October 21 is generally a great time to visit Paris. While there is a slight chance of rain (34%), showers are usually brief. Expect comfortable 16°C weather. You'll enjoy Paris with reasonable crowd levels and competitive accommodation options.
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Essential Travel Info for Paris
Currency
EUR
€ Euro
Language
French
Driving
Right side
Connect
As of Sept 2021, Paris has 5G from all F...
Safety
High Safety
GPI: 1.895
Paris Weather Forecast for October 21
"Mild & Comfortable. Expect average highs of 16.1°C. 34% chance of rain."
What to Wear in Paris in October
Based on historical data for October 21, Paris typically experiences temperatures between 9.4°C and 16.1°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 34% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Paris
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
16.1°C
Daytime Peak
Average Low
9.4°C
Nighttime Low
Feels Like
16.1°C
🌤️ Feels accurate
Rain Chance
34%
Avg 1.9mm if it rains
Cloud Cover
68%
Overcast
Pressure
1013 hPa
High volatility
Paris Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 75% 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
🔴 80 min to burn
Type III-IV
🟡 120 min to burn
Type V-VI
🟢 200 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
13°C
Pleasant
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in France
Flight Traffic
Moderate
44/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~563
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Paris
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:20
☀️ Noon
12:36
🌇 Sunset
17:52
⏱️ Daylight
10h 31m
Wind Speed
19.8 km/h
Gentle breeze
Sunshine
5.7 hrs
Direct Sun (Cloud-free)
Humidity
82%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Paris
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 Paris
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Mild discomfort possible for arthritic conditions.
Fish are active due to pressure changes.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Paris on October 21 averages 16.1°C with a 34% precipitation probability. Wedding/Outdoor Event Score: 81/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Paris 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
17°C • 22% rain
Score
89
October 15
16.8°C • 25% rain
Score
88
October 16
16.7°C • 27% rain
Score
86
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 21) in other destinations
Barcelona
Spain
Rome
Italy
Lisbon
Portugal
Prague
Czech Republic
London
United Kingdom
🌍 Explore the same date in different destinations around the world
📍 Is Paris Worth Visiting on October 21?
Planning a trip to Paris 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 16.1°C with a 34% historical precipitation risk.
✈️ Travel Logistics: Approximately 563 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for France, including COVID-19.
📊 Historical Extremes: The hottest October 21 recorded in the last 30 years saw temperatures hit 21°C in 2024, while the coldest dropped to 4.6°C in 2021.