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The weather in Rethimni 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 Rethimni 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 Rethimni in September 2025.
If you’re planning to visit Rethimni in the near future, we highly recommend that you review the 14 day weather forecast for Rethimni before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 12° | 3 | 28 | 0 | 77 mm | Good | Rethimni in January |
| February | 15° / 12° | 3 | 25 | 0 | 67 mm | Good | Rethimni in February |
| March | 16° / 13° | 2 | 29 | 0 | 38 mm | Good | Rethimni in March |
| April | 18° / 15° | 1 | 29 | 0 | 23 mm | Good | Rethimni in April |
| May | 22° / 18° | 1 | 30 | 0 | 13 mm | Good | Rethimni in May |
| June | 25° / 22° | 0 | 30 | 0 | 5 mm | Perfect | Rethimni in June |
| July | 27° / 24° | 0 | 31 | 0 | 1 mm | Perfect | Rethimni in July |
| August | 28° / 25° | 0 | 31 | 0 | 2 mm | Perfect | Rethimni in August |
| September | 26° / 23° | 1 | 29 | 0 | 18 mm | Perfect | Rethimni in September |
| October | 23° / 20° | 2 | 29 | 0 | 44 mm | Perfect | Rethimni in October |
| November | 20° / 17° | 2 | 28 | 0 | 50 mm | Good | Rethimni in November |
| December | 16° / 14° | 4 | 27 | 0 | 74 mm | Good | Rethimni in December |