September weather forecastCilleros, Spain
September
Weather in September
September, the first month of the autumn in Cilleros, is still a warm month, with temperature in the range of an average high of 29.1°C (84.4°F) and an average low of 15.5°C (59.9°F).Temperature
Cilleros's September weather comes with a decrease in average high-temperatures, moving from a hot 34.1°C (93.4°F) in August to a warm 29.1°C (84.4°F). With a notable disparity from daily peak temperatures, the average low-temperature settles at a moderate 15.5°C (59.9°F) throughout September.Heat index
The heat index for September is appraised at 29°C (84.2°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In September, the average relative humidity is 44%.Rainfall
In Cilleros, in September, during 4.2 rainfall days, 15mm (0.59") of precipitation is typically accumulated. In Cilleros, during the entire year, the rain falls for 90.5 days and collects up to 399mm (15.71") of precipitation.Snowfall
February through December are months without snowfall in Cilleros.Daylight
In September, the average length of the day in Cilleros is 12h and 27min.On the first day of the month, sunrise is at 07:55 and sunset at 20:58. On the last day of September, in Cilleros, sunrise is at 08:23 and sunset at 20:10 CEST.
Sunshine
The average sunshine in September in Cilleros is 9.5h.UV index
In September, the average daily maximum UV index in Cilleros is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cilleros, 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
Cilleros, 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
Cilleros, 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
Cilleros, 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
Cilleros, 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
Cilleros, 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
Cilleros, 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
Cilleros, 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
Cilleros, Spain
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
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
Cilleros, 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
Cilleros, 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
Cilleros, 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
Cilleros, 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).





