September weather forecastAtaco, Colombia

September

Weather in September

September, the first month of the autumn in Ataco, is still a warm month, with an average temperature varying between 27.5°C (81.5°F) and 14.7°C (58.5°F).

Temperature

September brings an average high-temperature of a still warm 27.5°C (81.5°F), aligning with the conditions of the preceding month. Ataco documents a significant temperature variance in September, with the mean nighttime lows settling at a moderate 14.7°C (58.5°F).

Heat index

During September, the heat index is calculated to be 29°C (84.2°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

August and September, with an average relative humidity of 58%, are the least humid months.

Rainfall

In September, the rain falls for 12.5 days. Throughout September, 44mm (1.73") of precipitation is accumulated. In Ataco, during the entire year, the rain falls for 194.2 days and collects up to 719mm (28.31") of precipitation.

Daylight

In Ataco, the average length of the day in September is 12h and 8min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:06. On the last day of September, sunrise is at 05:48 and sunset at 17:53 -05.

Sunshine

The average sunshine in September in Ataco is 10.7h.

UV index

February, May through July, September through December, with an average maximum UV index of 5, are months with the lowest UV index in Ataco. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

In September, in Ataco, the average high-temperature is 27.5°C (81.5°F), and the average low-temperature is 14.7°C (58.5°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 29°C (84.2°F).

The months with the lowest humidity are August and September, with an average relative humidity of 58%.

The average relative humidity in September is 58%.

In Ataco, in September, it is raining for 12.5 days, with typically 44mm (1.73") of accumulated precipitation.

In September, the average day length is 12h and 8min.

In September, on the first day of the month, sunrise is at 05:55 and sunset at 18:06. On the last day of the month, sunrise is at 05:48 and sunset at 17:53 -05.

In September, the average sunshine duration is 10.7h.

February, May through July, September through December, with an average maximum UV index of 5, are months with the lowest UV index.

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ataco, Colombia

  • Average high temperature in September: 27.5°C

The warmest month (with the highest average high temperature) is February (28.2°C).
The months with the lowest average high temperature are June and July (26.1°C).

  • Average low temperature in September: 14.7°C

The months with the highest average low temperature are April and May (15.3°C).
The coldest month (with the lowest average low temperature) is January (14°C).

Average pressure in September
Ataco, Colombia

  • Average pressure in September: 1014.3mbar

The month with the highest atmospheric pressure is July (1014.9mbar).
The month with the lowest atmospheric pressure is November (1012.7mbar).

Average wind speed in September
Ataco, Colombia

  • Average wind speed in September: 6.1km/h

The windiest months (with the highest average wind speed) are July and August (6.6km/h).
The calmest month (with the lowest average wind speed) is November (4.2km/h).

Average humidity in September
Ataco, Colombia

  • Average humidity in September: 58%

The month with the highest relative humidity is November (71%).
The months with the lowest relative humidity are August and September (58%).

Average rainfall in September
Ataco, Colombia

  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is November (96mm).
The driest month (with the least rainfall) is August (33mm).

Average rainfall days in September
Ataco, Colombia

  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is April (21.9 days).
The month with the least rainy days is August (10.8 days).

Average daylight in September /
Average sunshine in September
Ataco, Colombia

  • Average daylight in September: 12h and 6min

The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in September: 10h and 42min

The months with the most sunshine are May and June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 8h and 30min).

Average sunshine days in September
Ataco, Colombia

  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is January (16 days).
The month with the least sunshine days is April (4.2 days).

Average UV index in September
Ataco, Colombia

  • Average UV index in September: 5

The months with the highest UV index are January, March, April and August (UV index 6).
The months with the lowest UV index are February, May, June, July, September, October, November and December (UV index 5).

Average cloud cover in September
Ataco, Colombia

  • Average cloud cover in September: 24

The month with the most cloud cover is April (Cloud cover 34).
The month with the least cloud cover is January (Cloud cover 22).

Average visibility in September
Ataco, Colombia

  • Average visibility in September: 10km

The months with the highest visibility are February, June, July, August and September (10km).
The months with the lowest visibility are January, March, April, May, October, November and December (9km).