September weather forecastSerrejón, Spain
September
Weather in September
The first month of the autumn, September, is still a warm month in Serrejón, Spain, with an average temperature ranging between max 29.1°C (84.4°F) and min 15.5°C (59.9°F).Temperature
September brings a minor decrease, with the average high-temperature reducing from a hot 34.1°C (93.4°F) in August to a moderately hot 29.1°C (84.4°F). Serrejón marks a considerable descent from the daytime apex, as the average temperature dips to a refreshing 15.5°C (59.9°F) at night throughout September.Heat index
The heat index in September is appraised at 29°C (84.2°F). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In September, the average relative humidity is 44%.Rainfall
In Serrejón, Spain, in September, it is raining for 4.2 days, with typically 15mm (0.59") of accumulated precipitation. Throughout the year, there are 90.5 rainfall days, and 399mm (15.71") of precipitation is accumulated.Snowfall
February through December are months without snowfall in Serrejón.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 07:51 and sunset at 20:54. On the last day of September, sunrise is at 08:18 and sunset at 20:07 CEST.
Sunshine
In September, the average sunshine is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Serrejón, Spain
- Average high temperature in September: 29.1°C
The warmest month (with the highest average high temperature) is August (34.1°C).
The month with the lowest average high temperature is January (11.5°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is July (18.3°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in September
Serrejón, Spain
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is December (1023.5mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Serrejón, Spain
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is March (10.4km/h).
The calmest months (with the lowest average wind speed) are September and October (7.8km/h).
Average humidity in September
Serrejón, Spain
- Average humidity in September: 44%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (35%).
Average rainfall in September
Serrejón, Spain
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is November (60mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in September
Serrejón, Spain
- Average rainfall days in September: 4.2 days
The month with the highest number of rainy days is April (11.8 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Serrejón, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Serrejón, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Serrejón, Spain
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Serrejón, Spain
- Average sunshine days in September: 24.9 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is April (16.9 days).
Average UV index in September
Serrejón, Spain
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Serrejón, Spain
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 39).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in September
Serrejón, Spain
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).





