Click on a day for an hourly weather forecast
The temperatures in Sisak in August are comfortable with low of 15°C and and high up to 29°C.
You can expect about 3 to 8 days of rain in Sisak during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Sisak in August 2026.
If you’re planning to visit Sisak in the near future, we highly recommend that you review the 14 day weather forecast for Sisak before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -2° | 6 | 15 | 10 | 88 mm | Awful | Sisak in January |
| February | 7° / 0° | 5 | 15 | 8 | 104 mm | Bad | Sisak in February |
| March | 12° / 3° | 6 | 22 | 3 | 81 mm | Bad | Sisak in March |
| April | 18° / 7° | 6 | 24 | 1 | 87 mm | Good | Sisak in April |
| May | 21° / 10° | 10 | 21 | 0 | 162 mm | Ok | Sisak in May |
| June | 26° / 14° | 7 | 23 | 0 | 129 mm | Good | Sisak in June |
| July | 29° / 15° | 5 | 26 | 0 | 107 mm | Good | Sisak in July |
| August | 29° / 15° | 4 | 27 | 0 | 82 mm | Good | Sisak in August |
| September | 24° / 12° | 6 | 24 | 0 | 122 mm | Perfect | Sisak in September |
| October | 17° / 8° | 6 | 25 | 0 | 110 mm | Good | Sisak in October |
| November | 12° / 5° | 6 | 22 | 1 | 104 mm | Ok | Sisak in November |
| December | 6° / 1° | 5 | 21 | 5 | 84 mm | Awful | Sisak in December |