Croatia is blessed with a seasonal climate, which means that it is hot and sunny during the summer months, and can be cold, windy and wet during the winter season. Its most useful pages are the current weather in Croatia, the 7-day forecast and the current sea temperatures. From mid to late May it is possible to swim. The Croatian coast has warm to hot summers and mild winters.
The weather in May starts to get warmer as tourists and locals alike start to enjoy the outdoor lifestyle Croatia is famous for. In Split, summers are short, hot and mostly clear, and winters are long, cold, wet, windy and partly cloudy. One famous – or infamous – aspect of Croatian weather that you may have heard about or experienced yourself is the “bura”.
Croatia and Slovenia are neighbouring countries and have a similar climate, although Slovenia is a bit colder. However, mild winters are good for sightseeing in the historic centres of Dubrovnik, Split and Zadar. Early May through June and September through early October are the low seasons and the time when most Rick Steves readers visit the country. However, the low seasons (May-June, September-October) offer milder weather, fewer crowds and cheaper activities and accommodations.
July and especially August are the high seasons when the boats, buses and budget accommodation are packed with mostly European holidaymakers. Visiting during these months means you get ideal weather without it being too hot or too cold, there are fewer crowds and prices for flights and accommodation are usually lower. Visiting Croatia in July or August is like spending spring break in Florida in a fun, but miserably crowded and hot way. The Adriatic Sea is usually warm, except during the winter, so swimming at the beach should be an option, especially if you go during the warmer summer months.
Temperatures are very pleasant, with average highs between 27 and 30 degrees Celsius (80.6 – 86 Fahrenheit). Winter temperatures range between -1 and 30 °C in the continental region, between -5 and 0 °C in the mountainous region and between 5 and 10 °C in the coastal region. September continues to have glorious sunny weather with warm temperatures, and the sea will also be warm enough for swimming. Summer temperatures range from 22-26°C in the mainland region, 15-20°C in the mountainous region and 26-30°C in the coastal region.
You can find all kinds of weather and climate statistics on the excellent website of the Croatian Meteorological Service; there is a lot of information in English. Their most useful pages are the current weather in Croatia, the 7-day forecast and the current sea temperatures.
This nationwide website presents weather and climate information for almost every country in the world. July and August, the hottest months of the summer, attract the most visitors, with very hot days and ideal water temperatures for swimming. The weather in September is still extremely warm from the summer, although it tends to be much more humid than in July and August. Travelling at this time provides visitors with pleasant, sunny weather and less crowds thanks to these months falling just outside the high season.
The weather in Split ranges from an average high temperature of 29.8 degrees Celsius in July and August to an average low temperature of 17.4 degrees Celsius in the pre- and post-season months of April and October. During the month of May, cities and ports fill with tourists, restaurants and bars start to come alive, museums open and extend their opening hours, and the weather tops it all off by heating up considerably.
The cool season lasts 4.0 months, from November 21 to March 20, with an average daily maximum temperature of less than 59°F. The warm season lasts 2.7 months, from June 17 to September 8, with an average daily temperature above 82°F. The brightest period of the year lasts 3.2 months, from 12 May to 18 August, with an average daily incident shortwave energy per square metre of more than 6.3 kWh. In inland areas there are average minimum temperatures below zero during all winter months between December and February.
The cloudiest month of the year in Split is December, during which, on average, the sky is cloudy or very cloudy 51% of the time. During the Croatian winter (November to March), you can focus on Zagreb or Split, when they are quieter and more relaxed. The calmest month of the year in Split is June, with an average hourly wind speed of 7.0 mph.
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