September 17 is statistically one of the best days of the year in Cagliari. With minimal rain risk (9%) and pleasant highs of 28°C, it's ideal for outdoor adventures. Cagliari is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Cagliari
Currency
EUR
€ Euro
Language
Italian
+1 more
Driving
Right side
Connect
As of June 2023, Cagliari has 5G recepti...
Safety
High Safety
GPI: 1.643
Cagliari Weather Forecast for September 17
"Warm & Sunny. Expect average highs of 27.5°C. 9% chance of rain."
What to Wear in Cagliari in September
Based on historical data for September 17, Cagliari typically experiences temperatures between 19.3°C and 27.5°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (9% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Cagliari
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
27.5°C
Daytime Peak
Average Low
19.3°C
Nighttime Low
Feels Like
29.5°C
🔥 Minor difference
Rain Chance
9%
Avg 0.4mm if it rains
Cloud Cover
41%
Overcast
Pressure
1015.3 hPa
Low volatility
Cagliari 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
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 24 min to burn
Type III-IV
🟡 36 min to burn
Type V-VI
🟢 60 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
21.1°C
Humid/Sticky
Heat Index
29.5°C
Feels hotter
🙂 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
89/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~75
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Cagliari
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:07
☀️ Noon
12:19
🌇 Sunset
18:31
⏱️ Daylight
12h 23m
Wind Speed
18 km/h
Gentle breeze
Sunshine
10.6 hrs
Direct Sun (Cloud-free)
Humidity
68%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Cagliari
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Cagliari
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
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, Cagliari on September 17 averages 27.5°C with a 9% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Cagliari Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 17) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Cagliari Worth Visiting on September 17?
Planning a trip to Cagliari on September 17? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.5°C with a 9% historical precipitation risk.
✈️ Travel Logistics: Approximately 75 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 25.4°C (tropical bath). Wave conditions are generally lake-like with heights around 0.43m.
📊 Historical Extremes: The hottest September 17 recorded in the last 30 years saw temperatures hit 31.5°C in 2023, while the coldest dropped to 15.6°C in 2024.