September 23 is generally a great time to visit Split. While there is a slight chance of rain (24%), showers are usually brief. Expect comfortable 23°C weather. You'll find plenty of company in Split this month as tourism activity remains quite robust.
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Essential Travel Info for Split
Currency
EUR
€ Euro
Language
Croatian
Driving
Right side
Connect
Split has good 4+G and 5G speed from Tel...
Safety
Very High Safety
GPI: 1.44
Split Weather Forecast for September 23
"Mild & Comfortable. Expect average highs of 23.4°C. 24% chance of rain."
What to Wear in Split in September
Based on historical data for September 23, Split typically experiences temperatures between 15.6°C and 23.4°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (24% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Split
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
23.4°C
Daytime Peak
Average Low
15.6°C
Nighttime Low
Feels Like
23.9°C
☀️ Feels accurate
Rain Chance
24%
Avg 2.2mm if it rains
Cloud Cover
39%
Overcast
Pressure
1015.8 hPa
Medium volatility
Split Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 95% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 09:30
16:00 - 17:00
Type I-II
🔴 25 min to burn
Type III-IV
🟡 38 min to burn
Type V-VI
🟢 63 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
17.4°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 Croatia
Flight Traffic
Busy
72/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~61
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Split
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:43
☀️ Noon
11:48
🌇 Sunset
17:52
⏱️ Daylight
12h 9m
Wind Speed
15 km/h
Gentle breeze
Sunshine
9.7 hrs
Direct Sun (Cloud-free)
Humidity
69%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Split
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Split
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
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Split on September 23 averages 23.4°C with a 24% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Split Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 23) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Split Worth Visiting on September 23?
Planning a trip to Split on September 23? 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 23.4°C with a 24% historical precipitation risk.
✈️ Travel Logistics: Approximately 61 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Croatia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 23.9°C (swimming pool). Wave conditions are generally lake-like with heights around 0.34m.
📊 Historical Extremes: The hottest September 23 recorded in the last 30 years saw temperatures hit 27.8°C in 2018, while the coldest dropped to 11.4°C in 2022.