Mount Aso 阿蘇山
Mount Aso, Japan
Mount Aso is a supervolcano in Kumamoto Prefecture and is part of the Aso Caldera. It is one of the 100 famous Japanese mountains and one of the top 100 geological sites in Japan.
Planning a visit
The weather at Mount Aso varies by season. The warmest months are July and August, with daily highs reaching 24 °C to 25 °C. June and July are the wettest months, seeing about 720 mm to 728 mm of rain. The coldest period is January, when temperatures can drop to a low of -5 °C.
To reach Mount Aso, you can fly into Kumamoto Airport, which is 24 km away. The site is 848 km from Tokyo. Visitors can also combine a trip to Mount Aso with a visit to Kumamoto Castle, located about 38 km away. Mount Aso is the 38th most looked-up sight in Japan on English Wikipedia.
Weather by month
The warmest month is August, with an average high of 25 °C. The wettest is July, with about 728 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 3 | 4 | 9 | 14 | 18 | 21 | 24 | 25 | 22 | 17 | 11 | 5 |
| Average low, °C | -5 | -4 | -1 | 4 | 9 | 14 | 17 | 18 | 14 | 8 | 2 | -3 |
| Rainfall, mm | 108 | 153 | 262 | 284 | 347 | 720 | 728 | 363 | 345 | 169 | 138 | 87 |
| Rainy days | 8 | 9 | 11 | 12 | 12 | 17 | 20 | 19 | 16 | 10 | 9 | 8 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
