Weather in Zagreb in August 2025
- August is usually the hottest month of the year in Zagreb;
Average weather
Average temperature in Zagreb in August
Going from a maximum of +36°C during the day to a minimum of +12°C during the night, the temperature in August averages around +28°C.
The average maximum temperature goes down 25% by the end of the month, compared with the beginning of the month, from +29°C to +23°C.
Is Zagreb warm or cold in August?
Zagreb is typically warm in August.
Maximum temperatures go up compared to the previous month from +27°C to +27°C. The minimum temperature also goes up from +16°C to +16°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is the hottest month in Zagreb, here is the comparison with other months:
Climate in Zagreb in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +27°C | +27°C | +22°C | ||||
| Min. temperature | ||||||
| +8°C | +6°C | +1°C | ||||
| Max. temperature | ||||||
| +39°C | +39°C | +33°C | ||||
| Rainfall | ||||||
| 79 mm | 78 mm | 89 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 69% | 71% | 77% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 12 | 13 | 11 | ||||
| Cloudy days | ||||||
| 3 | 3 | 5 | ||||
| Rainy days | ||||||
| 9 | 9 | 11 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. The temperature levels stay the same in the area of +27°C for average maximum temperature during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 79 mm to 78 mm. Humidity rises from 69% to 71%. The average wind speed doesn’t change much during August, staying around 1 m/s. The good news is there are likely to be more sunny days in August, from 12 to 13.
Next month (September) brings a further decline in the weather.
Wind
The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Zagreb is gradually decreasing during August, going from 2 m/s to 1 m/s over the course of the month.
Rain
How was the weather last August in Zagreb?
Climate Change over Years
The climate in Zagreb in August has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+14°C) and the highest in 2022 (+18°C). The driest year was 2011 with only 471 mm of rainfall, and the wettest year was 2019 with 1707 mm.
FAQ
Is August a good time to visit Zagreb?
Can you sunbathe in Zagreb in August?
Is Zagreb rainy in August?
Is it sunny in Zagreb in August?
Other cities in Croatia
Monthly weather in Zagreb
Source of the data
For this page, we’ve looked at the typical weather in Zagreb, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.