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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 52–66°F, 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 73–82°F, 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 67–59°F, 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 46–45°F, 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. 63.3°F / Annual rainfall: approx. 2639 mm / Summer humidity: 70%–80% / Rainiest month: June

Lake Hamana monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
43.3°F
52.1
February
45.7°F
105.8
March
52.5°F
191.6
April
61.7°F
244.9
May
66.9°F
300.6
June
73.2°F
397.3
July
81.7°F
280.1
August
82.8°F
276.6
September
79.3°F
349.2
October
67.8°F
217.7
November
59°F
166.7
December
46.8°F
56.9

Lake Hamana weather for the next seven days

8/17
Monday
Partly Cloudy
86.5°F/75°F
8/18
Tuesday
Sunny
90.2°F/75.9°F
8/19
Wednesday
Sunny
87.1°F/79.2°F
8/20
Thursday
Partly Cloudy
88.9°F/78.9°F
8/21
Friday
Patchy rain nearby
87.5°F/80.2°F
8/22
Saturday
Patchy rain nearby
86.8°F/79.6°F
8/23
Sunday
Partly Cloudy
86.8°F/79.5°F

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.