Climate averages 1991–2020
Mostar weather
in May.
A warm, wet month: the 5th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Mostar: daytime highs average 22.1°C and nights cool to about 11.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 109 mm of rain on roughly 12 days, which makes May a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 40 min on an average May day.
The nearest other city in this atlas is Ilidža (68 km away). In May its highs average 19.4°C, 2.7°C cooler than Mostar, with 110 mm of rain.
Among the 7 cities listed in Bosnia and Herzegovina, Mostar ranks 1st of 7 for the warmest May highs and 1st of 7 for the driest May (rainfall, lowest first). The mean May high of those 7 cities is 20.6°C; Mostar is 1.4°C warmer than that mean.
From May to June, average highs rise by 4.4°C to 26.5°C, and monthly rainfall falls from 109 mm to 72 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Mostar climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.1°C-0.2°C | -0.2°C | 138 | 11.1 | 9.49 h |
| February | 9.3°C0.0°C | 0.0°C | 136 | 11.0 | 10.510 h |
| March | 13.1°C3.0°C | 3.0°C | 133 | 11.7 | 11.912 h |
| April | 17.4°C6.7°C | 6.7°C | 147 | 13.1 | 13.413 h |
| May, selected | 22.1°C11.1°C | 11.1°C | 109 | 12.4 | 14.715 h |
| June | 26.5°C15.1°C | 15.1°C | 72 | 9.7 | 15.315 h |
| July | 29.6°C17.5°C | 17.5°C | 45 | 6.8 | 15.115 h |
| August | 30.2°C17.9°C | 17.9°C | 53 | 6.6 | 14.014 h |
| September | 24.2°C13.8°C | 13.8°C | 135 | 9.1 | 12.513 h |
| October | 19.2°C9.6°C | 9.6°C | 180 | 10.8 | 11.111 h |
| November | 13.8°C5.5°C | 5.5°C | 222 | 13.2 | 9.710 h |
| December | 9.0°C1.0°C | 1.0°C | 191 | 12.5 | 9.09 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Ilidža in MayBosnia and Herzegovina · 68 kmHigh 19.4°C · Low 9.8°C · 110 mm rain
- Sarajevo in MayBosnia and Herzegovina · 71 kmHigh 19.5°C · Low 9.5°C · 110 mm rain
- Zenica in MayBosnia and Herzegovina · 96 kmHigh 20.6°C · Low 10.5°C · 120 mm rain
- Split in MayCroatia · 112 kmHigh 21.6°C · Low 13.8°C · 71 mm rain
- Tuzla in MayBosnia and Herzegovina · 150 kmHigh 21.1°C · Low 10.4°C · 116 mm rain
- Podgorica in MayMontenegro · 155 kmHigh 22.0°C · Low 13.5°C · 121 mm rain
- Banja Luka in MayBosnia and Herzegovina · 167 kmHigh 21.3°C · Low 10.1°C · 112 mm rain
- Shkodër in MayAlbania · 199 kmHigh 22.1°C · Low 15.0°C · 113 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Mostar) is explained once on the Mostar year overview and on the Sources, method and limits page.