July 21 is generally a great time to visit Nagoya. While there is a slight chance of rain (28%), showers are usually brief. Expect comfortable 31°C weather. Expect a bustling atmosphere in Nagoya right now—this is when the city truly comes alive with visitors. Note: July 21 is Marine Day in Nagoya, so expect special events, closures, and festive atmosphere.
View the full calendar
Essential Travel Info for Nagoya
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Safety
Very High Safety
GPI: 1.336
Nagoya Weather Forecast for July 21
"Warm & Sunny. Expect average highs of 30.6°C. 28% chance of rain."
What to Wear in Nagoya in July
Based on historical data for July 21, Nagoya typically experiences temperatures between 23°C and 30.6°C. We recommend packing t-shirt, light clothing to stay comfortable. With a 28% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Nagoya
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
30.6°C
Daytime Peak
Average Low
23°C
Nighttime Low
Feels Like
39.6°C
🔥 Heat index effect
Rain Chance
28%
Avg 2.6mm if it rains
Cloud Cover
65%
Overcast
Pressure
1010.2 hPa
Medium volatility
Nagoya Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
04:00 - 10:00
16:00 - 19:00
Type I-II
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.7°C
Humid/Sticky
Heat Index
39.6°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
Holiday
Marine Day
Flight Traffic
High
95/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~145
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nagoya
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:53
☀️ Noon
11:59
🌇 Sunset
19:05
⏱️ Daylight
14h 11m
Wind Speed
13.1 km/h
Gentle breeze
Sunshine
10.1 hrs
Direct Sun (Cloud-free)
Humidity
80%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nagoya
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Nagoya
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, Nagoya on July 21 averages 30.6°C with a 28% precipitation probability. Wedding/Outdoor Event Score: 88/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nagoya Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
July 22
30.8°C • 24% rain
Score
90
July 23
31°C • 24% rain
Score
89
July 24
31.2°C • 25% rain
Score
89
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (July 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nagoya Worth Visiting on July 21?
Planning a trip to Nagoya on July 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 30.6°C with a 28% historical precipitation risk.
🎉 Local Event: The date coincides with Marine Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 145 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 28.3°C (tropical bath). Wave conditions are generally lake-like with heights around 0.28m.
📊 Historical Extremes: The hottest July 21 recorded in the last 30 years saw temperatures hit 34°C in 2024, while the coldest dropped to 21.4°C in 2016.