Croatia in August: Weather, Crowds & What to Expect
Climate Map for August
Average temperature across Croatia in August.
City Weather in August
| City | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| Zagreb | 26° | 16° | 92 mm | high | Mild |
| Split | 30° | 21° | 46 mm | very high | Warm |
| Rijeka | 28° | 19° | 92 mm | high | Mild |
| Zadar | 29° | 18° | 49 mm | very high | Mild |
| Pula | 28° | 19° | 61 mm | very high | Mild |
| Karlovac | 27° | 14° | 97 mm | high | Mild |
| Šibenik | 30° | 19° | 40 mm | very high | Warm |
High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.
Istria & Kvarner (Northern Adriatic)
August keeps peak-summer heat and busy harbors, and occasional afternoon thunderstorms can break the heat - they are typically short but intense. Coastal evenings stay warm; festivals and outdoor dining continue late into the night. Travelers who dislike crowds should choose weekday travel or explore lesser-known peninsulas; always carry water and a sun hat, and book tickets for ferries and cultural events ahead.
Central Dalmatian Coast & Islands (Split, Hvar, Brač, Vis)
August keeps the peak summer intensity: heat, strong sun, and bustling beaches from Makarska up to Hvar and Brač. Short, intense thunderstorms sometimes break the heat in late afternoons, but typically the weather favors swimming and sailing. Travelers wary of crowds should book well ahead or choose quieter islands like Vis; expect crowded ferries and higher prices for local services.
Southern Dalmatia (Dubrovnik, Korčula, Pelješac, Mljet)
August maintains high summer intensity with hot days, warm sea temperatures, and bustling harbors where yachts and day-trippers converge. Occasional short thunderstorms offer brief respite but generally the weather favors swimming, sailing, and late-night dining. Travelers should reserve dining and transport in advance, use sunscreen, and consider early-morning walks on the city walls to avoid midday heat and crowds.
Dinaric Alps, Gorski Kotar & Lika (Mountains and Karst Interior)
August keeps summer warmth with comfortable conditions for high-altitude hikes and cooler nights; vegetation is dense and mountain rivers offer relief from the heat. Occasional late afternoon storms can still roll through, bringing short, intense downpours. For travelers this is prime trekking season; reserve accommodation in mountain huts and bring a lightweight sleeping layer for cooler nights at altitude.
Continental Croatia (Zagreb, Slavonia, Northern Plains)
August remains hot and can be humid across the plains; thunderstorms build in the afternoons and can be intense but brief. Harvest activity begins in late month in agricultural areas, and August evening markets are vibrant. For travelers, plan flexible itineraries around weather and carry light, breathable clothing plus a waterproof layer for sudden storms.