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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).








