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The weather in Rethymno in September is very hot. The average temperatures are between 23°C and 26°C, drinking water regularly is advisable.
You can expect a few rainy days in Rethymno 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 Rethymno in September 2025.
If you’re planning to visit Rethymno in the near future, we highly recommend that you review the 14 day weather forecast for Rethymno before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 12° | 3 | 28 | 0 | 77 mm | Good | Rethymno in January |
| February | 15° / 12° | 3 | 25 | 0 | 67 mm | Good | Rethymno in February |
| March | 16° / 13° | 2 | 29 | 0 | 38 mm | Good | Rethymno in March |
| April | 18° / 15° | 1 | 29 | 0 | 23 mm | Good | Rethymno in April |
| May | 22° / 18° | 1 | 30 | 0 | 13 mm | Good | Rethymno in May |
| June | 25° / 22° | 0 | 30 | 0 | 5 mm | Perfect | Rethymno in June |
| July | 27° / 24° | 0 | 31 | 0 | 1 mm | Perfect | Rethymno in July |
| August | 28° / 25° | 0 | 31 | 0 | 2 mm | Perfect | Rethymno in August |
| September | 26° / 23° | 1 | 29 | 0 | 18 mm | Perfect | Rethymno in September |
| October | 23° / 20° | 2 | 29 | 0 | 44 mm | Perfect | Rethymno in October |
| November | 20° / 17° | 2 | 28 | 0 | 50 mm | Good | Rethymno in November |
| December | 16° / 14° | 4 | 27 | 0 | 74 mm | Good | Rethymno in December |