Climate averages 1991–2020
Mostar weather
in August.
A hot, moderately wet month: the warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Mostar: daytime highs average 30.2°C and nights cool to about 17.9°C. By daytime temperature it is the warmest month of the year.
Expect about 53 mm of rain on roughly 7 days, which makes August a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average August day.
The nearest other city in this atlas is Ilidža (68 km away). In August its highs average 26.2°C, 4.0°C cooler than Mostar, with 69 mm of rain.
Among the 7 cities listed in Bosnia and Herzegovina, Mostar ranks 1st of 7 for the warmest August highs and 1st of 7 for the driest August (rainfall, lowest first). The mean August high of those 7 cities is 27.3°C; Mostar is 2.9°C warmer than that mean.
From August to September, average highs fall by 6.0°C to 24.2°C, and monthly rainfall rises from 53 mm to 135 mm.
The annual picture
August 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 | 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, selected | 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
August in nearby cities
- Ilidža in AugustBosnia and Herzegovina · 68 kmHigh 26.2°C · Low 16.3°C · 69 mm rain
- Sarajevo in AugustBosnia and Herzegovina · 71 kmHigh 26.1°C · Low 15.8°C · 69 mm rain
- Zenica in AugustBosnia and Herzegovina · 96 kmHigh 27.0°C · Low 16.8°C · 80 mm rain
- Split in AugustCroatia · 112 kmHigh 29.2°C · Low 20.5°C · 40 mm rain
- Tuzla in AugustBosnia and Herzegovina · 150 kmHigh 27.0°C · Low 16.5°C · 80 mm rain
- Podgorica in AugustMontenegro · 155 kmHigh 30.2°C · Low 20.3°C · 41 mm rain
- Banja Luka in AugustBosnia and Herzegovina · 167 kmHigh 27.5°C · Low 16.3°C · 72 mm rain
- Shkodër in AugustAlbania · 199 kmHigh 29.8°C · Low 21.9°C · 48 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.