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Lake Biwa

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Lake Biwa Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Lake Biwa year round climate

  • Spring (March–May): 47–63°F on average, mild climate but with relatively heavy rainfall, especially in April and May. Common activities: Flower viewing, lakeside walks, cycling. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): 72–83°F on average, hot and humid with frequent rainfall, most rainfall in July. Common activities: Water activities, camping, sightseeing at summer resorts. Recommended clothing: Light and breathable clothing, sun hat, rain gear.
  • Autumn (September–November): 64–78°F on average, pleasant and comfortable climate with less rainfall. Common activities: Hiking, viewing autumn leaves, lakeside leisure. Recommended clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): 39–44°F on average, cold and dry with little rainfall. Common activities: Hot spring trips, indoor activities. Recommended clothing: Warm jacket, hat, scarf, gloves.

Lake Biwa climatological average

Annual average temperature: approx. 60.3°F / Annual rainfall: approx. 1670 mm / Summer humidity: 70%–80% / Rainiest month: July

Lake Biwa monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
39.4°F
90.8
February
41°F
79.7
March
47.7°F
123.8
April
58.1°F
152.2
May
63.9°F
188.3
June
72.9°F
223.6
July
81.7°F
235.1
August
83.3°F
165.1
September
79°F
117.4
October
64.9°F
124.5
November
55.4°F
96.9
December
44.1°F
72.7

Lake Biwa weather for the next seven days

12/22
Monday
Patchy rain nearby
45.8°F/40°F
12/23
Tuesday
Partly Cloudy
50.2°F/38°F
12/24
Wednesday
Heavy rain
49.9°F/49°F
12/25
Thursday
Patchy rain nearby
53.1°F/46.4°F
12/26
Friday
Patchy rain nearby
39.9°F/35°F
12/27
Saturday
Overcast
41.3°F/33.9°F
12/28
Sunday
Patchy rain nearby
43.9°F/40.4°F