August 16 is generally a great time to visit Osaka. While there is a slight chance of rain (36%), showers are usually brief. Expect comfortable 32°C weather. As it's peak season for Osaka, we recommend booking your stay well in advance to secure the best rates.
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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 August 16
"Warm & Sunny. Expect average highs of 31.9°C. 36% chance of rain."
What to Wear in Osaka in August
Based on historical data for August 16, Osaka typically experiences temperatures between 25°C and 31.9°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 36% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Osaka
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
31.9°C
Daytime Peak
Average Low
25°C
Nighttime Low
Feels Like
42°C
🔥 Heat index effect
Rain Chance
36%
Avg 3.2mm if it rains
Cloud Cover
60%
Overcast
Pressure
1008.9 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 78% 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 - 18:00
Type I-II
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.9°C
Humid/Sticky
Heat Index
42°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
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
~275
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Osaka
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:20
☀️ Noon
12:03
🌇 Sunset
18:47
⏱️ Daylight
13h 27m
Wind Speed
14 km/h
Gentle breeze
Sunshine
9.8 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
unlock smart flight estimates
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Travel Health & Safety in Osaka
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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 August 16 averages 31.9°C with a 36% precipitation probability. Wedding/Outdoor Event Score: 84/100."
— 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
Better Alternatives Nearby
Consider these dates within ±7 days
August 9
32.5°C • 22% rain
Score
96
August 19
32°C • 28% rain
Score
96
August 20
32°C • 30% rain
Score
95
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
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📍 Is Osaka Worth Visiting on August 16?
Planning a trip to Osaka on August 16? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 31.9°C with a 36% historical precipitation risk.
✈️ Travel Logistics: Approximately 275 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 29.4°C (hot soup). Wave conditions are generally lake-like with heights around 0.39m.
📊 Historical Extremes: The hottest August 16 recorded in the last 30 years saw temperatures hit 35.7°C in 2020, while the coldest dropped to 22.4°C in 2021.