September weather forecast
Colombia, Cuba

The first month of the autumn, September, is also a hot month in Colombia, Cuba, with an average temperature fluctuating between 32.3°C (90.1°F) and 22.9°C (73.2°F).

Temperature

With the onset of September, Colombia's average high-temperature clocks in at a still hot 32.3°C (90.1°F), showing a minor fluctuation from the previous month. Colombia records an average low-temperature of 22.9°C (73.2°F) throughout the month of September.

Heat index

Throughout September, the heat index is estimated at a blazing hot 47°C (116.6°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Colombia, the average relative humidity in September is 83%.

Rainfall

The month with the most rainfall in Colombia is September, when the rain falls for 22 days and typically aggregates up to 127mm (5") of precipitation.

Daylight

The average length of the day in September in Colombia is 12h and 16min.
On the first day of September in Colombia, Cuba, sunrise is at 06:53 and sunset at 19:25. On the last day of the month, sunrise is at 07:00 and sunset at 18:58 CDT.

Sunshine

In Colombia, the average sunshine in September is 10.4h.

UV index

The months with the highest UV index in Colombia are April through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a regular UV index of 7 translates into these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.