Osaka in Summer — Weather & What to Expect
Summer in Osaka (June, July, August) averages daytime highs of 29.9°C and lows of 23.0°C, with around 685.3mm of rain across the season (45 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Osaka covers June, July, August.
Summer in Osaka month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 26.7°C | 19.5°C | 216.3mm | 13 | 8/10 |
| July | 30.4°C | 24.0°C | 281.2mm | 18 | 8/10 |
| August | 32.5°C | 25.6°C | 187.8mm | 14 | 9/10 |
What to pack for Osaka in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
- Lightweight, breathable clothing
- High SPF sunscreen
Frequently Asked Questions
Is summer a good time to visit Osaka?
Summer in Osaka rates around 8/10 — good time to visit. Average highs are 29.9°C with 685.3mm of rain across the season.
How hot is Osaka in summer?
Daytime highs average 29.9°C (85.8°F) across June, July, August, with nights around 23.0°C.
What months are summer in Osaka?
Osaka is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Osaka · Osaka annual climate · Osaka in spring · Osaka in autumn · Osaka in winter
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Once you know what summer in Osaka looks like, find out exactly what to pack for Osaka at 247PackingList. For currency, language and country facts, see the Japan guide at 247CountryInfo.
Summer in Osaka — what to pack
Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →Check clothing sizes in Japan at 247Sizing before you shop.
More summer travel essentials
Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.