When to go · Koshu
Koshu in August
Great month. Inside Koshu's best window: Apr–Oct (wine festivals, fruit harvest, mild weather).
Key facts
- Verdict
- Great
- Temperature
- 28°C (82°F)82°F (28°C) / 18°C (64°F)64°F (18°C)
- average high / low
- Rain days
- 9
- Crowds
- High
- Japan overall
- Prices
- High
- Japan overall
Verdict
Inside Koshu's best window: Apr–Oct (wine festivals, fruit harvest, mild weather).
Is another month better than August?
No other month rates higher than August for Koshu in this guide.
Weather in August
- KoshuHighs around 28 °C (82 °F), lows around 18 °C (64 °F), rain on about 9 daysHighs around 82 °F (28 °C), lows around 64 °F (18 °C), rain on about 9 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 Koshu, side by side.
Verdict
Aug: Great
Apr: Great
Daytime high
Aug: 28 °C (82 °F)82 °F (28 °C)
Apr: 18 °C (64 °F)64 °F (18 °C)
Night low
Aug: 18 °C (64 °F)64 °F (18 °C)
Apr: 7 °C (45 °F)45 °F (7 °C)
Rain days
Aug: 9
Apr: 6 (better)
Crowds
Aug: High
Apr: High
Prices
Aug: High
Apr: High
Festivals listed
Aug: 1
Apr: 2
August: Inside Koshu's best window: Apr–Oct (wine festivals, fruit harvest, mild weather).
April: Inside Koshu's best window: Apr–Oct (wine festivals, fruit harvest, mild weather).
Koshu: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.