Click on a day for an hourly weather forecast
The weather in Athens in September is hot. The average temperatures are between 22°C and 28°C.
You can expect a few rainy days in Athens during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Athens in September 2025.
If you’re planning to visit Athens in the near future, we highly recommend that you review the 14 day weather forecast for Athens before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 12° / 7° | 4 | 25 | 2 | 53 mm | Bad | Athens in January |
| February | 14° / 8° | 4 | 23 | 1 | 57 mm | Good | Athens in February |
| March | 16° / 10° | 4 | 27 | 0 | 54 mm | Good | Athens in March |
| April | 19° / 13° | 3 | 27 | 0 | 46 mm | Good | Athens in April |
| May | 24° / 17° | 3 | 28 | 0 | 38 mm | Perfect | Athens in May |
| June | 29° / 22° | 2 | 28 | 0 | 36 mm | Good | Athens in June |
| July | 32° / 25° | 0 | 31 | 0 | 10 mm | Good | Athens in July |
| August | 31° / 25° | 0 | 31 | 0 | 7 mm | Good | Athens in August |
| September | 28° / 22° | 2 | 28 | 0 | 43 mm | Perfect | Athens in September |
| October | 22° / 17° | 3 | 28 | 0 | 61 mm | Good | Athens in October |
| November | 18° / 14° | 2 | 28 | 0 | 56 mm | Good | Athens in November |
| December | 14° / 10° | 4 | 27 | 0 | 67 mm | Good | Athens in December |