Sea temperature in Croatia in April
average across 6 DHMZ stations, 1996-2025 - station averages run from 12.7 to 15.3 °C
| Station | Average | Coldest year | Warmest year | Record low | Record high |
|---|---|---|---|---|---|
| Rovinj-Sv.Ivan n/p | 12.7 °C | 10.8 °C (2005) | 15.5 °C (2024) | 9.6 °C | 17.3 °C |
| Pula | 14.2 °C | 12.1 °C (2003) | 16.4 °C (2007) | 9.8 °C | 19.5 °C |
| Rab | 14.4 °C | 12.8 °C (1997) | 16.7 °C (2007) | 10.6 °C | 20.6 °C |
| Šibenik | 15.3 °C | 13.3 °C (1997) | 17.1 °C (2007) | 12.5 °C | 21.0 °C |
| Split | 15.0 °C | 12.9 °C (1997) | 17.1 °C (2024) | 12.0 °C | 20.5 °C |
| Hvar | 15.2 °C | 13.6 °C (1997) | 16.6 °C (2024) | 12.8 °C | 19.1 °C |
At these stations in April the sea averaged 13.7 °C in 1996-2005 and 14.9 °C in 2016-2025 - 1.2 °C warmer.
These are the readings as the instruments recorded them, not a homogenised climate series: station moves and instrument changes are not corrected for.
← March · Sea temperature in Croatia by month · May →
How this is measured
Daily sea-surface observations at the 14:00 term, averaged over 1996-2025. A station appears here only when at least 20 of those years carry a full month of readings; stations with a shorter series are left out rather than averaged into a normal they cannot support. The Croatia-wide figure is the unweighted mean of the stations shown, not a coastline average.
Source: DHMZ — Državni hidrometeorološki zavod, archive data supplied on request. https://meteo.hr/