Click on a day for an hourly weather forecast
The weather in Skiathos in September is hot. The average temperatures are between 22°C and 24°C.
You can expect about 3 to 8 days of rain in Skiathos 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 Skiathos in September 2025.
If you’re planning to visit Skiathos in the near future, we highly recommend that you review the 14 day weather forecast for Skiathos before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 12° / 9° | 7 | 24 | 0 | 113 mm | Bad | Skiathos in January |
| February | 13° / 10° | 7 | 22 | 0 | 122 mm | Bad | Skiathos in February |
| March | 14° / 11° | 6 | 25 | 0 | 103 mm | Good | Skiathos in March |
| April | 16° / 13° | 4 | 26 | 0 | 70 mm | Good | Skiathos in April |
| May | 20° / 18° | 3 | 28 | 0 | 71 mm | Good | Skiathos in May |
| June | 24° / 22° | 3 | 27 | 0 | 65 mm | Perfect | Skiathos in June |
| July | 27° / 24° | 2 | 29 | 0 | 51 mm | Perfect | Skiathos in July |
| August | 27° / 25° | 2 | 29 | 0 | 40 mm | Perfect | Skiathos in August |
| September | 24° / 22° | 4 | 26 | 0 | 106 mm | Perfect | Skiathos in September |
| October | 20° / 18° | 5 | 26 | 0 | 113 mm | Good | Skiathos in October |
| November | 17° / 15° | 4 | 26 | 0 | 84 mm | Good | Skiathos in November |
| December | 13° / 11° | 6 | 25 | 0 | 102 mm | Ok | Skiathos in December |