Weather in Dubrovnik in August

Prime time. August is about as good as Dubrovnik gets. Highs average 28.7 °C, lows 24.8 °C, and rain falls on 6 days — nothing in the month is working against you.

August ranks 4 of 12 in Dubrovnik: past the worst of the year but short of June, which is the month to book if the dates are open.

Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 28.7 °C days and 24.8 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 9 days top 30 °C — hot spells arrive, but they break; the day barely swings — 3.9 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 34.8 °C and the coldest night fell to 17.1 °C, and the wettest single day dropped 32 mm — roughly 84% of the month's rain in one day.

This is the volatile part. August rainfall has ranged from 3 mm to 128 mm across the twenty years measured — a 125 mm spread around an average of 38 mm. The average is real but almost no individual August looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 10.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 62%.

How August sits in the year

Temperatures hold steady either side: 28.3 °C in July, 28.7 here, 24.7 in September. Nothing about the timing within the month matters much.

Daylight in August

14 hours of daylight, losing 1.2 hours across the month. That is between Dubrovnik's extremes of 15.3 and 9.1 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 26 °C in August — warm enough to stay in as long as you like. This is the warmest the water gets all year.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Dubrovnik versus nearby

If Dubrovnik is one option among several, the nearby comparison is worth making. Split is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Bari is the weaker option in August — 3.6 °C warmer, 1 day less rain.

So: August is effectively as good as it gets here — 5 points behind June, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Dubrovnik

See all twelve months in Dubrovnik, or where else to go in August.