Click on a day for an hourly weather forecast
The weather in Algarve in September is hot. The average temperatures are between 20°C and 25°C.
You can expect a few rainy days in Algarve 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 Algarve in September 2025.
If you’re planning to visit Algarve in the near future, we highly recommend that you review the 14 day weather forecast for Algarve before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 15° / 11° | 3 | 28 | 0 | 58 mm | Good | Algarve in January |
| February | 16° / 11° | 3 | 25 | 0 | 60 mm | Good | Algarve in February |
| March | 17° / 12° | 4 | 27 | 0 | 73 mm | Good | Algarve in March |
| April | 18° / 13° | 4 | 26 | 0 | 64 mm | Good | Algarve in April |
| May | 22° / 16° | 2 | 29 | 0 | 36 mm | Good | Algarve in May |
| June | 24° / 18° | 0 | 30 | 0 | 7 mm | Perfect | Algarve in June |
| July | 26° / 19° | 0 | 31 | 0 | 1 mm | Perfect | Algarve in July |
| August | 27° / 20° | 0 | 31 | 0 | 4 mm | Perfect | Algarve in August |
| September | 25° / 20° | 1 | 29 | 0 | 19 mm | Perfect | Algarve in September |
| October | 23° / 18° | 3 | 28 | 0 | 74 mm | Perfect | Algarve in October |
| November | 18° / 14° | 4 | 26 | 0 | 96 mm | Good | Algarve in November |
| December | 16° / 13° | 4 | 27 | 0 | 94 mm | Good | Algarve in December |