September weather forecast
Ayapel, 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.

Frequently asked questions

How hot is it in September?
In September, in Ayapel, the average high-temperature is 33.3°C (91.9°F), and the average low-temperature is 23°C (73.4°F). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 51°C (123.8°F).
What is the average humidity in September?
In September, the average relative humidity is 83%.
How many days does it rain in September?
In Ayapel, in September, it is raining for 28.4 days, with typically 200mm (7.87") of accumulated precipitation.
How many hours of daylight does Ayapel have in September?
In Ayapel, Colombia, the average day length in September is 12h and 10min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 05:52 and sunset at 18:08. On the last day of the month, sunrise is at 05:48 and sunset at 17:51 -05.
How many hours of sunshine does Ayapel have in September?
In September, the average sunshine duration is 8.6h.
What are the months with the highest UV index?
January, February, April through September and December, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index intensity in September?
In Ayapel, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Ayapel, Colombia
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
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
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
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
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
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 /
Average sunshine in September
Ayapel, Colombia
  • Average daylight in September: 12h and 1min

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 4min

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
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
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
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
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).

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