Magical Split
The best travel time to Split in Croatia is from May til October and the best months are May, June and September.
Opatija in March sees low daytime temperatures of 12°C (54°F) and nighttime lows of 4°C (39°F). Rainfall is fairly high this month at around 138 mm (5.4 in), so pack a rain jacket to stay dry.
March in Opatija has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Opatija - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Opatija typically rise from around 12°C (54°F) at the start of March to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 7°C (45°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Opatija spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Opatija from 1976 through 2026.
Find out more about the weather in Croatia and which places have the best travel conditions in this month. See all of Croatia in March →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pack for changing conditions in Opatija in March. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 11°C (52°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Opatija climate overview or explore weather in Croatia.
Where to go in March - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Magical Split
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