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Nagaoka

Travel guide

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Best time to visit Nagaoka

Data source:Meteostat
Last updated:2025-09

Weather in Nagaoka throughout the year

  • Spring (March–May): 7.5–17.2°C on average, mild but can be chilly and humid, moderate rainfall. Common activities: flower viewing, hiking, sightseeing. Recommended clothing: light jacket, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): 22.0–28.4°C on average, hot and humid, heavier rainfall, especially in July. Common activities: swimming, outdoor activities (sun protection and rain gear needed), enjoying seasonal food. Recommended clothing: light and breathable clothing, sun hat, rain gear.
  • Autumn (September–November): 11.9–24.9°C on average, pleasant temperatures, heavier rainfall, relatively high humidity. Common activities: autumn leaves viewing, hiking, visiting temples and shrines. Recommended clothing: comfortable long-sleeved shirts, light jacket, comfortable shoes.
  • Winter (December–February): 3.2–5.2°C on average, cold and dry, heavier rainfall, especially in December. Common activities: skiing (requires going to mountain areas), hot springs, indoor activities. Recommended clothing: warm clothing, thick jacket, scarf, gloves, hat.

Weather in Nagaoka

Annual average temperature: approx. 15°C / Annual rainfall: approx. 1981 mm / Summer humidity: 70%–80% / Rainiest month: December

Nagaoka weather by month

Month
Temperature (°C)
Rainfall (mm)
January
3.2°C
150
February
3.6°C
111.3
March
7.5°C
113.7
April
13°C
79.3
May
17.2°C
128.7
June
22°C
137.7
July
26.4°C
258
August
28.4°C
108.3
September
24.9°C
202.7
October
17.1°C
147.7
November
11.9°C
217.3
December
5.2°C
326.3

7-day weather forecast for Nagaoka

11/15
Sunday
Light rain
14.1°C/12.2°C
11/16
Monday
Patchy rain nearby
14.3°C/10°C
11/17
Tuesday
Overcast
12.9°C/8.1°C
11/18
Wednesday
Light drizzle
17.2°C/8.9°C
11/19
Thursday
Light rain shower
13.1°C/6.4°C
11/20
Friday
Light rain shower
6.1°C/5°C
11/21
Saturday
Light rain shower
6.3°C/5°C