Climate averages 1991–2020
Split 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 Split: daytime highs average 29.2°C and nights cool to about 20.5°C. By daytime temperature it is the warmest month of the year.
Expect about 40 mm of rain on roughly 5 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 Mostar (112 km away). In August its highs average 30.2°C, 1.0°C warmer than Split, with 53 mm of rain.
Among the 4 cities listed in Croatia, Split ranks 1st of 4 for the warmest August highs and 1st of 4 for the driest August (rainfall, lowest first). The mean August high of those 4 cities is 28.1°C; Split is 1.0°C warmer than that mean.
From August to September, average highs fall by 5.0°C to 24.2°C, and monthly rainfall rises from 40 mm to 103 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
Split climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.0°C3.8°C | 3.8°C | 121 | 11.2 | 9.39 h |
| February | 10.9°C3.7°C | 3.7°C | 107 | 9.8 | 10.510 h |
| March | 13.8°C6.2°C | 6.2°C | 102 | 9.7 | 11.912 h |
| April | 17.2°C9.5°C | 9.5°C | 99 | 11.0 | 13.413 h |
| May | 21.6°C13.8°C | 13.8°C | 71 | 9.2 | 14.715 h |
| June | 25.9°C17.8°C | 17.8°C | 42 | 6.7 | 15.415 h |
| July | 28.8°C20.2°C | 20.2°C | 25 | 4.6 | 15.115 h |
| August, selected | 29.2°C20.5°C | 20.5°C | 40 | 4.5 | 14.014 h |
| September | 24.2°C16.6°C | 16.6°C | 103 | 7.7 | 12.613 h |
| October | 19.8°C12.9°C | 12.9°C | 137 | 11.1 | 11.111 h |
| November | 15.1°C9.1°C | 9.1°C | 222 | 13.9 | 9.710 h |
| December | 11.1°C5.1°C | 5.1°C | 173 | 12.6 | 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
- Mostar in AugustBosnia and Herzegovina · 112 kmHigh 30.2°C · Low 17.9°C · 53 mm rain
- Zenica in AugustBosnia and Herzegovina · 140 kmHigh 27.0°C · Low 16.8°C · 80 mm rain
- Bihać in AugustBosnia and Herzegovina · 152 kmHigh 27.2°C · Low 16.8°C · 85 mm rain
- Banja Luka in AugustBosnia and Herzegovina · 154 kmHigh 27.5°C · Low 16.3°C · 72 mm rain
- Ilidža in AugustBosnia and Herzegovina · 154 kmHigh 26.2°C · Low 16.3°C · 69 mm rain
- Sarajevo in AugustBosnia and Herzegovina · 159 kmHigh 26.1°C · Low 15.8°C · 69 mm rain
- Tuzla in AugustBosnia and Herzegovina · 212 kmHigh 27.0°C · Low 16.5°C · 80 mm rain
- Pescara in AugustItaly · 216 kmHigh 28.7°C · Low 20.2°C · 39 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 Split) is explained once on the Split year overview and on the Sources, method and limits page.