July 30 is generally a great time to visit Osaka. While there is a slight chance of rain (17%), showers are usually brief. Expect comfortable 33°C weather. Osaka is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Osaka
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Safety
Very High Safety
GPI: 1.336
Osaka Weather Forecast for July 30
"Warm & Sunny. Expect average highs of 32.5°C. 17% chance of rain."
What to Wear in Osaka in July
Based on historical data for July 30, Osaka typically experiences temperatures between 25.2°C and 32.5°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (17% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Osaka
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
32.5°C
Daytime Peak
Average Low
25.2°C
Nighttime Low
Feels Like
44°C
🔥 Heat index effect
Rain Chance
17%
Avg 1.4mm if it rains
Cloud Cover
56%
Light drizzle
Pressure
1009.1 hPa
Medium volatility
Osaka Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 94% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 14 min to burn
Type III-IV
🟡 21 min to burn
Type V-VI
🟢 35 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
27.5°C
Humid/Sticky
Heat Index
44°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Japan
Flight Traffic
High
98/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~273
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Osaka
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:07
☀️ Noon
12:05
🌇 Sunset
19:04
⏱️ Daylight
13h 56m
Wind Speed
13.7 km/h
Gentle breeze
Sunshine
11.4 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Osaka
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Osaka
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Typhoon Risk
Year-round risk present
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Osaka on July 30 averages 32.5°C with a 17% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Osaka Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
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📍 Is Osaka Worth Visiting on July 30?
Planning a trip to Osaka on July 30? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 32.5°C with a 17% historical precipitation risk.
✈️ Travel Logistics: Approximately 273 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Japan, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 31°C (hot soup). Wave conditions are generally lake-like with heights around 0.28m.
📊 Historical Extremes: The hottest July 30 recorded in the last 30 years saw temperatures hit 38.4°C in 2025, while the coldest dropped to 24.3°C in 2016.