September weather forecastMarchena, Spain
September
Weather in September
The first month of the autumn, September, is still a tropical month in Marchena, Spain, with an average temperature fluctuating between 18.7°C (65.7°F) and 31.2°C (88.2°F).Temperature
September suggests a modest reduction in the average high-temperature, shifting from a sweltering 36.7°C (98.1°F) in August to a tropical 31.2°C (88.2°F). In Marchena, a significant divergence from daytime highs is recorded, with average lows of 18.7°C (65.7°F) during September nights.Heat index
The heat index value during September is computed to be a tropical 33°C (91.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In Marchena, the average relative humidity in September is 51%.Rainfall
In Marchena, Spain, during September, the rain falls for 4.9 days and regularly aggregates up to 13mm (0.51") of precipitation. In Marchena, during the entire year, the rain falls for 77.4 days and collects up to 290mm (11.42") of precipitation.Daylight
In Marchena, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 07:52 and sunset at 20:50. On the last day of the month, sunrise is at 08:16 and sunset at 20:06 CEST.
Sunshine
In Marchena, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Marchena, Spain
- Average high temperature in September: 31.2°C
The warmest month (with the highest average high temperature) is August (36.7°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in September: 18.7°C
The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is February (6.1°C).
Average pressure in September
Marchena, Spain
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is August (1014.9mbar).
Average wind speed in September
Marchena, Spain
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is March (10.1km/h).
The calmest month (with the lowest average wind speed) is September (7.7km/h).
Average humidity in September
Marchena, Spain
- Average humidity in September: 51%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Marchena, Spain
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is November (48mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Marchena, Spain
- Average rainfall days in September: 4.9 days
The month with the highest number of rainy days is March (11.8 days).
The months with the least rainy days are July and August (1.4 days).
Average daylight in September /
Average sunshine in September
Marchena, 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 March (Average sunshine: 8h and 6min).
Average sunshine days in September
Marchena, Spain
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is April (17.6 days).
Average UV index in September
Marchena, Spain
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Marchena, Spain
- Average cloud cover in September: 14
The month with the most cloud cover is March (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Marchena, Spain
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March, April and December (9km).








