September weather forecast and climate
El Castellano, Colombia

Weather in September

The first month of the autumn, September, is still a hot month in El Castellano, Colombia, with average temperature ranging between max 31.6°C (88.9°F) and min 26.2°C (79.2°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still hot 31.6°C (88.9°F). The average low-temperature, in September, is 26.2°C (79.2°F).

Heat index

In September, the average heat index is estimated at a scorching 40.7°C (105.3°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, clothing, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in El Castellano is 74%.

Rainfall

In El Castellano, during September, the rain falls for 21.5 days and regularly aggregates up to 98mm (3.86") of precipitation. Throughout the year, there are 168.7 rainfall days, and 720mm (28.35") of precipitation is accumulated.

Daylight

The average length of the day in El Castellano is 12.2h.

Sunshine

The average sunshine in El Castellano is 9.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. Months with the lowest UV index in El Castellano are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in El Castellano?

In El Castellano, in September, the average high-temperature is 31.6°C (88.9°F), and the average low-temperature is 26.2°C (79.2°F). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, is calculated to 40.7°C (105.3°F).

What is the average humidity in September in El Castellano?

In El Castellano, the average relative humidity in September is 74%.

How many days does it rain in September in El Castellano?

In El Castellano, Colombia, in September, during 21.5 rainfall days, 98mm (3.86") of precipitation is typically accumulated.

How many hours of daylight does El Castellano have in September?

In El Castellano, Colombia, the average length of the day in September is 12.2h.

How many hours of sunshine does El Castellano have in September?

In September, the average sunshine in El Castellano is 9.5h.

When is the highest UV index in El Castellano?

Months with the highest UV index in El Castellano are January through December, with an average maximum UV index of 7.

What is the month with the lowest UV index in El Castellano?

Months with the lowest UV index in El Castellano are January through December, with an average maximum UV index of 7.

What is the UV index intensity in September in El Castellano?

In El Castellano, Colombia, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
El Castellano, Colombia

Average temperature in September - El Castellano, Colombia
  • Average high temperature in September: 31.6°C

The warmest months (with the highest average high temperature) are July and August (32.3°C).
The month with the lowest average high temperature is January (30.1°C).

  • Average low temperature in September: 26.2°C

Months with the highest average low temperature are June and August (26.3°C).
The coldest month (with the lowest average low temperature) is January (24.2°C).

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Average pressure in September
El Castellano, Colombia

Average pressure in September - El Castellano, Colombia
  • Average pressure in September: 1009.9mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
Months with the lowest atmospheric pressure are October and November (1009.7mbar).

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Average wind speed in September
El Castellano, Colombia

Average wind speed in September - El Castellano, Colombia
  • Average wind speed in September: 11.8km/h

The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is October (11km/h).

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Average humidity in September
El Castellano, Colombia

Average humidity in September - El Castellano, Colombia
  • Average humidity in September: 74%

The month with the highest relative humidity is November (77%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in September
El Castellano, Colombia

Average rainfall in September - El Castellano, Colombia
  • Average rainfall in September: 98mm

The wettest month (with the highest rainfall) is October (126mm).
The driest month (with the least rainfall) is February (5mm).

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Average rainfall days in September
El Castellano, Colombia

Average rainfall days in September - El Castellano, Colombia
  • Average rainfall days in September: 21.5 days

The month with the highest number of rainy days is October (22.5 days).
The month with the least rainy days is February (4.6 days).

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Average daylight in September /
Average sunshine in September
El Castellano, Colombia

Average daylight in September / Average sunshine in September - El Castellano, Colombia
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.8h).
The month with the shortest days is December (Average daylight: 11.5h).

  • Average sunshine in September: 9.5h

The month with the most sunshine is August (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 6.9h).

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Average sunshine days in September
El Castellano, Colombia

Average sunshine days in September - El Castellano, Colombia
  • Average sunshine days in September: 6.6 days

The month with the most sunshine days is January (22.8 days).
Months with the least sunshine days are September and October (6.6 days).

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Average UV index in September
El Castellano, Colombia

Average UV index in September - El Castellano, Colombia
  • Average UV index in September: 7

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

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Average cloud cover in September
El Castellano, Colombia

Average cloud cover in September - El Castellano, Colombia
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in September
El Castellano, Colombia

Average visibility in September - El Castellano, Colombia
  • Average visibility in September: 10km

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

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