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Gero Onsen

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Gero Onsen Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Gero Onsen year round climate

  • Spring (March–May): 41–59°F on average, mild climate but with relatively high rainfall, especially in April. Common activities: flower viewing, hot spring bathing, hiking. Recommended attire: light jacket, comfortable long pants, rain gear.
  • Summer (June–August): 68–77°F on average, hot and humid, with relatively high rainfall, peaking in July. Common activities: playing in streams, hot spring bathing, sightseeing in cool mountain resorts. Recommended attire: light and breathable clothing, rain gear, sun hat.
  • Autumn (September–November): 46–73°F on average, pleasant climate, but with a large temperature difference between morning and evening, moderate rainfall. Common activities: autumn leaves viewing, hot spring bathing, hiking. Recommended attire: light jacket, long-sleeved shirt, comfortable long pants.
  • Winter (December–February): -33–46°F on average, cold and dry, occasional snowfall. Common activities: skiing, hot spring bathing, snow scenery viewing. Recommended attire: warm clothing, thick jacket, scarf, gloves, hat.

Gero Onsen climatological average

Annual average temperature: approx. 53.6°F / Annual rainfall: approx. 1883 mm / Summer humidity: 70%–80% / Rainiest month: July

Gero Onsen monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
30°F
85.6
February
32.7°F
85.1
March
41°F
159.9
April
53.8°F
174.3
May
59.4°F
216.8
June
68.2°F
213.6
July
76.5°F
222.8
August
77.2°F
145.9
September
73°F
218.2
October
57°F
160.6
November
46.9°F
123.2
December
35.2°F
77.8

Gero Onsen weather for the next seven days

12/19
Friday
Sunny
40.4°F/18.9°F
12/20
Saturday
Patchy rain nearby
41.5°F/26.6°F
12/21
Sunday
Moderate rain
49.6°F/30.8°F
12/22
Monday
Moderate or heavy snow showers
27.5°F/18.2°F
12/23
Tuesday
Sunny
38.9°F/19.1°F
12/24
Wednesday
Light rain
34.6°F/27.4°F
12/25
Thursday
Light freezing rain
27.2°F/17°F