3″ | Snowy |
| February | 0.4°C32.7°F | 67 mm2.6″ | Snowy |
| March | 4°C39.2°F | 74 mm2.9″ | — |
| April | 10.9°C51.6°F | 70 mm2.8″ | — |
| May | 16.1°C61°F | 83 mm3.3″ | — |
| June | 20.3°C68.5°F | 135 mm5.3″ | — |
| July | 24.2°C75.6°F | 148 mm5.8″ | — |
| August | 25.5°C77.9°F | 103 mm4.1″ | — |
| September | 20.6°C69.1°F | 145 mm5.7″ | — |
| October | 14°C57.2°F | 98 mm3.9″ | — |
| November | 7.9°C46.2°F | 67 mm2.6″ | — |
| December | 2.5°C36.5°F | 63 mm2.5″ | — |
Frequently asked questions
What is the best time to visit Nagano?
Nagano does not have a clearly "sunny" season by our profile cutoffs — see the "warmest and driest months" fallback for the closest picks. Nagano's warmest month is August at an average of 25.5°C / 77.9°F, and its driest month is December with about 63 mm / 2.5 in of rain.
What is the climate of Nagano?
Nagano, in Nagano Prefecture, Japan, has monthly average temperatures ranging from -0.2°C / 31.6°F in January to 25.5°C / 77.9°F in August. Annual rainfall is approximately 1129 mm / 44.4 in, with the wettest month being July (148 mm / 5.8 in) and the driest December (63 mm / 2.5 in).
What is the average temperature in Nagano in August?
The average temperature in Nagano in August is 25.5°C / 77.9°F, with rainfall of about 103 mm / 4.1 in — the warmest month of the year.
When is the driest month in Nagano?
The driest month in Nagano is December, with about 63 mm / 2.5 in of average monthly rainfall. Average temperature that month is 2.5°C / 36.5°F.
When is the wettest month in Nagano?
The wettest month in Nagano is July, with approximately 148 mm / 5.8 in of average monthly rainfall.