When to go · Onjuku
Onjuku in September
Great month. Inside Onjuku's best window: Jun–Sep (warm sea, surf season).
Key facts
- Verdict
- Great
- Temperature
- 27°C (81°F)81°F (27°C) / 20°C (68°F)68°F (20°C)
- average high / low
- Rain days
- 11
- Crowds
- Medium
- Japan overall
- Prices
- Medium
- Japan overall
Verdict
Inside Onjuku's best window: Jun–Sep (warm sea, surf season).
Is another month better than September?
No other month rates higher than September for Onjuku in this guide.
Weather in September
- OnjukuHighs around 27 °C (81 °F), lows around 20 °C (68 °F), rain on about 11 daysHighs around 81 °F (27 °C), lows around 68 °F (20 °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 Onjuku, side by side.
Verdict
Sep: Great
Jun: Great
Daytime high
Sep: 27 °C (81 °F)81 °F (27 °C)
Jun: 26 °C (79 °F)79 °F (26 °C)
Night low
Sep: 20 °C (68 °F)68 °F (20 °C)
Jun: 18 °C (64 °F)64 °F (18 °C)
Rain days
Sep: 11
Jun: 11
Crowds
Sep: Medium
Jun: Low
Prices
Sep: Medium
Jun: Medium
Festivals listed
Sep: 0
Jun: 0
September: Inside Onjuku's best window: Jun–Sep (warm sea, surf season).
June: Inside Onjuku's best window: Jun–Sep (warm sea, surf season).
Onjuku: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast