Croatia in September: where is it warmest?
In September, Makarska is the warmest place with 25 °C by day, Varaždin the coolest with 21 °C. 30 of 34 destinations have good holiday weather.
All destinations in September, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Makarska | 82 | 25° | 23° | 8 h | 9 |
| Knin | 88 | 24° | – | 8 h | 8 |
| Zadar | 84 | 24° | 23° | 8 h | 8 |
| Trogir | 84 | 24° | 23° | 8 h | 7 |
| Dubrovnik | 81 | 24° | 24° | 8 h | 9 |
| Šibenik | 81 | 24° | 23° | 8 h | 7 |
| Osijek | 83 | 23° | – | 7 h | 8 |
| Vukovar | 83 | 23° | – | 7 h | 9 |
| Vis | 78 | 23° | 23° | 8 h | 7 |
| Split | 77 | 23° | 23° | 8 h | 7 |
| Nin | 77 | 23° | 23° | 8 h | 8 |
| Hvar | 75 | 23° | 23° | 8 h | 7 |
| Rovinj | 73 | 23° | 23° | 8 h | 10 |
| Omiš | 73 | 23° | 23° | 8 h | 8 |
| Poreč | 71 | 23° | 23° | 7 h | 10 |
| Novigrad | 71 | 23° | 23° | 7 h | 10 |
| Vrsar | 71 | 23° | 23° | 7 h | 10 |
| Pula | 70 | 23° | 23° | 8 h | 10 |
| Medulin | 70 | 23° | 23° | 8 h | 10 |
| Fažana | 70 | 23° | 23° | 8 h | 10 |
| Umag | 68 | 23° | 23° | 7 h | 10 |
| Senj | 61 | 23° | 22° | 7 h | 11 |
| Krk | 61 | 23° | 22° | 7 h | 11 |
| Rab | 61 | 23° | 22° | 7 h | 11 |
| Opatija | 60 | 23° | 21° | 8 h | 10 |
| Rijeka | 57 | 23° | 21° | 7 h | 12 |
| Motovun | 80 | 22° | – | 7 h | 10 |
| Zagreb | 77 | 22° | – | 6 h | 10 |
| Karlovac | 77 | 22° | – | 6 h | 10 |
| Mali Lošinj | 65 | 22° | 22° | 8 h | 9 |
| Crikvenica | 57 | 22° | 21° | 7 h | 11 |
| Labin | 56 | 22° | 21° | 7 h | 10 |
| Cres | 55 | 22° | 22° | 7 h | 11 |
| Varaždin | 78 | 21° | – | 6 h | 10 |
Croatia in September: quick answers
Croatia in September: where is it warmest?
The warmest places in September are Makarska (25 °C), Knin (24 °C) and Zadar (24 °C).
Croatia in September: where is the sea warmest?
The sea is warmest at Dubrovnik (24 °C), Makarska (23 °C) and Zadar (23 °C).
Croatia in September: where is the weather best?
The best holiday weather in September – warm, sunny and dry – is in Knin, Zadar and Trogir.
Croatia month by month
Croatia: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences