Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The shift from August to September involves a decrease in the average high-temperature, from a hot 33.1°C (91.6°F) to a moderately hot 27.8°C (82°F). Lillo observes an average nighttime temperature of 16.5°C (61.7°F) during September.Heat index
September's heat index is evaluated at 28°C (82.4°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in September in Lillo is 42%.Rainfall
In Lillo, in September, it is raining for 5.5 days, with typically 18mm (0.71") of accumulated precipitation. In Lillo, during the entire year, the rain falls for 91.9 days and collects up to 290mm (11.42") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Lillo, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 07:41 and sunset at 20:44. On the last day of the month, sunrise is at 08:08 and sunset at 19:57 CEST.
Sunshine
The average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Lillo?
What is the average humidity in September in Lillo?
How much does it rain in Lillo in September?
When it does not snow in Lillo?
How many hours of daylight does Lillo have in September?
When is the sunrise / sunset in September in Lillo?
How many hours of sunshine does Lillo have in September?
What is the UV index reading in September in Lillo?
Average temperature in September
Lillo, Spain
- Average high temperature in September: 27.8°C
The warmest month (with the highest average high temperature) is July (33.6°C).
The month with the lowest average high temperature is January (10.3°C).
- Average low temperature in September: 16.5°C
The month with the highest average low temperature is July (20.8°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).
Average pressure in September
Lillo, Spain
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1023.6mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Lillo, Spain
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is March (14.4km/h).
The calmest months (with the lowest average wind speed) are September and October (10.4km/h).
Average humidity in September
Lillo, Spain
- Average humidity in September: 42%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is July (31%).
Average rainfall in September
Lillo, Spain
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is April (52mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in September
Lillo, Spain
- Average rainfall days in September: 5.5 days
The month with the highest number of rainy days is April (13.4 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in September
Lillo, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Lillo, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Lillo, Spain
- Average daylight in September: 12h and 2min
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 3min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Lillo, Spain
- Average sunshine days in September: 23.6 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is April (15.1 days).
Average UV index in September
Lillo, Spain
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Lillo, Spain
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in September
Lillo, Spain
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
