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 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
Weather in September
Temperature
The onset of September manifests an average high-temperature of a still warm 27.5°C (81.5°F), demonstrating a minor variation from the preceding month. A pronounced dip becomes evident during the nights in September as Roldanillo logs a consistent average temperature of 14.2°C (57.6°F).Heat index
September's heat index is evaluated at a hot 30°C (86°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
The average relative humidity in September is 68%.Rainfall
In Roldanillo, during September, the rain falls for 19 days and regularly aggregates up to 106mm (4.17") of precipitation. In Roldanillo, during the entire year, the rain falls for 264.8 days and collects up to 1451mm (57.13") of precipitation.Daylight
The average length of the day in September is 12h and 8min.On the first day of the month, sunrise is at 05:58 and sunset at 18:10. On the last day of September, in Roldanillo, sunrise is at 05:51 and sunset at 17:56 -05.
Sunshine
In September, the average sunshine in Roldanillo is 10.8h.UV index
January through December, with an average maximum UV index of 5, are months with the highest UV index in Roldanillo, Colombia. January through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 5 during September leads to these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the temperature in September in Roldanillo?
What is the average humidity in September in Roldanillo?
How much does it rain in Roldanillo in September?
What is the average length of the day in September in Roldanillo?
When are sunrise and sunset in September in Roldanillo?
How many hours of sunshine does Roldanillo have in September?
What is the month with the highest UV index in Roldanillo?
What are the months with the lowest UV index in Roldanillo?
What is the UV index reading in September in Roldanillo?
Average temperature in September
Roldanillo, Colombia
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is November (24.1°C).
- Average low temperature in September: 14.2°C
The month with the highest average low temperature is May (14.6°C).
The coldest month (with the lowest average low temperature) is January (13.4°C).
Average pressure in September
Roldanillo, Colombia
- Average pressure in September: 1013.6mbar
The months with the highest atmospheric pressure are June and July (1013.7mbar).
The month with the lowest atmospheric pressure is February (1012.5mbar).
Average wind speed in September
Roldanillo, Colombia
- Average wind speed in September: 3.7km/h
The windiest month (with the highest average wind speed) is July (4.1km/h).
The calmest month (with the lowest average wind speed) is November (3.1km/h).
Average humidity in September
Roldanillo, Colombia
- Average humidity in September: 68%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Roldanillo, Colombia
- Average rainfall in September: 106mm
The wettest month (with the highest rainfall) is April (182mm).
The driest month (with the least rainfall) is January (69mm).
Average rainfall days in September
Roldanillo, Colombia
- Average rainfall days in September: 19 days
The month with the highest number of rainy days is November (26.7 days).
The month with the least rainy days is July (18.4 days).
Average daylight in September /
Average sunshine in September
Roldanillo, Colombia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 54min).
Average sunshine days in September
Roldanillo, Colombia
- Average sunshine days in September: 7.6 days
The month with the most sunshine days is August (9 days).
The month with the least sunshine days is November (1.9 days).
Average UV index in September
Roldanillo, Colombia
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
Roldanillo, Colombia
- Average cloud cover in September: 26
The month with the most cloud cover is November (Cloud cover 43).
The months with the least cloud cover are August and September (Cloud cover 26).
Average visibility in September
Roldanillo, Colombia
- Average visibility in September: 9km
The months with the highest visibility are February, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, March, April, November and December (8km).
Roldanillo, Colombia
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