Weather in Split in August

A good month. August is a solid month to be in Split. Highs average 30.1 °C, lows 23 °C, and rain falls on 6 days — nothing in the month is working against you.

August ranks 6 of 12 in Split: 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 30.1 °C days and 23 °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: 16 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest August day reached 36.8 °C and the coldest night fell to 14.6 °C, and the wettest single day dropped 45 mm — roughly 110% of the month's rain in one day.

This is the volatile part. August rainfall has ranged from 1 mm to 157 mm across the twenty years measured — a 156 mm spread around an average of 41 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 8.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 58%.

How August sits in the year

Temperatures hold steady either side: 29.9 °C in July, 30.1 here, 25.3 in September. Nothing about the timing within the month matters much.

Daylight in August

14 hours of daylight, losing 1.3 hours across the month. That is between Split's extremes of 15.4 and 9 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 23.8 °C between the year's warmest afternoons and coldest nights.

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 Split versus nearby

If Split is one option among several, the nearby comparison is worth making. Dubrovnik is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Slavonski Brod is the weaker option in August — within a degree on temperature, 3 days more rain.

So: August works, with June the better month by 9 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Split

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