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Otsu

Otsu 1
Travel guide
1
Travel guide

Top 10 things to do in Otsu

Featured activity reviews in Otsu

Best time to visit Otsu

Data source:Meteostat
Last updated:2025-09

Weather in Otsu throughout the year

  • 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.

Weather in Otsu

Annual average temperature: approx. 17.2°C / Annual rainfall: approx. 1656 mm / Summer humidity: 70%–80% / Rainiest month: August

Otsu weather by month

Month
Temperature (°C)
Rainfall (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

7-day weather forecast for Otsu

11/1
Sunday
Overcast
18.9°C/9.4°C
11/2
Monday
Overcast
16.7°C/12°C
11/3
Tuesday
Sunny
19°C/10.9°C
11/4
Wednesday
Overcast
18°C/10°C
11/5
Thursday
Overcast
19.2°C/13.5°C
11/6
Friday
Mist
19.7°C/11.8°C
11/7
Saturday
Patchy rain nearby
13.6°C/8.4°C