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Otsu

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Otsu Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Otsu year round climate

  • Spring (March–May): Average 50–66°F, mild climate but with relatively high rainfall, especially frequent in April and May. Common activities: Flower viewing, Lake Biwa cruises. Recommended clothing: Light jacket, long-sleeved shirts.
  • Summer (June–August): Average 74–85°F, hot and humid with frequent rainfall, especially from June to August. Common activities: Swimming, water sports, visiting summer resorts. Recommended clothing: Light and breathable clothing, short sleeves, shorts, sun protection clothing.
  • Autumn (September–November): Average 66–80°F, comfortable and pleasant climate with gradually decreasing rainfall. Common activities: Hiking, autumn foliage viewing, outdoor excursions. Recommended clothing: Long-sleeved shirts, light jacket.
  • Winter (December–February): Average 41–44°F, cold and dry with low rainfall. Common activities: Skiing (requires travel to mountainous areas), onsen experience. Recommended clothing: Warm jacket, sweater, scarf, gloves.

Otsu climatological average

Annual average temperature: approx. 63.0°F / Annual rainfall: approx. 1656 mm / Summer humidity: 70%–80% / Rainiest month: August

Otsu monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
41.2°F
47.4
February
43°F
72.5
March
50.9°F
131.3
April
61.5°F
182.2
May
66.7°F
199.8
June
74.7°F
248.8
July
84°F
176
August
85.1°F
254.7
September
80.8°F
127.3
October
66.4°F
105.2
November
57°F
91.9
December
45°F
19.2

Otsu weather for the next seven days

12/21
Sunday
Patchy rain nearby
56.2°F/50.1°F
12/22
Monday
Sunny
47.4°F/39.7°F
12/23
Tuesday
Patchy rain nearby
53.1°F/37.9°F
12/24
Wednesday
Heavy rain
56.9°F/49.7°F
12/25
Thursday
Sunny
47.9°F/41.4°F
12/26
Friday
Partly Cloudy
49.5°F/37°F
12/27
Saturday
Moderate rain
49.8°F/44.8°F