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Onuma

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Travel guide
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Travel guide
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Best time to visit Onuma

Data source:Meteostat
Last updated:2025-09

Weather in Onuma throughout the year

  • Spring (March–May): Average 3.4–13.7°C, mild but still chilly, increasing rainfall. Common activities: Hiking, flower viewing (e.g., cherry blossoms, depending on blooming conditions). Recommended clothing: Warm jacket, sweater, long pants.
  • Summer (June–August): Average 17.9–24.5°C, warm and humid, with the most rainfall in August. Common activities: Outdoor activities, but be mindful of rain. Recommended clothing: Light and breathable clothing, rain gear.
  • Autumn (September–November): Average 13.7–20.8°C, comfortable and pleasant, but with a larger temperature difference between morning and evening. Common activities: Maple leaf viewing (depending on leaf color change), hiking and trekking. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average -2.0–-0.7°C, cold, with a low probability of snowfall. Common activities: Skiing (depending on snow conditions), indoor activities. Recommended clothing: Heavy coat, warm clothing, hat, gloves, scarf.

Weather in Onuma

Annual average temperature: approx. 10.8°C / Annual rainfall: approx. 1172 mm / Summer humidity: 70%–80% / Rainiest month: August

Onuma weather by month

Month
Temperature (°C)
Rainfall (mm)
January
-2°C
94
February
-1.3°C
36
March
3.4°C
64.7
April
9.6°C
44.3
May
13.7°C
72
June
17.9°C
129.3
July
22.7°C
93.7
August
24.5°C
245
September
20.8°C
94.3
October
13.7°C
116.7
November
7.1°C
99.7
December
-0.7°C
83

7-day weather forecast for Onuma

11/15
Sunday
Light rain
9.1°C/5.2°C
11/16
Monday
Patchy rain nearby
8.6°C/0.5°C
11/17
Tuesday
Partly Cloudy
6.4°C/-1.9°C
11/18
Wednesday
Overcast
11.3°C/4.2°C
11/19
Thursday
Partly Cloudy
8.2°C/0.9°C
11/20
Friday
Blizzard
1.3°C/-0.2°C
11/21
Saturday
Patchy moderate snow
2.4°C/-2.7°C