The month in detail
What to expect in September
Autumn in Split is often underrated: 79°F, golden light and declining crowds. An interesting window. Rain risk remains low (25% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (9.3/10) remains theoretically better.
September ranks 3 out of 12 months in Split. Compared to August: −9°F daytime, 10 pts more rainy days, −2.6h of sun per day.
This month's conditions
What it's like in September
UV index
5 · moderate
protect during midday hours
Feels like
comfortable
14°
Sea
24°C
pleasant for swimming
Daylight
12.3h of daylight
Air quality
good
AQI 28
Compare
Is September the right month?
The best month in Split is June (9.3/10), 0.8 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Split
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Split
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.
Country · Croatia
🗣️LanguageCroatian
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 88°F
❄️Coolest monthJanuary · 52°F
🌧️Rainiest month ⓘNovember · 40%
🏖️ Beach trip
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Split ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
CroatiaTemperate oceanic climate with a 9.3 → 4.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
43.51°N · 16.44°E
Questions
Frequently asked questions
What is the best time to visit Split?
June is the best month with 82°F highs, 66°F lows, 10.6h of sunshine and 17.0% rainy days. The months of June & July offer comparable conditions.
How many hours of sunshine does Split get in June?
Split averages 10.6 sunshine hours per day in June. It is the sunniest month with a climate score of 8.9/10.
What is the rainiest month in Split?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Split in June?
In June, overnight lows reach 66°F, while afternoon highs average 82°F.
Is Split good in winter?
In winter (December-February), Split scores 4.0/10 on average — Difficult period — prefer the peak season.. The best month overall remains June with a score of 8.9/10.
When should you avoid Split?
January is the most difficult month to visit Split, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Split in September?
In September, the sea averages 75°F in Split: pleasant for swimming. Swimming is pleasant without a wetsuit.
Do you need sun protection in Split in September?
The average UV index reaches 5 in September in Split (moderate), with about 12.3h of daylight. Protect during midday hours.