When to go · Osaka
Osaka in August
Avoid month. Extreme heat; Obon peak.
Key facts
- Verdict
- Avoid
- Temperature
- 34° / 26°
- average high / low
- Rain days
- 7
- Crowds
- High
- Japan overall
- Prices
- High
- Japan overall
Verdict
Extreme heat; Obon peak.
Weather in August
- OsakaHighs around 34 °C, lows around 26 °C, rain on about 7 days
- Honshū cities, Japan · Tokyo, Kyoto, Osaka, Hiroshimahot
Rainy season June to mid-July; humid heat July–August; typhoon risk peaks in September.
Summer season
Tenjin Matsuri boats and fireworks (24–25 July), summer shrine festivals, rooftop beer gardens.
Watch: Rainy season in June; heat above 33 °C in July and August.
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.
Sumiyoshi Matsuri check
Late July to 1 August · Sumiyoshi Taisha to Sakai
Processions and a purification rite that closes the summer festival run.
Naniwa Yodogawa fireworks check
Early to mid-August (check) · Yodo River banks near Jūsō
Hundreds of thousands of spectators; Hankyu stations near the river crowded for hours after.
Obon
About 13–16 August · Nationwide
Shinkansen and highways full; some small restaurants close.
Typhoon season
Peaks late August–September · Whole city
Trains and KIX flights can stop for a day; watch the forecast two days out.
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.
What to pack
- Light, breathable clothes, a sun hat and sunscreen