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Croatia weather in September 2025
Expect 25°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Croatia in September. Check more long-term weather averages for Croatia in September before you book your next holiday to Croatia in 2025/2026.
- 25°C max day temperature
25 - 8 hours of sunshine per day
- 10 days with some rainfall
10 - 14°C min night temperature
14 - 12 hours of daylight per day
12 - Low heat & humidity
L - 75 mm of monthly rainfall
75 - 5 (Moderate) UV index
5 - 22°C sea temperature
22
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The September weather guide for Croatia (Split) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Croatia destinations
Below are average maximum temperatures at popular countries, regions and places in Croatia in September. Select a holiday destination to see more weather parameters.
All Croatia destinations
- Baska Voda
- Bol
- Brela
- Cavtat
- Drvenik
- Dubrovnik
- Hvar
- Jelsa
- Korcula
- Lopud
- Loviste
- Makarska
- Mlini
- Novigrad
- Opatija
- Orasac
- Orebic
- Osijek
- Pag
- Plat
- Pomena
- Porec
- Postira
- Primosten
- Pucisca
- Pula
- Rab
- Rabac
- Ravni
- Rijeka
- Rovinj
- Sibenik
- Slano
- Split
- Stari Grad
- Supetar
- Trogir
- Trpanj
- Tucepi
- Umag
- Vodice
- Vrsar
- Zadar
- Zagreb
Metric (°C / mm) | Imperial (°F / inches)
More about Croatia
How hot is it in Croatia in September?
Daytime temperatures usually reach 25°C in Split, Croatia in September with low heat and humidity, falling to 14°C at night.
How sunny is it in Croatia in September?
There are normally 8 hours of bright sunshine each day in Split, Croatia in September - that's 62% of daylight hours.
How warm is the sea around Croatia in September?
The average sea temperature around Split, Croatia in September is 22°C.
Does it rain in Croatia in September?
There are usually 10 days with some rain in Split, Croatia in September and the average monthly rainfall is 75mm.
Croatia September sunrise & sunset times
Browse the sunrise and sunset times for Croatia in September 2025. Select a month to view Croatia sunrise and sunset times for the next 12 months. The Croatia sunrise and sunset times shown below are for Split.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st September 2025 | 05:18 | 18:29 |
| Monday, 15th September 2025 | 05:34 | 18:04 |
| Tuesday, 30th September 2025 | 05:51 | 17:37 |
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