When to go · Mount Aso
Mount Aso in September
Avoid month. Listed as a month to avoid: Jul–Aug (heat and haze), Jan–Feb (ice on trails), typhoon season Sep.
Key facts
- Verdict
- Avoid
- Temperature
- 27°C (81°F)81°F (27°C) / 18°C (64°F)64°F (18°C)
- average high / low
- Rain days
- 11
- Crowds
- Medium
- Japan overall
- Prices
- Medium
- Japan overall
Verdict
Listed as a month to avoid: Jul–Aug (heat and haze), Jan–Feb (ice on trails), typhoon season Sep.
Is another month better than September?
September is rated avoid. These months rate higher:
Weather in September
- Mount AsoHighs around 27 °C (81 °F), lows around 18 °C (64 °F), rain on about 11 daysHighs around 81 °F (27 °C), lows around 64 °F (18 °C), rain on about 11 days
Crowds and prices
- Crowds · Japan overall
- Medium
- Prices · Japan overall
- Medium
Japan overall: Still hot; typhoon peak can cancel flights and ferries for a day or two.
Compare two months
Weather, crowds and prices for any two months in Mount Aso, side by side.
Verdict
Sep: Avoid
Apr: Great (better)
Daytime high
Sep: 27 °C (81 °F)81 °F (27 °C)
Apr: 19 °C (66 °F)66 °F (19 °C)
Night low
Sep: 18 °C (64 °F)64 °F (18 °C)
Apr: 7 °C (45 °F)45 °F (7 °C)
Rain days
Sep: 11
Apr: 10 (better)
Crowds
Sep: Medium
Apr: High
Prices
Sep: Medium
Apr: High
Festivals listed
Sep: 0
Apr: 2
September: Listed as a month to avoid: Jul–Aug (heat and haze), Jan–Feb (ice on trails), typhoon season Sep.
April: Inside Mount Aso's best window: Apr–May, Oct–early Nov.
Mount Aso: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast