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Lake Hamana

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Lake Hamana Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Lake Hamana year round climate

  • Spring (March–May): Average 11.4–19.4°C, mild and comfortable, but with more rain; prepare for rain. Common activities: lake tours, outings, flower viewing. Recommended clothing: light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 22.9–28.2°C, hot and humid, with more rainfall; pay attention to sun protection and heatstroke prevention. Common activities: swimming, water sports, tasting local seafood. Recommended clothing: light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 19.9–15.0°C, pleasant climate, rainfall gradually decreasing. Common activities: maple viewing, cycling, strolling along the lakeshore. Recommended clothing: comfortable long-sleeved shirts, light jacket, casual shoes.
  • Winter (December–February): Average 8.2–7.6°C, relatively low temperatures, occasional rainfall. Common activities: hot spring bathing, tasting local specialties. Recommended clothing: warm coat, scarf, hat, gloves.

Lake Hamana climatological average

Annual average temperature: approx. 17.4°C / Annual rainfall: approx. 2639 mm / Summer humidity: 70%–80% / Rainiest month: June

Lake Hamana monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
6.3°C
52.1
February
7.6°C
105.8
March
11.4°C
191.6
April
16.5°C
244.9
May
19.4°C
300.6
June
22.9°C
397.3
July
27.6°C
280.1
August
28.2°C
276.6
September
26.3°C
349.2
October
19.9°C
217.7
November
15°C
166.7
December
8.2°C
56.9

Lake Hamana weather for the next seven days

12/22
Monday
Patchy rain nearby
11.6°C/8°C
12/23
Tuesday
Partly Cloudy
12.5°C/8.5°C
12/24
Wednesday
Heavy rain
15.2°C/10.7°C
12/25
Thursday
Patchy rain nearby
14.1°C/10.5°C
12/26
Friday
Sunny
9°C/3.9°C
12/27
Saturday
Sunny
8.5°C/3°C
12/28
Sunday
Partly Cloudy
10°C/3.4°C

Lake Hamana Frequently Asked Questions and Useful Information for Travel

Best time to visit?

Kanzanji Onsen Sansuikan Kinryu is open all year round, but is especially popular during the cherry blossom season in spring and the autumn leaves in fall.

Must-see attractions?

All rooms at Kanzanji Onsen Sansuikan Kinryu have a panoramic view of Lake Hamana. The large bathhouse, made entirely of cypress wood, is also a unique spot.