Lake Kasumigaura Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Lake Kasumigaura year round climate
Spring (March–May): 9.7–18.2°C on average, mild climate but with relatively heavy rainfall, especially in April and May. Common activities: flower viewing, outings. Recommended clothing: light jacket, long-sleeved shirt, rain gear.
Summer (June–August): 22.6–28.1°C on average, hot and humid with frequent rainfall, especially the most rainfall in August. Common activities: water activities, summer escapes. Recommended clothing: light and breathable clothing, sun hat, rain gear.
Autumn (September–November): 18.4–13.3°C on average, pleasant and comfortable climate with gradually decreasing rainfall. Common activities: maple leaf viewing, outdoor excursions. Recommended clothing: light jacket, long-sleeved shirt.
Winter (December–February): 6.8–5.8°C on average, cold and dry with less rainfall. Common activities: hot springs, indoor activities. Recommended clothing: warm jacket, sweater, scarf.
Lake Kasumigaura climatological average
Annual average temperature: approx. 16.3°C / Annual rainfall: approx. 1904 mm / Summer humidity: 70%–80% / Rainiest month: August
Lake Kasumigaura monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
4.6°C
40.8
February
5.8°C
56.8
March
9.7°C
125.2
April
15.4°C
169.2
May
18.2°C
209.7
June
22.6°C
272.7
July
27.3°C
228.8
August
28.1°C
388.5
September
25.9°C
173.7
October
18.4°C
113.1
November
13.3°C
99.9
December
6.8°C
26.1
Lake Kasumigaura weather for the next seven days
12/17
Wednesday
Partly Cloudy
13.5°C/6.4°C
12/18
Thursday
Sunny
13.7°C/8.7°C
12/19
Friday
Sunny
13.2°C/6.8°C
12/20
Saturday
Moderate rain
14.7°C/10°C
12/21
Sunday
Partly Cloudy
13.5°C/10.7°C
12/22
Monday
Patchy rain nearby
13.4°C/8.3°C
12/23
Tuesday
Sunny
9.7°C/5.5°C
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