September weather forecast
San José del Guaviare, Colombia

September presents a significant change in the weather pattern in San José del Guaviare with dropping rainfall, hitting a relative low of 121mm (4.76"). The surge in sunshine hours complements the receding cloud cover, creating a brighter visual appeal. With a lower incidence of humidity and decreasing atmospheric pressure, a refreshing aura pervades the air. The wind maintains a steady, rejiggling mild gusts and brushing the city with a fresh breeze.

Temperature

The arrival of September in San José del Guaviare, Colombia, is marked by an average high-temperature of a hot 30.5°C (86.9°F), bearing a close resemblance to August. In September, San José del Guaviare's temperature tends to fall to an average low of 20.7°C (69.3°F) during the night.

Heat index

The heat index value during September is computed to be a scorching 41°C (105.8°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In September, the average relative humidity is 84%.

Rainfall

In September, the rain falls for 25.8 days. Throughout September, 121mm (4.76") of precipitation is accumulated. Throughout the year, there are 300.1 rainfall days, and 1896mm (74.65") of precipitation is accumulated.

Daylight

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

Sunshine

In San José del Guaviare, the average sunshine in September is 7.8h.

UV index

The months with the highest UV index are January through May, July through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during September leads to these advisories:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.