Climate averages 1991–2020
Banja Luka weather
in August.
A warm, moderately wet month: the warmest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Banja Luka: daytime highs average 27.5°C and nights cool to about 16.3°C. By daytime temperature it is the warmest month of the year.
Expect about 72 mm of rain on roughly 9 days, which makes August a moderately wet month (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 04 min on an average August day.
The nearest other city in this atlas is Zenica (85 km away). In August its highs average 27.0°C, 0.5°C cooler than Banja Luka, with 80 mm of rain.
Among the 7 cities listed in Bosnia and Herzegovina, Banja Luka ranks 2nd of 7 for the warmest August highs and 4th of 7 for the driest August (rainfall, lowest first). The mean August high of those 7 cities is 27.3°C; Banja Luka is 0.2°C warmer than that mean.
From August to September, average highs fall by 5.3°C to 22.2°C, and monthly rainfall rises from 72 mm to 95 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
Banja Luka climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.3°C-2.8°C | -2.8°C | 70 | 10.4 | 9.29 h |
| February | 7.4°C-2.1°C | -2.1°C | 70 | 10.4 | 10.410 h |
| March | 12.3°C1.3°C | 1.3°C | 79 | 11.5 | 11.912 h |
| April | 17.1°C5.5°C | 5.5°C | 92 | 12.7 | 13.513 h |
| May | 21.3°C10.1°C | 10.1°C | 112 | 13.5 | 14.815 h |
| June | 25.0°C14.2°C | 14.2°C | 97 | 11.9 | 15.516 h |
| July | 27.4°C16.3°C | 16.3°C | 87 | 10.4 | 15.215 h |
| August, selected | 27.5°C16.3°C | 16.3°C | 72 | 8.8 | 14.114 h |
| September | 22.2°C12.0°C | 12.0°C | 95 | 10.9 | 12.613 h |
| October | 17.4°C7.7°C | 7.7°C | 72 | 9.2 | 11.011 h |
| November | 11.5°C3.2°C | 3.2°C | 85 | 10.2 | 9.610 h |
| December | 6.0°C-1.3°C | -1.3°C | 82 | 11.5 | 8.99 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
- Zenica in AugustBosnia and Herzegovina · 85 kmHigh 27.0°C · Low 16.8°C · 80 mm rain
- Bihać in AugustBosnia and Herzegovina · 105 kmHigh 27.2°C · Low 16.8°C · 85 mm rain
- Tuzla in AugustBosnia and Herzegovina · 119 kmHigh 27.0°C · Low 16.5°C · 80 mm rain
- Ilidža in AugustBosnia and Herzegovina · 137 kmHigh 26.2°C · Low 16.3°C · 69 mm rain
- Sarajevo in AugustBosnia and Herzegovina · 138 kmHigh 26.1°C · Low 15.8°C · 69 mm rain
- Osijek in AugustCroatia · 145 kmHigh 28.1°C · Low 18.0°C · 56 mm rain
- Zagreb in AugustCroatia · 150 kmHigh 27.4°C · Low 17.3°C · 81 mm rain
- Split in AugustCroatia · 154 kmHigh 29.2°C · Low 20.5°C · 40 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 Banja Luka) is explained once on the Banja Luka year overview and on the Sources, method and limits page.