October 21 is generally a great time to visit Naples. While there is a slight chance of rain (31%), showers are usually brief. Expect comfortable 21°C weather. Expect a bustling atmosphere in Naples right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Naples
Currency
EUR
€ Euro
Language
Italian
+1 more
Driving
Right side
Connect
As of Sept 2021, Naples has 4G from Ilia...
Safety
High Safety
GPI: 1.643
Naples Weather Forecast for October 21
"Mild & Comfortable. Expect average highs of 21.3°C. 31% chance of rain."
What to Wear in Naples in October
Based on historical data for October 21, Naples typically experiences temperatures between 14.1°C and 21.3°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 31% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Naples
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
21.3°C
Daytime Peak
Average Low
14.1°C
Nighttime Low
Feels Like
21.6°C
☀️ Feels accurate
Rain Chance
31%
Avg 3mm if it rains
Cloud Cover
50%
Overcast
Pressure
1017 hPa
Medium volatility
Naples Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 94% 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
17.9°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 Italy
Flight Traffic
High
86/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~127
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Naples
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:21
☀️ Noon
11:48
🌇 Sunset
17:15
⏱️ Daylight
10h 54m
Wind Speed
13.2 km/h
Gentle breeze
Sunshine
8.0 hrs
Direct Sun (Cloud-free)
Humidity
81%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Naples
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Naples
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
Moderate seismic activity. Occasional tremors possible.
Volcanic Activity
Nearest: Mount Vesuvius
13.8km away
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, Naples on October 21 averages 21.3°C with a 31% precipitation probability. Wedding/Outdoor Event Score: 95/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Naples Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 28
20.9°C • 19% rain
Score
99
October 14
21.9°C • 23% rain
Score
98
October 15
21.6°C • 22% rain
Score
98
💡 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 Naples Worth Visiting on October 21?
Planning a trip to Naples 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 21.3°C with a 31% historical precipitation risk.
✈️ Travel Logistics: Approximately 127 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Italy, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 22.1°C (swimming pool). Wave conditions are generally fun waves with heights around 0.79m.
📊 Historical Extremes: The hottest October 21 recorded in the last 30 years saw temperatures hit 26°C in 2019, while the coldest dropped to 8.7°C in 2020.