Osaka in August
In August, Osaka averages 33°C (91°F) during the day and 25°C (77°F) at night, with around 7 days of rain (110 mm total).
ShoulderConditions are very hot — early-morning and evening sightseeing recommended. Occasional showers are likely but won't dominate.
It's peak typhoon season in Osaka during August. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How August compares to the rest of the year in Osaka
August is one of the warmest months in Osaka (2nd of 12) and moderately rainy compared to the rest of the year (8th of 12). Daytime temperature runs 12°C above the annual average (21°C). August runs roughly the same as July (33°C) and cools 4°C in September (29°C).
August sunrise & sunset in Osaka
Times shown for Osaka local time (Asia/Tokyo), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Osaka — August
Golden-hour and blue-hour windows for the 15th of August, in Osaka's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Osaka in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (Shoulder) and Osaka's popularity.
August in Japan — events that affect travel
Known cultural, religious, or national events that surge prices, fill hotels, or close businesses during this month. Plan around them, or build your itinerary around the ones you'd like to see.
Buddhist festival when most of Japan travels back to family hometowns. Major attractions stay open but city-to-city trains book solid, especially Tokyo → Osaka.
Plan: Reserve Shinkansen seats 1+ month ahead, expect higher hotel prices in countryside, lower in Tokyo/Osaka.
Crowds & pricing — August in Osaka
Osaka is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: Northern Hemisphere summer holidays peak hazard season (1 active)
Sun & mosquito risk — August in Osaka
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Osaka in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 10°C / 50°F | 2°C / 36°F | 45 mm | 5 | 0 |
| February | 11°C / 52°F | 3°C / 37°F | 65 mm | 5 | 0 |
| March | 14°C / 57°F | 6°C / 43°F | 105 mm | 8 | 0 |
| April | 20°C / 68°F | 10°C / 50°F | 125 mm | 9 | 0 |
| May | 25°C / 77°F | 15°C / 59°F | 135 mm | 9 | 0 |
| June | 29°C / 84°F | 20°C / 68°F | 180 mm | 11 | 0 |
| July | 33°C / 91°F | 24°C / 75°F | 155 mm | 9 | 0 |
| August | 33°C / 91°F | 25°C / 77°F | 110 mm | 7 | 0 |
| September | 29°C / 84°F | 21°C / 70°F | 160 mm | 9 | 0 |
| October | 23°C / 73°F | 15°C / 59°F | 110 mm | 8 | 0 |
| November | 18°C / 64°F | 10°C / 50°F | 70 mm | 6 | 0 |
| December | 12°C / 54°F | 4°C / 39°F | 45 mm | 5 | 0 |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Osaka in August →
Frequently asked questions
How hot is Osaka in August?
In August, Osaka averages a high of 33°C (91°F) and a low of 25°C (77°F) — generally hot.
Does it rain a lot in Osaka in August?
August sees occasional rain in Osaka, with about 7 rainy days on average.
Is August a good time to visit Osaka?
August is hot. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Osaka in August?
Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full August packing list for Osaka for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.