September weather forecastAyapel, Colombia
September
Weather in September
The first month of the autumn, September, is still a hot month in Ayapel, Colombia, with an average temperature varying between 33.3°C (91.9°F) and 23°C (73.4°F).Temperature
As September takes its course, Ayapel's average high-temperature registers at a still tropical 33.3°C (91.9°F), closely aligning with the preceding month. The average temperature during September nights dips to a warm 23°C (73.4°F).Heat index
For most parts of September, the heat index is computed to be a blazing hot 51°C (123.8°F). Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In Ayapel, Colombia, the average relative humidity in September is 83%.Rainfall
In Ayapel, during September, the rain falls for 28.4 days and regularly aggregates up to 200mm (7.87") of precipitation. Throughout the year, there are 324.2 rainfall days, and 2352mm (92.6") of precipitation is accumulated.Daylight
In Ayapel, the average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 05:52 and sunset at 18:08. On the last day of September, sunrise is at 05:48 and sunset at 17:51 -05.
Sunshine
The average sunshine in September is 8.6h.UV index
The months with the highest UV index are January, February, April through September and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ayapel, Colombia
- Average high temperature in September: 33.3°C
The warmest month (with the highest average high temperature) is February (35°C).
The month with the lowest average high temperature is November (31.8°C).
- Average low temperature in September: 23°C
The month with the highest average low temperature is March (24.3°C).
The coldest month (with the lowest average low temperature) is December (22.5°C).
Average pressure in September
Ayapel, Colombia
- Average pressure in September: 1009.7mbar
The months with the highest atmospheric pressure are May and September (1009.7mbar).
The month with the lowest atmospheric pressure is February (1008.9mbar).
Average wind speed in September
Ayapel, Colombia
- Average wind speed in September: 4.3km/h
The windiest month (with the highest average wind speed) is March (5.2km/h).
The calmest months (with the lowest average wind speed) are November and December (4km/h).
Average humidity in September
Ayapel, Colombia
- Average humidity in September: 83%
The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is February (74%).
Average rainfall in September
Ayapel, Colombia
- Average rainfall in September: 200mm
The wettest month (with the highest rainfall) is October (298mm).
The driest month (with the least rainfall) is February (68mm).
Average rainfall days in September
Ayapel, Colombia
- Average rainfall days in September: 28.4 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (20.8 days).
Average daylight in September /
Average sunshine in September
Ayapel, Colombia
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Ayapel, Colombia
- Average sunshine days in September: 1.3 days
The month with the most sunshine days is January (8.6 days).
The month with the least sunshine days is April (0.3 days).
Average UV index in September
Ayapel, Colombia
- Average UV index in September: 7
The months with the highest UV index are January, February, April, May, June, July, August, September and December (UV index 7).
The months with the lowest UV index are March, October and November (UV index 6).
Average cloud cover in September
Ayapel, Colombia
- Average cloud cover in September: 49
The month with the most cloud cover is November (Cloud cover 57).
The months with the least cloud cover are January and February (Cloud cover 37).
Average visibility in September
Ayapel, Colombia
- Average visibility in September: 7km
The months with the highest visibility are February and March (9km).
The month with the lowest visibility is November (6km).





