When to go · Sai
Sai in August
Great month. Inside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
Key facts
- Verdict
- Great
- Temperature
- 26°C (79°F)79°F (26°C) / 17°C (63°F)63°F (17°C)
- average high / low
- Rain days
- 5
- Crowds
- High
- Japan overall
- Prices
- High
- Japan overall
Verdict
Inside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
Is another month better than August?
No other month rates higher than August for Sai in this guide.
Weather in August
- SaiHighs around 26 °C (79 °F), lows around 17 °C (63 °F), rain on about 5 daysHighs around 79 °F (26 °C), lows around 63 °F (17 °C), rain on about 5 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Obon big impact
About 13–16 Aug · Japan
Family travel peak; Shinkansen and expressways jammed; some small shops close.
Crowds and prices
- Crowds · Japan overall
- High
- Prices · Japan overall
- High
Japan overall: Hottest month and Obon travel peak: go north (Hokkaidō, Tōhoku) or plan short outdoor windows.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Sai, side by side.
Verdict
Aug: Great
Jun: Great
Daytime high
Aug: 26 °C (79 °F)79 °F (26 °C)
Jun: 23 °C (73 °F)73 °F (23 °C)
Night low
Aug: 17 °C (63 °F)63 °F (17 °C)
Jun: 14 °C (57 °F)57 °F (14 °C)
Rain days
Aug: 5
Jun: 4 (better)
Crowds
Aug: High
Jun: Low
Prices
Aug: High
Jun: Medium
Festivals listed
Aug: 1
Jun: 0
August: Inside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
June: Inside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
Sai: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.