September weather forecastCartaya, Spain

September

Weather in September

September, the first month of the autumn in Cartaya, is also a moderately hot month, with an average temperature fluctuating between 27.7°C (81.9°F) and 19.1°C (66.4°F).

Temperature

The onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 31.3°C (88.3°F) in August to a warm 27.7°C (81.9°F). Cartaya registers a consistent average low-temperature of 19.1°C (66.4°F) during September.

Heat index

The heat index in September is calculated to be 29°C (84.2°F). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in September in Cartaya is 60%.

Rainfall

In September, the rain falls for 3.9 days. Throughout September, 6mm (0.24") of precipitation is accumulated. Throughout the year, there are 74.4 rainfall days, and 251mm (9.88") of precipitation is accumulated.

Daylight

In September, the average length of the day in Cartaya is 12h and 25min.
On the first day of the month, sunrise is at 07:59 and sunset at 20:57. On the last day of September, sunrise is at 08:23 and sunset at 20:13 CEST.

Sunshine

The average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September in Cartaya, Spain, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

In Cartaya, 27.7°C (81.9°F) is the average high-temperature and 19.1°C (66.4°F) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 29°C (84.2°F).

The average relative humidity in September is 60%.

In Cartaya, during September, the rain falls for 3.9 days and regularly aggregates up to 6mm (0.24") of precipitation.

In September, the average day length in Cartaya, Spain, is 12h and 25min.

In September, on the first day of the month, sunrise is at 07:59 and sunset at 20:57. On the last day of the month, in Cartaya, sunrise is at 08:23 and sunset at 20:13 CEST.

In September, the average sunshine duration is 9.6h.

In September, the average daily maximum UV index in Cartaya is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cartaya, Spain

  • Average high temperature in September: 27.7°C

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (15.2°C).

  • Average low temperature in September: 19.1°C

The month with the highest average low temperature is August (20.8°C).
The coldest months (with the lowest average low temperature) are January and February (8.8°C).

Average pressure in September
Cartaya, Spain

  • Average pressure in September: 1016.1mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is August (1015mbar).

Average wind speed in September
Cartaya, Spain

  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is March (15km/h).
The calmest month (with the lowest average wind speed) is September (10.9km/h).

Average humidity in September
Cartaya, Spain

  • Average humidity in September: 60%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (52%).

Average rainfall in September
Cartaya, Spain

  • Average rainfall in September: 6mm

The wettest month (with the highest rainfall) is November (46mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in September
Cartaya, Spain

  • Average rainfall days in September: 3.9 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (1.2 days).

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

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 8h and 6min).

Average sunshine days in September
Cartaya, Spain

  • Average sunshine days in September: 24.6 days

The month with the most sunshine days is July (28.8 days).
The month with the least sunshine days is April (18.8 days).

Average UV index in September
Cartaya, Spain

  • Average UV index in September: 6

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

Average cloud cover in September
Cartaya, Spain

  • Average cloud cover in September: 14

The month with the most cloud cover is January (Cloud cover 30).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in September
Cartaya, 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).