September weather forecast
Mamonal, Colombia

September

Weather in September

September, the first month of the autumn in Mamonal, is also a hot month, with an average temperature fluctuating between 30.5°C (86.9°F) and 26.8°C (80.2°F).

Temperature

The arrival of September denotes a barely perceptible change in the average high-temperatures to a still hot 30.5°C (86.9°F) from August's 30.8°C (87.4°F). Mamonal maintains an average of approximately a moderately hot 26.8°C (80.2°F) during September nights, with only a minimal decrease from the daytime temperature.

Heat index

During September, the heat index is appraised at a very hot 38°C (100.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. 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.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Mamonal, the average relative humidity in September is 77%.

Rainfall

In Mamonal, during September, the rain falls for 25.5 days and regularly aggregates up to 150mm (5.91") of precipitation. In Mamonal, during the entire year, the rain falls for 210.6 days and collects up to 1115mm (43.9") of precipitation.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 05:52 and sunset at 18:11. On the last day of the month, sunrise is at 05:50 and sunset at 17:52 -05.

Sunshine

The average sunshine in September is 10.2h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

Is it hot during September?
The average high-temperature and low-temperature during September are 30.5°C (86.9°F) and 26.8°C (80.2°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is appraised at 38°C (100.4°F).
What is the average humidity in September in Mamonal?
In Mamonal, the average relative humidity in September is 77%.
How much does it rain in September?
In Mamonal, in September, it is raining for 25.5 days, with typically 150mm (5.91") of accumulated precipitation.
What is the average length of the day in September?
In Mamonal, the average day length in September is 12h and 11min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 05:52 and sunset at 18:11. On the last day of the month, sunrise is at 05:50 and sunset at 17:52 -05.
How many hours of sunshine does Mamonal have in September?
The average sunshine duration in September is 10.2h.
When is the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What are the months with the lowest UV index?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
How high is the UV index in September in Mamonal?
The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability 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 - Mamonal, Colombia
Average temperature in September
Mamonal, Colombia
  • Average high temperature in September: 30.5°C

The warmest months (with the highest average high temperature) are February, June and July (31.1°C).
The months with the lowest average high temperature are October and November (29.8°C).

  • Average low temperature in September: 26.8°C

The month with the highest average low temperature is June (26.9°C).
The coldest month (with the lowest average low temperature) is January (25.8°C).

Average pressure in September - Mamonal, Colombia
Average pressure in September
Mamonal, Colombia
  • Average pressure in September: 1009.5mbar

The month with the highest atmospheric pressure is January (1009.6mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).

Average wind speed in September - Mamonal, Colombia
Average wind speed in September
Mamonal, Colombia
  • Average wind speed in September: 11.1km/h

The windiest month (with the highest average wind speed) is March (22km/h).
The calmest month (with the lowest average wind speed) is October (10.9km/h).

Average humidity in September - Mamonal, Colombia
Average humidity in September
Mamonal, Colombia
  • Average humidity in September: 77%

The month with the highest relative humidity is November (79%).
The month with the lowest relative humidity is February (71%).

Average rainfall in September - Mamonal, Colombia
Average rainfall in September
Mamonal, Colombia
  • Average rainfall in September: 150mm

The wettest month (with the highest rainfall) is October (221mm).
The driest month (with the least rainfall) is February (3mm).

Average rainfall days in September - Mamonal, Colombia
Average rainfall days in September
Mamonal, Colombia
  • Average rainfall days in September: 25.5 days

The month with the highest number of rainy days is October (28.2 days).
The month with the least rainy days is February (2.6 days).

Average daylight in September / Average sunshine in September - Mamonal, Colombia
Average daylight in September /
Average sunshine in September
Mamonal, Colombia
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in September - Mamonal, Colombia
Average sunshine days in September
Mamonal, Colombia
  • Average sunshine days in September: 2.8 days

The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is October (1.9 days).

Average UV index in September - Mamonal, Colombia
Average UV index in September
Mamonal, Colombia
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in September - Mamonal, Colombia
Average cloud cover in September
Mamonal, Colombia
  • Average cloud cover in September: 31

The month with the most cloud cover is October (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 15).

Average visibility in September - Mamonal, Colombia
Average visibility in September
Mamonal, Colombia
  • Average visibility in September: 10km

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

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