Click on a day for an hourly weather forecast
The temperatures in Celje in August are comfortable with low of 12°C and and high up to 28°C.
You can expect about 3 to 8 days of rain in Celje 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 Celje in August 2025.
If you’re planning to visit Celje in the near future, we highly recommend that you review the 14 day weather forecast for Celje before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -3° | 6 | 14 | 11 | 95 mm | Awful | Celje in January |
| February | 6° / -3° | 7 | 13 | 9 | 132 mm | Awful | Celje in February |
| March | 11° / 1° | 6 | 22 | 4 | 96 mm | Bad | Celje in March |
| April | 16° / 4° | 6 | 23 | 1 | 106 mm | Good | Celje in April |
| May | 20° / 7° | 10 | 21 | 0 | 190 mm | Ok | Celje in May |
| June | 25° / 10° | 9 | 21 | 0 | 142 mm | Good | Celje in June |
| July | 27° / 12° | 8 | 23 | 0 | 128 mm | Good | Celje in July |
| August | 28° / 12° | 5 | 26 | 0 | 116 mm | Perfect | Celje in August |
| September | 22° / 9° | 6 | 24 | 0 | 151 mm | Good | Celje in September |
| October | 16° / 5° | 5 | 26 | 0 | 118 mm | Good | Celje in October |
| November | 11° / 3° | 8 | 20 | 2 | 146 mm | Awful | Celje in November |
| December | 6° / -2° | 6 | 19 | 6 | 104 mm | Awful | Celje in December |