When to go · Karuizawa
Karuizawa in August
Avoid month. Listed as a month to avoid: Jul–Aug weekends (crowded, wet), Jan–Feb (cold, icy roads).
Key facts
- Verdict
- Avoid
- Temperature
- 25°C (77°F)77°F (25°C) / 17°C (63°F)63°F (17°C)
- average high / low
- Rain days
- 13
- Crowds
- High
- Japan overall
- Prices
- High
- Japan overall
Verdict
Listed as a month to avoid: Jul–Aug weekends (crowded, wet), Jan–Feb (cold, icy roads).
Is another month better than August?
August is rated avoid. These months rate higher:
Weather in August
- KaruizawaHighs around 25 °C (77 °F), lows around 17 °C (63 °F), rain on about 13 daysHighs around 77 °F (25 °C), lows around 63 °F (17 °C), rain on about 13 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 Karuizawa, side by side.
Verdict
Aug: Avoid
May: Great (better)
Daytime high
Aug: 25 °C (77 °F)77 °F (25 °C)
May: 17 °C (63 °F)63 °F (17 °C)
Night low
Aug: 17 °C (63 °F)63 °F (17 °C)
May: 8 °C (46 °F)46 °F (8 °C)
Rain days
Aug: 13
May: 11 (better)
Crowds
Aug: High
May: Medium
Prices
Aug: High
May: Medium
Festivals listed
Aug: 1
May: 1
August: Listed as a month to avoid: Jul–Aug weekends (crowded, wet), Jan–Feb (cold, icy roads).
May: Inside Karuizawa's best window: May–Jun, Oct–Nov.
Karuizawa: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast