+36.6500° · +138.1833° · ELEV 0m

Nagano

Japan · Nagano

Monthly weather averages for Nagano, Japan — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.

№ 01

Climate Overview

August → January

Nagano has a continental climate. The warmest month is August (30°C average high) and the coolest is January (4°C).

№ 02

Rainfall by Month

1546 mm / year

Nagano sees 1546 mm of rain a year. The wettest month is July (212 mm); the driest is November (88 mm).

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№ 03

Best Time to Visit

August–September
August–September
17°C – 30°C · 9.3h sun

The best time to visit Nagano is August–September, when temperatures average 17°C–30°C with 9.3 sunshine hours per day.

Some visitors prefer April–June for cooler, drier conditions.

№ 04

Monthly Breakdown

12 months · °C · mm · hours
Monthly climate normals for Nagano, Japan — click a column to sort
January4.0°C-5.2°C106 mm7.5 h06:5816:53
February5.4°C-4.7°C90 mm8.3 h06:3617:26
March10.9°C-0.5°C108 mm9.0 h05:5917:53
April16.3°C4.0°C118 mm9.5 h05:1418:20
May22.1°C10.1°C110 mm10.1 h04:4018:46
June24.7°C14.9°C131 mm9.7 h04:2819:07
July28.3°C19.8°C212 mm9.6 h04:3919:06
August29.6°C20.8°C150 mm10.2 h05:0418:39
September25.1°C16.5°C163 mm8.5 h05:2917:56
October18.6°C9.4°C147 mm8.1 h05:5317:12
November13.5°C3.5°C88 mm7.5 h06:2416:39
December7.2°C-2.1°C123 mm7.2 h06:5116:32

Nearby cities

View monthly climate averages for nearby cities or compare them with Nagano.

Temperature, rainfall and sunshine, month by month.