Split sea temperature today: 26°C – beach water temperature, Split, Croatia
Interactive map
Croatia · Mediterranean
Split
Sea
25.7°C78.3°F
Air
–
UV
–
Beach day
⁦23–28°C⁩

Last updated ·

Today, September 13, the sea temperature at Split is 25.7 °C (78 °F). That is 3.1 °C warmer than the usual 22.6 °C in September. Comfortable for swimming from June to October.

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Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in August (24.5°C). Coldest in February (12.3°C). Comfortable for swimming from June to October.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January13.2°C13.6°C13.9°C7.3°C8.3°C9.8°C
February11.8°C12.3°C12.6°C7.6°C9.0°C10.9°C
March11.6°C12.4°C13.1°C8.6°C10.3°C12.2°C
April13.1°C13.9°C15.1°C11.0°C12.8°C14.4°C
May16.6°C17.4°C18.0°C15.6°C17.4°C18.8°C
June21.3°C21.9°C22.3°C20.5°C22.6°C24.3°C
July24.0°C24.5°C25.1°C23.0°C25.1°C26.7°C
August23.5°C24.5°C25.4°C22.6°C24.6°C26.2°C
September22.0°C22.6°C23.2°C19.2°C21.0°C22.6°C
October18.7°C19.8°C20.9°C15.7°C17.2°C18.8°C
November16.7°C17.8°C18.6°C11.9°C12.9°C14.2°C
December14.4°C15.0°C15.5°C9.1°C10.0°C11.2°C

About Split

Central Dalmatia's anchor city is Split, built around Diocletian's Palace – the Roman emperor's fortified retirement complex completed in 305 AD and inscribed by UNESCO in 1979, with residents still living inside its 220-metre seafront walls. East of the harbour, Bačvice Beach is the city's shallow urban sand, home to the local Picigin ball game; westward on the Marjan peninsula, Kasjuni Beach is pebbly and pine-shaded with clearer water. Sea temperatures hold 24–26 °C75–79 °F from July through September, with Split Airport 25 minutes west by the D8.

Frequently asked questions

Today, September 13, the sea at Split is 25.7 °C (78 °F)78 °F (25.7 °C) – ideal for swimming for most people. The usual September average is 22.6 °C73 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Split is 25.7 °C78 °F.

In May the sea at Split (Croatia) averages 17.4 °C63 °F – cold, most people reach for a wetsuit. It keeps warming until August, when it peaks at 24.5 °C76 °F.

In October the sea at Split (Croatia) still averages 19.8 °C68 °F – refreshing, good for a short swim. It peaks in August at 24.5 °C76 °F and cools slowly from there.