In Medulin and Nin, the population increases five and a half times in August due to the arrival of a large number of tourists, which is the largest increase among all tourist centers in Croatia. Expressed in percentages, the population of Medulin, which as a municipality counts about 6,000 people, increases by 469%, while Nin, which usually has less than 3,000 inhabitants, grows by 447% in August.
In comparison, an 11% increase in population is expected in Split in August, which is relatively small due to the large number of residents in the city of Split, calculated by HGK.
In July, the increase remains significant, although slightly less than in August – by 431%, or over 5 times in Nin and almost identically in Medulin, by 421%.
The calculation also shows that the expected range of population increase in August 2018, based on tourist arrivals and overnight stays in the counties of coastal Croatia, ranges from 40% in Split-Dalmatia to 129% in Istria. A slightly smaller growth is expected in July, from 39% in Split-Dalmatia to 119% in Istria.
Calendar-wise, the highest number of overnight stays in commercial accommodation facilities during the year occurs in July and August: about 29% in July and about 33% in August. In 2017, as many as 49.2 million overnight stays, or about 95% of the total number of overnight stays in those two months, were recorded in six coastal counties, in this order: Istria County 15.2 million total overnight stays, Split-Dalmatia 10.6 million, Primorje-Gorski Kotar 9.3 million, Zadar County 6.5 million, Dubrovnik-Neretva 3.8 million, and Šibenik-Knin 3.8 million.

