Sitges weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: June – August
What is the weather like in Sitges in September?
In September, Sitges is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. The sea averages 24.5 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 76 mm in total. All in all, September is an excellent month for a holiday in Sitges.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 93 | 81 | 51 |
| Day | 28° | 25° | 21° |
| Night | 21° | 18° | 15° |
| Sea | 26° | 25° | 22° |
| Sun | 8 h | 7 h | 5 h |
| Rain days | 7 | 11 | 9 |
More details for September
- Daylight
- 12 h 32 min07:32 – 20:04
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 11 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 50 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Madrid
How the score comes together
- Temperatureweight 35 %95 %
- Seaweight 25 %100 %
- Sunshineweight 20 %63 %
- Few rainy daysweight 20 %51 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Sitges in September: quick answers
Is Sitges hot in September?
Warm rather than hot: in September, daytime highs in Sitges average 25 °C and nights cool to about 18 °C.
Can you swim in Sitges in September?
Yes. In September the sea averages 24.5 °C – pleasant for swimming.
Does it rain much in Sitges in September?
Rain is frequent, with about 11 rainy days and 76 mm in total.
Sitges month by month
The whole year in SitgesAll destinations: SpainWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences