September weather forecastSitges, Spain

September

Weather in September

September, the first month of the autumn in Sitges, is still a warm month, with temperature in the range of an average low of 19.6°C (67.3°F) and an average high of 24.1°C (75.4°F).

Temperature

September observes an average high-temperature of a still warm 24.1°C (75.4°F), marking an insignificant difference from August's 27°C (80.6°F). In Sitges, nights during September observe an average temperature decrease to a comfortable 19.6°C (67.3°F).

Humidity

In September, the average relative humidity is 72%.

Rainfall

In September, the rain falls for 14.4 days. Throughout September, 49mm (1.93") of precipitation is accumulated. In Sitges, Spain, during the entire year, the rain falls for 123.2 days and collects up to 427mm (16.81") of precipitation.

Snowfall

In Sitges, snow does not fall in January, April through December.

Sea temperature

In Sitges, in September, the average water temperature is 24.1°C (75.4°F).
Note: Think about diving into 24.1°C (75.4°F) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

In September, the average length of the day in Sitges is 12h and 28min.
On the first day of September in Sitges, sunrise is at 07:19 and sunset at 20:25. On the last day of the month, sunrise is at 07:48 and sunset at 19:36 CEST.

Sunshine

In September, the average sunshine in Sitges is 9.2h.

UV index

In September, the average daily maximum UV index in Sitges is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.

Updated: Jan 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During September, Sitges experiences an average high-temperature of 24.1°C (75.4°F) and a low-temperature of 19.6°C (67.3°F). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 29°C (84.2°F).

In September, the average relative humidity is 72%.

In Sitges, in September, it is raining for 14.4 days, with typically 49mm (1.93") of accumulated precipitation.

January, April through December are months without snowfall.

In Sitges, the average seawater temperature in September is 24.1°C (75.4°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 24.1°C (75.4°F).

The average day length in September is 12h and 28min.

On the first day of September, sunrise is at 07:19 and sunset at 20:25. On the last day of the month, sunrise is at 07:48 and sunset at 19:36 CEST.

In Sitges, Spain, the average sunshine duration in September is 9.2h.

In September, the average daily maximum UV index in Sitges is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

27°C

24.1°C

20.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.2km/h

11.1km/h

12.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

11.6

15.2

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Sitges, Spain

Average high temperature in September: 24.1°C

The warmest month (with the highest average high temperature) is August (27°C).
The month with the lowest average high temperature is January (12.2°C).

Average low temperature in September: 19.6°C

The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (7.4°C).

Average pressure in September
Sitges, Spain

Average pressure in September: 1017.1mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).

Average wind speed in September
Sitges, Spain

Average wind speed in September: 10.4km/h

The windiest month (with the highest average wind speed) is January (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

Average humidity in September
Sitges, Spain

Average humidity in September: 72%

The month with the highest relative humidity is April (73%).
The months with the lowest relative humidity are January, February, June and November (69%).

Average rainfall in September
Sitges, Spain

Average rainfall in September: 49mm

The wettest month (with the highest rainfall) is October (63mm).
The driest month (with the least rainfall) is February (17mm).

Average rainfall days in September
Sitges, Spain

Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is September (14.4 days).
The month with the least rainy days is December (6.5 days).

Average snowfall in September
Sitges, Spain

Average snowfall in September: 0mm

The month with the highest snowfall is February (3mm).
The months with the least snowfall are January, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in September
Sitges, Spain

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature in September
Sitges, Spain

Average sea temperature in September: 24.1°C

The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (13.1°C).

Average daylight in September /
Average sunshine in September
Sitges, Spain

Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

Average sunshine in September: 9h and 12min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in September
Sitges, Spain

Average sunshine days in September: 11.6 days

The month with the most sunshine days is December (22.7 days).
The month with the least sunshine days is September (11.6 days).

Average UV index in September
Sitges, Spain

Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and November (UV index 3).

Average cloud cover in September
Sitges, Spain

Average cloud cover in September: 22

The month with the most cloud cover is April (Cloud cover 30).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in September
Sitges, Spain

Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).