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Mount Aso

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Mount Aso Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Mount Aso year round climate

  • Spring (March–May): Average 5–13°C, cool climate with abundant sunshine and little rainfall. Common activities: Hiking, appreciating the Aso volcano scenery. Recommended clothing: Warm jacket, long-sleeved clothing, comfortable hiking shoes.
  • Summer (June–August): Average 17–23°C, warm and comfortable climate, with less rainfall in some months. Common activities: Hiking, camping, appreciating grassland scenery. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 9–16°C, pleasant climate, dry and comfortable, with little rainfall. Common activities: Hiking, appreciating autumn leaves, experiencing hot springs. Recommended clothing: Light jacket, long-sleeved clothing.
  • Winter (December–February): Average 1–5°C, cold and dry climate, very little rainfall. Common activities: Viewing snow scenery (depending on the situation), experiencing hot springs. Recommended clothing: Warm jacket, hat, gloves, scarf, warm underwear.

Mount Aso climatological average

Annual average temperature: approx. 12°C / Annual rainfall: approx. 104 mm / Summer humidity: 60%–70% / Rainiest month: June

Mount Aso monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
1.5°C
1.4
February
4.1°C
7.9
March
5°C
13.5
April
12.1°C
10
May
13.5°C
10
June
17.2°C
22.5
July
22°C
10.7
August
23.2°C
13.2
September
21.1°C
3.4
October
15.7°C
5.3
November
9.1°C
5.6
December
1.3°C
0.6

Mount Aso weather for the next seven days

3/20
Friday
Sunny
10.5°C/3.1°C
3/21
Saturday
Sunny
11.7°C/3.3°C
3/22
Sunday
Heavy rain
13.4°C/6.8°C
3/23
Monday
Patchy rain nearby
12.1°C/6.1°C
3/24
Tuesday
Sunny
12.3°C/4°C
3/25
Wednesday
Patchy rain nearby
9.7°C/5.9°C
3/26
Thursday
Sunny
15.1°C/8°C