The tour guide was excellent, carefully guiding us through each area, explaining local history and introducing beautiful sights. The service was thoughtful and comprehensive; I will definitely visit again next time I have the opportunity.
The chartered driver was very patient! He even helped take photos...and was very patient in finding restaurants too 😀😀 All my friends who went on this tour were very satisfied.
Anonymous User
Friend
Gero Onsen Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Gero Onsen year round climate
Spring (March–May): 5–15°C 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): 20–25°C 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): 8–23°C 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): -1–8°C 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. 12°C / Annual rainfall: approx. 1883 mm / Summer humidity: 70%–80% / Rainiest month: July
Gero Onsen monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-1.1°C
85.6
February
0.4°C
85.1
March
5°C
159.9
April
12.1°C
174.3
May
15.2°C
216.8
June
20.1°C
213.6
July
24.7°C
222.8
August
25.1°C
145.9
September
22.8°C
218.2
October
13.9°C
160.6
November
8.3°C
123.2
December
1.8°C
77.8
Gero Onsen weather for the next seven days
5/11
Monday
Patchy rain nearby
20.2°C/1.7°C
5/12
Tuesday
Patchy rain nearby
21.5°C/5.5°C
5/13
Wednesday
Moderate rain
20.4°C/5.5°C
5/14
Thursday
Moderate rain
19.1°C/5.4°C
5/15
Friday
Sunny
23.2°C/4.3°C
5/16
Saturday
Sunny
25.8°C/6.4°C
5/17
Sunday
Sunny
26.5°C/8.2°C
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