September weather forecast
El Retorno, Colombia

The first month of the autumn, September, is a hot month in El Retorno, Colombia, with an average temperature fluctuating between 20.7°C (69.3°F) and 30.5°C (86.9°F).

Temperature

As September unfolds, the average high-temperature reaches a tropical 30.5°C (86.9°F), hinting at a slight fluctuation from the previous month. In El Retorno, in September, the average low-temperature is a pleasant 20.7°C (69.3°F).

Heat index

For September, the heat index is appraised at a blistering 41°C (105.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in September is 84%.

Rainfall

In El Retorno, in September, during 25.8 rainfall days, 121mm (4.76") of precipitation is typically accumulated. In El Retorno, during the entire year, the rain falls for 300.1 days and collects up to 1896mm (74.65") of precipitation.

Daylight

In El Retorno, Colombia, the average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 05:45 and sunset at 17:55. On the last day of the month, sunrise is at 05:37 and sunset at 17:43 -05.

Sunshine

In September, the average sunshine in El Retorno, Colombia, is 7.8h.

UV index

January through May, July through December, with an average maximum UV index of 6, are months with the highest UV index in El Retorno. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 in September translates into this advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.