Click on a day for an hourly weather forecast
The weather in Mahon in September is very hot. The average temperatures are between 23°C and 25°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Mahon 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 Mahon in September 2026.
If you’re planning to visit Mahon in the near future, we highly recommend that you review the 14 day weather forecast for Mahon before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 12° | 5 | 27 | 0 | 93 mm | Good | Mahon in January |
| February | 14° / 11° | 4 | 24 | 0 | 77 mm | Good | Mahon in February |
| March | 14° / 12° | 3 | 28 | 0 | 59 mm | Good | Mahon in March |
| April | 16° / 14° | 3 | 27 | 0 | 53 mm | Good | Mahon in April |
| May | 19° / 17° | 2 | 29 | 0 | 44 mm | Good | Mahon in May |
| June | 23° / 21° | 1 | 29 | 0 | 21 mm | Perfect | Mahon in June |
| July | 26° / 24° | 1 | 30 | 0 | 8 mm | Perfect | Mahon in July |
| August | 26° / 24° | 1 | 30 | 0 | 18 mm | Perfect | Mahon in August |
| September | 25° / 23° | 4 | 26 | 0 | 95 mm | Perfect | Mahon in September |
| October | 22° / 20° | 4 | 27 | 0 | 100 mm | Good | Mahon in October |
| November | 18° / 16° | 6 | 24 | 0 | 144 mm | Good | Mahon in November |
| December | 15° / 14° | 4 | 27 | 0 | 74 mm | Good | Mahon in December |