Click on a day for an hourly weather forecast
The temperatures in Slovakia in September are comfortable with low of 13°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Slovakia during the month of September. 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 Slovakia in September 2025.
If you’re planning to visit Slovakia in the near future, we highly recommend that you review the 14 day weather forecast for Slovakia before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -2° | 6 | 15 | 10 | 58 mm | Awful | Slovakia in January |
| February | 5° / -1° | 5 | 16 | 7 | 60 mm | Awful | Slovakia in February |
| March | 11° / 3° | 4 | 24 | 3 | 48 mm | Bad | Slovakia in March |
| April | 16° / 7° | 3 | 26 | 1 | 47 mm | Good | Slovakia in April |
| May | 20° / 10° | 7 | 24 | 0 | 101 mm | Ok | Slovakia in May |
| June | 25° / 14° | 6 | 24 | 0 | 100 mm | Perfect | Slovakia in June |
| July | 28° / 16° | 4 | 27 | 0 | 78 mm | Perfect | Slovakia in July |
| August | 28° / 17° | 4 | 27 | 0 | 56 mm | Perfect | Slovakia in August |
| September | 22° / 13° | 4 | 26 | 0 | 72 mm | Good | Slovakia in September |
| October | 16° / 8° | 5 | 26 | 0 | 65 mm | Good | Slovakia in October |
| November | 10° / 4° | 4 | 25 | 1 | 56 mm | Ok | Slovakia in November |
| December | 4° / 0° | 6 | 20 | 5 | 52 mm | Awful | Slovakia in December |