Japan Osaka Weather in July — Climate Guide
July in Osaka is Average
July is Average for Osaka.
July is Tenjin Matsuri month — Osaka's biggest annual festival on July 24-25, attracting 1.3+ million visitors over two days. The land procession on July 24 is a colorful afternoon parade through downtown; the river procession on July 25 features 100+ illuminated boats and 5,000 fireworks over the Okawa River. This is THE event for an Osaka summer visit. Book hotels 3-4 months ahead for festival dates.
The rainy season typically ends July 15-20, giving way to brutal heat and humidity. Daily highs hit 31-34°C / 88-93°F with 70-80% humidity. Heat exhaustion is real — hydrate aggressively, take breaks in air-conditioned spots (department stores, USJ indoor zones, aquarium).
Travel score
Osaka July Weather Stats
Avg High
31.6°C
Avg Low
24°C
Rainy Days
11
174mm total
Sunshine
5.5h
Daily avg
Humidity
73%
Very humid
UV Index
10
Very high
Wind
8 km/h
Gusts 17
Sea Temp
25°C
Avg water temp
Crowds
Moderate
At attractions
July Sunrise & Sunset
Air Quality
PM2.5
21 μg/m³
PM10
30 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
36°C
Nighttime
25°C
Humidity and wind affect how the actual temperature feels.
Wind
8 km/h
Max gust 17 km/h
Activities Recommended for July
July Travel Pros & Cons
Pros
- Tenjin Matsuri (July 24-25) — once-in-a-lifetime spectacle
- All summer matsuri (festivals) running weekends
- Long daylight for outdoor activities
Cons
- Brutally hot and humid — heat exhaustion risk real
- Late July school holidays push USJ to maximum capacity
- Tenjin Matsuri week sees hotel rates spike 100-200%
July Events & Festivals
- Tenjin Matsuri (July 24-25) — Osaka's biggest festival, third largest in Japan
- Tsuyu rainy season ends mid-July
- Summer school holidays begin (July 20) — domestic crowds increase
Osaka in July — Full Picture
July is Tenjin Matsuri month — Osaka's biggest annual festival on July 24-25, attracting 1.3+ million visitors over two days. The land procession on July 24 is a colorful afternoon parade through downtown; the river procession on July 25 features 100+ illuminated boats and 5,000 fireworks over the Okawa River. This is THE event for an Osaka summer visit. Book hotels 3-4 months ahead for festival dates.
The rainy season typically ends July 15-20, giving way to brutal heat and humidity. Daily highs hit 31-34°C / 88-93°F with 70-80% humidity. Heat exhaustion is real — hydrate aggressively, take breaks in air-conditioned spots (department stores, USJ indoor zones, aquarium).
Late July starts Japanese school summer holidays, which mean domestic family travelers fill up Universal Studios Japan and family-oriented attractions. Express Pass at USJ becomes essential.
Upsides: long daylight (sunset 7:15 PM), all outdoor cafés and beer gardens at peak, fireworks displays multiple weekends, summer matsuri (festivals) every weekend in July-August.
What to Wear & What to Pack
Light short sleeves, breathable fabrics, hat for sun protection. Cooling sheets (Hiyaron from konbini) are local lifesavers. Folding umbrella for both sun and rain.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
19.4°C
10.7°C
9/mo
Summer (Jun·Jul·Aug)
Current30.9°C
23.1°C
10/mo
Autumn (Sep·Oct·Nov)
23.6°C
15.9°C
7.7/mo
Winter (Dec·Jan·Feb)
10.7°C
3.6°C
5.3/mo
Osaka Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 9.5° | 2.8° | 5d·47mm | 5.5h | 60% | 2 | Quiet | Low season | |
| 10.4° | 2.9° | 6d·60mm | 6.1h | 60% | 3 | Quiet | Low season | |
| March (Best) | 13.7° | 5.7° | 9d·104mm | 6.4h | 62% | 4 | Busy | Peak |
| April (Best) | 19.9° | 10.7° | 9d·103mm | 6.5h | 64% | 6 | Very busy | Peak |
| May (Best) | 24.5° | 15.6° | 9d·134mm | 6.7h | 67% | 8 | Busy | Peak |
| 27.8° | 19.9° | 12d·187mm | 4.7h | 72% | 9 | Moderate | Shoulder | |
| 31.6° | 24° | 11d·174mm | 5.5h | 73% | 10 | Moderate | Shoulder | |
| 33.4° | 25.3° | 7d·113mm | 6.3h | 70% | 10 | Busy | Peak | |
| 29.5° | 22° | 9d·153mm | 6.2h | 71% | 7 | Moderate | Shoulder | |
| October (Best) | 23.7° | 16° | 8d·130mm | 5.9h | 67% | 5 | Busy | Peak |
| November (Best) | 17.6° | 9.7° | 6d·73mm | 5.8h | 64% | 3 | Busy | Peak |
| 12.3° | 5° | 5d·49mm | 5.7h | 60% | 2 | Busy | Peak |
View Other Months
Osaka July Hotel Picks
Frequently Asked Questions
Is July a good time to visit Osaka?
Osaka in July is Average. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Osaka in July?
Osaka July averages a high of 31.6°C and a low of 24°C.
Does it rain much in Osaka in July?
Osaka July averages 174mm of rainfall over about 11 rainy days.
What should I wear in Osaka in July?
Light short sleeves, breathable fabrics, hat for sun protection. Cooling sheets (Hiyaron from konbini) are local lifesavers. Folding umbrella for both sun and rain.
What time are sunrise and sunset in Osaka in July?
Osaka July sunrise is 04:55 and sunset is 19:14, with 14h 19m of daylight.
What's the air quality like in Osaka in July?
Osaka July air quality (AQI) averages 48, rated Good. PM2.5 averages 21μg/m³.
What activities are recommended in Osaka in July?
In July, Osaka is great for Tenjin Matsuri (July 24-25), Summer fireworks, Beer gardens.
Is July peak season in Osaka?
Osaka July crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Osaka
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.