Mostar weather in July
July in Mostar: sweltering, a little rain, with clean air — fine if you can take 36°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#6 of 12 months in Mostar · #780 of 1413 destinations to visit in July · comfort 77/100 (tier B)
- Days
- 34°C
- Nights
- 19°C
- Wet days
- 6
- Sun
- 13.4 h
- Humidity
- 59%
- Daylight
- 15 h

Traveller notes on Mostar in July
Notes from nearby Makarska (64 km away)
Mostar doesn't have its own notes for July yet — these are about Makarska, close enough to share the season.
Forum posters call July genuinely hot, regularly above 30C, with the back half of the month singled out as the point where any hiking should shift to early morning or evening to avoid the worst heat. Swimming, by contrast, gets called glorious this time of year. July counts as peak season, though posters note the first half is somewhat more manageable than the crush of full August - one repeat visitor specifically contrasted a pleasant June trip against a July return that felt noticeably hotter and busier. For anyone finding the heat oppressive, posters suggest shifting to shaded activities like nearby caves and forest walks during the hottest midday hours.
Other months in Mostar
Forum posters describe Mostar's southern Herzegovina location as giving it a noticeably milder winter climate than northern Bosnia, with snow uncommon here - wind and rain are more likely worst-case scenarios for a December visit. Posters generally describe Bosnian winters as trending milder in recent years, though genuine surprises remain possible. Posters consistently note that the road into Mostar is well maintained and kept clear of snow even during winter weather elsewhere in the country, with rental cars typically supplied with snow tires as a precaution regardless. Posters generally rate December as a comparatively mild, manageable time to visit Mostar relative to the rest of Bosnia and Herzegovina, wind and rain the more likely weather challenge than snow or ice.
Mostar is the hottest place in Bosnia and Herzegovina — too far inland for the sea to cool it, and on a Mediterranean rather than a mountain climate — so June here reads very differently from June in Sarajevo. Days average near 28°C and the forum reports spells reaching 35°C; nights fall to about 16. The other June problem is size: the old town is small and gets completely crowded, with day-trippers off the Croatian coast and pilgrims bound for Medjugorje on top of everyone else. Regulars' fix is to stay overnight rather than day-trip, which also opens up Blagaj's dervish house and river source, and the castle town of Počitelj.
Add your own note from Mostar's card on the map.
Mostar climate normals — July
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Mostar in July
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsCoach day-trip season, Old Bridge diving competition, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Mostar's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherMostar's best weather comes in April, May and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Mostar in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Coach day-trip season
15 Apr – 15 OctDay-tripper crushCrowdedBuses from Dubrovnik, Split and Makarska arrive between ten and four and the bridge and the Kujundziluk lane are solid for those hours. Stay the night and you get the old town at breakfast and after six.
- Hazard
Neretva valley heat
1 Jul – 31 AugExtreme heatThis is the hottest corner of Bosnia, a Mediterranean pocket walled in by bare karst that radiates all afternoon. The river gorge and the shaded cafes under the bridge are where the town waits it out. Source ↗
- Festival
Old Bridge diving competition
20 Jul – 2 Aug · usuallySporting eventCrowdedThe formal competition off the bridge has been held every summer since 1968, at the end of July, and divers come from the Adriatic coast for it. Both banks fill early; the west side gives you the jump in profile. Source ↗
Nearby, and something's on
Within 300 km of Mostar — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Mostar?
Mostar in July — FAQ
- Is July a good time to visit Mostar?
- July in Mostar: sweltering, a little rain, with clean air — fine if you can take 36°C afternoons. It ranks #6 of 12 months for Mostar on SeasonMap's comfort score (77/100).
- What is the weather like in Mostar in July?
- In July, Mostar averages a daily high of 34.4°C and a low of 18.6°C, with about 38.9 mm of rain over roughly 5.8 rainy days.
- What is the air quality in Mostar in July?
- Mostar has a mean US Air Quality Index of about 45 in July.
Within 300 km: Korčula's Moreska sword dance on 1 Jun – 30 Sep, and Dubrovnik's Island ferry season around 15 Apr – 20 Oct.