May 21 is generally a great time to visit Nice. While there is a slight chance of rain (15%), showers are usually brief. Expect comfortable 22°C weather. Nice is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Nice
Currency
EUR
€ Euro
Language
French
Driving
Right side
Connect
As of Sept 2021, Nice has 5G from all Fr...
Safety
High Safety
GPI: 1.895
Nice Weather Forecast for May 21
"Mild & Comfortable. Expect average highs of 21.5°C. 15% chance of rain."
What to Wear in Nice in May
Based on historical data for May 21, Nice typically experiences temperatures between 14°C and 21.5°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (15% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Nice
Smart Suitcase
- Light Jacket
- Long Pants
Average High
21.5°C
Daytime Peak
Average Low
14°C
Nighttime Low
Feels Like
21.7°C
☀️ Feels accurate
Rain Chance
15%
Avg 0.9mm if it rains
Cloud Cover
48%
Overcast
Pressure
1014 hPa
Medium volatility
Nice Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 97% 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
🔴 15 min to burn
Type III-IV
🟡 23 min to burn
Type V-VI
🟢 38 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.7°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
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in France
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~212
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nice
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:01
☀️ Noon
12:28
🌇 Sunset
19:56
⏱️ Daylight
14h 54m
Wind Speed
10.8 km/h
Light breeze
Sunshine
11.7 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nice
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Nice
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Nice on May 21 averages 21.5°C with a 15% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nice Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (May 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nice Worth Visiting on May 21?
Planning a trip to Nice on May 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 21.5°C with a 15% historical precipitation risk.
✈️ Travel Logistics: Approximately 212 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for France, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 19°C (refreshing tonic). Wave conditions are generally fun waves with heights around 0.64m.
📊 Historical Extremes: The hottest May 21 recorded in the last 30 years saw temperatures hit 25.1°C in 2024, while the coldest dropped to 12°C in 2016.