SeasonScore
Osaka, Japan
Photo: Kaiza96 · CC BY-SA 3.0

Japan

Osaka in August

🥵 Summer

Hot, humid and some showers. Watch for tropical cyclone risk.

🎒 Pack: light, breathable clothes & sunscreen · compact umbrella or rain jacket · quick-dry fabrics

Best months: May (9.0), Apr (8.9), Nov (8.9)

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Why August scores 7.5What goes into the score

How it works
🌡️ 34° / 26°C🌧️ 113 mm💧 dew pt 24°🍃 PM2.5 17
  • Weather comfort6.5
    • !Hot (34°C highs / 26°C lows)
    • !Very humid/sticky (dew point 23.6°C)
    • !Wet: ~113 mm rain, ~3 heavy-rain days
  • Air quality8.1
    • ✓Moderate (PM2.5 ~17 µg/m³)
  • Seasonal hazards8.5
    • !Tropical cyclone: Peak of the Western Pacific typhoon season
  • Safety baseline9.0
    • ·Normal precautions
Compare monthsPut August side by side with another month
AugMay
Score7.5 Very good9.0 Excellent
Season🥵 Summer🌿 Late spring
High / low34° / 26°25° / 16°
Rain113 mm137 mm
Humiditydew pt 24°dew pt 14°
PM2.517 µg/m³19 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Osaka weather-station normals. Rainfall: Osaka weather-station normals (national met service).

Holidays & crowdsAugust 2027

Holiday week

A long local holiday falls this month. Expect crowds at sights, fuller trains and flights, and higher hotel prices on those dates. Book ahead.

  • Obon 13–16 Aug

    Not a public holiday, but many people take these days off to visit family: trains, highways and resorts are packed. Source: Japan National Tourism Organization

Other public holidays: Mountain Day (11 Aug)

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Nature calendarBlossoms, leaves & seasons in Osaka

  • Cherry blossom 2026 (what actually happened)2026 actual
    First blooms 26 Mar 2026, full bloom 3 Apr 2026

    Observed by JMA at the city's official sample tree. The 2027 forecast isn't out yet: Japanese weather companies such as the Japan Weather Association usually publish the first one in January, and we add it then.

    Source: Japan Meteorological Agency

  • Cherry blossomTypical dates
    First blooms ~27 Mar, full bloom ~4 Apr

    Typical dates (1991–2020 normal). In 2021–2026 first blooms came between 19 Mar and 30 Mar (26 Mar in 2026). Blossoms last about a week after full bloom.

    Source: Japan Meteorological Agency

  • Autumn leaves: Osaka Castle ParkTypical dates
    Usually mid-Nov to early-Dec

    Usual peak viewing window for this spot.

    Source: Japan Weather Association (tenki.jp)

  • Autumn leaves: Minoo Park (day trip)Typical dates
    Usually mid-Nov to early-Dec

    Usual peak viewing window for this spot.

    Source: Japan Weather Association (tenki.jp)

Explore OsakaEvents, sights, food & souvenirs

Check event dates locally

Japan's third-largest city and a historic merchant hub, known for street food, neon-lit Dōtonbori, Osaka Castle and as a base for Kyoto, Nara and Kobe.

Events in August
ObonAcross Japan

Families honor ancestors; fireworks and Bon Odori dances in every town.

Coming up later

Kishiwada Danjiri MatsuriDate variesUsually mid-September

Heavy wooden floats are pulled at speed through narrow streets and around corners.

Why go: Watch from designated areas; it can be dangerous near the route.

Where: Kishiwada, south of Osaka

Tōka EbisuEvery year9–11 January every year

A festival for the god of business, with crowds buying lucky bamboo branches.

Why go: Around a million visitors attend over three days.

Where: Imamiya Ebisu Shrine

Grand Sumo Spring TournamentDate variesUsually March, 15 days

One of the six annual professional sumo tournaments.

Why go: Tickets sell out quickly for weekend days.

Where: Edion Arena Osaka