Late summer · Weather & things to do
Osaka in August
Osaka's warmest month brings highs averaging 89°F (31°C), lows of 74°F (24°C) and about 7.0 in (178 mm) of rain.
With a comfort score of 45/100 (11th of 12), it's one of the toughest months, held back mainly by humidity.
- Avg high
- 89°F (31°C)
- Avg low
- 74°F (24°C)
- Rain
- 7.0 in (178 mm)
- Humidity
- 84%
- Cloud cover
- 62%
- Daylight
- ~13 h 18 min
- Comfort score
- 45/100 · Fair
What August feels like
Afternoons run hot at about 89°F (31°C), which leaves mornings and evenings as the time for walking.
Even at night it stays warm, around 74°F (24°C).
With 84% average humidity, it feels muggy.
Expect regular rain: about 7.0 in (178 mm) falls in the month.
Plan around August
August is one of the lower-scoring months here; the best are April and November.
- Inside the wettest three-month stretch, July – September.
- Comfort improves from 39/100 in July to 45/100.
- Our Japan Golden Route recommends Mar – May, so August falls outside its suggested window.
What to pack for August
- Light, breathable clothes89°F afternoons
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- Quick-dry fabrics84% average humidity
- Rain jacket and waterproof shoes7.0 in of rain on average
- Comfortable walking shoesmost picks involve some walking
What to do in Osaka in August
Afternoons run hot (89°F), so these picks mix early-start outdoor spots with cool indoor breaks.
Umeda Sky Building
Twin towers joined by an open-air Floating Garden Observatory 173 m up.
Why now Go early — afternoons average 89°F.
Kuromon Ichiba Market
Covered market with grilled scallops, wagyu skewers, sea urchin and fruit stalls.
Why now A break from 89°F afternoons.
Dotonbori
Canal-side strip of giant neon signs, the Glico runner and street food stalls.
Why now Best first thing, before the 89°F afternoon heat.
Suntory Yamazaki Distillery
Japan's first malt whisky distillery, 40 minutes away by train in Shimamoto.
Why now Somewhere to sit out the hottest hours.
Mizuno
Family-run okonomiyaki shop on Dotonbori since 1945, with a Michelin Bib Gourmand.
Nearby in August
- Kyoto in August~27 mi · highs 87°F, 5.9 in rain · similar daytime temperatures, drier
- Tokyo in August~244 mi · highs 88°F, 6.1 in rain · similar daytime temperatures, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~264 m to Osaka's ~23 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Osaka in August: quick answers
Is August a good time to visit Osaka?
It's one of the tougher months here, scoring 45/100, held back mainly by humidity. The best months are April and November. Expect highs of 89°F (31°C) and 7.0 in (178 mm) of rain. Our Japan Golden Route recommends Mar – May, so August is outside its suggested window.
How hot is Osaka in August?
Average highs are 89°F (31°C) and average lows 74°F (24°C), making it the warmest month by daytime highs.
Does it rain a lot in Osaka in August?
Yes: about 7.0 in (178 mm) of rain falls across August on average, the 5th-wettest month of the year. The annual total is about 69.0 in (1753 mm).
What should I pack for Osaka in August?
Bring light, breathable clothes (89°F afternoons), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), quick-dry fabrics (84% average humidity) and rain jacket and waterproof shoes (7.0 in of rain on average).
Planning Osaka in August?
Share this August plan with your group, poll everyone on dates and keep the packing list in one place.