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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 10.5–19.3°C, 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 23.7–29.5°C, 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 19.1–27.1°C, 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 5.1–7.2°C, 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. 17.2°C / Annual rainfall: approx. 1656 mm / Summer humidity: 70%–80% / Rainiest month: August

Otsu monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
5.1°C
47.4
February
6.1°C
72.5
March
10.5°C
131.3
April
16.4°C
182.2
May
19.3°C
199.8
June
23.7°C
248.8
July
28.9°C
176
August
29.5°C
254.7
September
27.1°C
127.3
October
19.1°C
105.2
November
13.9°C
91.9
December
7.2°C
19.2

Otsu weather for the next seven days

3/14
Saturday
Partly Cloudy
10.7°C/3.6°C
3/15
Sunday
Partly Cloudy
11.2°C/4.2°C
3/16
Monday
Sunny
11.8°C/2.6°C
3/17
Tuesday
Partly Cloudy
14.9°C/3°C
3/18
Wednesday
Patchy rain nearby
18°C/5.8°C
3/19
Thursday
Patchy rain nearby
10.9°C/6.9°C
3/20
Friday
Patchy rain nearby
11.9°C/8.1°C