When to go · Seto
Seto in September
Mixed month. Outside the best window (Mar–May, Oct–Nov). Across Japan: Still hot; typhoon peak can cancel flights and ferries for a day or two.
Key facts
- Verdict
- Mixed
- Temperature
- 29°C (84°F)84°F (29°C) / 20°C (68°F)68°F (20°C)
- average high / low
- Rain days
- 12
- Crowds
- Medium
- Japan overall
- Prices
- Medium
- Japan overall
Verdict
Outside the best window (Mar–May, Oct–Nov). Across Japan: Still hot; typhoon peak can cancel flights and ferries for a day or two.
Is another month better than September?
September is rated mixed. These months rate higher:
Weather in September
- SetoHighs around 29 °C (84 °F), lows around 20 °C (68 °F), rain on about 12 daysHighs around 84 °F (29 °C), lows around 68 °F (20 °C), rain on about 12 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 Seto, side by side.
Verdict
Sep: Mixed
Mar: Great (better)
Daytime high
Sep: 29 °C (84 °F)84 °F (29 °C)
Mar: 14 °C (57 °F)57 °F (14 °C)
Night low
Sep: 20 °C (68 °F)68 °F (20 °C)
Mar: 3 °C (37 °F)37 °F (3 °C)
Rain days
Sep: 12
Mar: 9 (better)
Crowds
Sep: Medium
Mar: High
Prices
Sep: Medium
Mar: High
Festivals listed
Sep: 0
Mar: 1
September: Outside the best window (Mar–May, Oct–Nov). Across Japan: Still hot; typhoon peak can cancel flights and ferries for a day or two.
March: Inside Seto's best window: Mar–May, Oct–Nov.
Seto: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast