Mostar weather by month

The best time to visit Mostar is April, May and September — 88/100 in May, 25°C and 16 rainy days. The best season is spring, March to May (81/100 on average).

The worst month is December at 56/100 — cool, soaked, clean air. See December →

Updated September 2026 · climate normals from ERA5 reanalysis

Planning the wider trip? Best time to visit Bosnia and Herzegovina →

Mostar🇧🇦 Bosnia and Herzegovina · Balkans · City88
  1. 57Jan
  2. 64Feb
  3. 70Mar
  4. 84Apr
  5. 88May
  6. 83Jun
  7. 77Jul
  8. 74Aug
  9. 85Sep
  10. 81Oct
  11. 61Nov
  12. 56Dec

Best season: March to May (81/100 on average) · worst December (56/100)

Days
25°C
Nights
12°C
Wet days
16
Sun
11.5 h
Humidity
74%
Daylight
15 h
Mostar, Bosnia and Herzegovina
Photo: Muhammed Fatih Beki · Pexels

Mostar, month by month

Comfort score out of 100 for the kind of trip Mostar is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.

MonthScoreTierHighRainSunCrowdsOn
Jan57D10°C12 d6 hQuiet2
Feb64C14°C10 d7 hShoulder2
Mar70B17°C12 d9 hShoulder2
Apr84A21°C12 d11 hBusy1
May88A25°C16 d12 hBusy1
Jun83A31°C10 d13 hBusy1
Jul77B34°C6 d13 hPeak3
Aug74B35°C7 d12 hPeak3
Sep85A28°C10 d10 hBusy1
Oct81A23°C9 d9 hBusy1
Nov61C16°C13 d6 hQuiet2
Dec56D12°C12 d5 hQuiet2

What's on in Mostar through the year

Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.

April
  • Coach day-trip season15 Apr – 15 OctSeason
July
  • Old Bridge diving competition20 Jul – 2 Aug (usually)Festival
  • Neretva valley heat1 Jul – 31 AugHazard
November
  • Bura down the valley1 Nov – 31 Mar (usually)Season
  • Winter quiet15 Nov – 15 MarSeason

Everything on in Mostar through the year →

Crowds in Mostar in May

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.

BusyCoach day-trip season, school holidays in 4 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Good to know before you go to Mostar

Real experiences from travellers' own write-ups, quoted with a link to the original.

Visas & entry

A guide to watching (or attempting) the Stari Most bridge jump in Mostar notes the stones on the bridge itself are polished smooth by centuries of foot traffic and genuinely slippery, so footing matters even just for spectating. Their timing advice: arrive before 9am or after 6pm to see the old town without the day-tripper crush, but come back late morning or early afternoon specifically if you want to catch the local divers' club in action, since that's when jumps are most likely.
Wander BiH · Read the original ↗

Traveller notes on Mostar

What people who have been say about the place — the year-round notes first, then month by month.

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.
Tripadvisor community · June · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · December · 1 month ago · Read more on Tripadvisor ↗

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