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The weather in Sitges in September is hot. The average temperatures are between 20°C and 24°C.
You can expect about 3 to 8 days of rain in Sitges 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 Sitges in September 2026.
If you’re planning to visit Sitges in the near future, we highly recommend that you review the 14 day weather forecast for Sitges before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 12° / 7° | 3 | 28 | 0 | 61 mm | Ok | Sitges in January |
| February | 13° / 8° | 3 | 25 | 0 | 44 mm | Ok | Sitges in February |
| March | 14° / 10° | 4 | 27 | 0 | 79 mm | Good | Sitges in March |
| April | 16° / 12° | 5 | 25 | 0 | 94 mm | Good | Sitges in April |
| May | 20° / 15° | 3 | 28 | 0 | 73 mm | Good | Sitges in May |
| June | 24° / 20° | 3 | 27 | 0 | 67 mm | Perfect | Sitges in June |
| July | 26° / 23° | 2 | 29 | 0 | 43 mm | Perfect | Sitges in July |
| August | 27° / 23° | 4 | 27 | 0 | 73 mm | Perfect | Sitges in August |
| September | 24° / 20° | 5 | 25 | 0 | 113 mm | Perfect | Sitges in September |
| October | 21° / 17° | 4 | 27 | 0 | 116 mm | Good | Sitges in October |
| November | 16° / 12° | 3 | 27 | 0 | 85 mm | Good | Sitges in November |
| December | 13° / 9° | 2 | 29 | 0 | 46 mm | Ok | Sitges in December |