October 21 is generally a great time to visit Nagoya. While there is a slight chance of rain (29%), showers are usually brief. Expect comfortable 21°C weather. It's a lively time to explore Nagoya, with most attractions operating at full capacity.
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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 October 21
"Mild & Comfortable. Expect average highs of 21°C. 29% chance of rain."
What to Wear in Nagoya in October
Based on historical data for October 21, Nagoya typically experiences temperatures between 12.4°C and 21°C. We recommend packing light jacket, long pants to stay comfortable. With a 29% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Nagoya
Smart Suitcase
- Light Jacket
- Long Pants
Average High
21°C
Daytime Peak
Average Low
12.4°C
Nighttime Low
Feels Like
21.2°C
☀️ Feels accurate
Rain Chance
29%
Avg 3mm if it rains
Cloud Cover
53%
Overcast
Pressure
1018.2 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 96% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 53 min to burn
Type III-IV
🟡 80 min to burn
Type V-VI
🟢 133 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.8°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
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
Busy
78/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~119
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nagoya
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:04
☀️ Noon
11:38
🌇 Sunset
17:12
⏱️ Daylight
11h 8m
Wind Speed
11.9 km/h
Light breeze
Sunshine
7.4 hrs
Direct Sun (Cloud-free)
Humidity
77%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nagoya
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Nagoya
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
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 October 21 averages 21°C with a 29% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— 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
October 14
23°C • 26% rain
Score
97
October 15
22.7°C • 26% rain
Score
97
October 16
22.3°C • 27% rain
Score
97
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nagoya Worth Visiting on October 21?
Planning a trip to Nagoya on October 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 21°C with a 29% historical precipitation risk.
✈️ Travel Logistics: Approximately 119 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 22.5°C (swimming pool). Wave conditions are generally lake-like with heights around 0.4m.
📊 Historical Extremes: The hottest October 21 recorded in the last 30 years saw temperatures hit 22.2°C in 2024, while the coldest dropped to 7.8°C in 2022.