Weather in Split in March

How March compares

March is the 9th warmest month of the year in Split and ranks 114th of 134 destinations we compare for March - see where else is hot in March. Within Croatia it is 2nd of 4 (Croatia in March). Against London's average high of 10.5°C in March, Split is 3.3°C warmer by day and 3.1°C warmer at night.

Daytime and night-time in March

The typical March day in Split peaks at 13.8°C, but that is an average: the warmest 10% of days reach 17.5°C or more. Days over 25°C are rare. Nights average 6.4°C; one night in ten drops to 2.0°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest March day here reached 23.5°C (2017-03-30) and the coldest night -5.0°C (2005-03-01).

Rain in March

Wet (more than 8 rainy days): about 10 days with 1 mm or more, 103 mm in total. Year to year it varies a lot - the wettest March was 2018 with 257 mm, the driest 2012 with 1 mm. Humidity averages 71%.

Sea temperature in March

The sea averages 12.8°C - too cold for most (under 18°c). Depending on the year it ranges from 12.1°C to 13.8°C. For the warmest sea here, come in August (24.6°C).

Sunshine and daylight

Around 5.8 hours of sunshine a day (estimated from cloud cover), 11.7 hours of daylight: the sun rises about 06:06 and sets about 18:00 local time in mid-March. Average cloud cover is 51%.

Is March a good time to visit Split?

March is not the strongest month here: cool days and frequent rain. The best months for Split on our scoring are August, July, June; months averaging 25°C or more: Jun, Jul, Aug.

Milder than London, but still jacket weather

Split is milder than London in March, but the difference is not enough to make it a warm-weather trip. Its average daytime high is 3.3°C above London's 10.5°C, so think of a gentler spring day rather than summer conditions. The warmest 10% of days reach 17.5°C or more, which could make a sheltered outdoor break pleasant. Evenings are a different matter: the coldest 10% of nights fall to 2°C or below. Pack layers you can adjust during the day, plus a warm jacket for after dark. This month suits travellers who prefer walking in cool air to dealing with midday heat.

Allow for rain without writing off outdoor plans

Rain is a meaningful catch in March, with about 10 rainy days, so a trip built entirely around being outdoors is a gamble. Bring a waterproof jacket and shoes you are comfortable walking in when it is wet, and leave room to rearrange plans. There is still useful sunshine: about 5.8 hours a day within 11.7 hours of daylight. That makes outdoor time reasonable to plan for, but not something to count on throughout your stay. Keep dry-weather activities flexible rather than tying them to a particular day, and have an indoor alternative ready when the forecast looks less promising.

Treat the sea as a backdrop, not the main activity

The sea is the clearest reason to rule March out if swimming is central to your holiday. At an average of 12.8°C, it is firmly cold rather than merely bracing. The year-to-year range of 12°C to 14°C offers little reassurance for anyone hoping that a milder year will bring comfortable bathing. Time beside the water is a more realistic plan than time in it, with enough clothing to stay comfortable when you stop moving. A sunny afternoon does not mean the sea will feel warm. For this trip, prioritise comfortable walking clothes and waterproofs over a holiday wardrobe centred on swimming.