September weather forecast and climate
San Bernardo del Viento, Colombia

Weather in September

The first month of the autumn, September, is also a hot month in San Bernardo del Viento, Colombia, with average temperature ranging between max 30.8°C (87.4°F) and min 24.9°C (76.8°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still hot 30.8°C (87.4°F). In San Bernardo del Viento, in September, the average low-temperature is 24.9°C (76.8°F).

Heat index

In September, the average heat index is appraised at a scorching 40.9°C (105.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. 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 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, wind, pregnancy). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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

In San Bernardo del Viento, the average relative humidity in September is 82%.

Rainfall

In San Bernardo del Viento, during September, the rain falls for 26.3 days and regularly aggregates up to 125mm (4.92") of precipitation. Throughout the year, there are 291.1 rainfall days, and 1364mm (53.7") of precipitation is accumulated.

Daylight

In September, the average length of the day in San Bernardo del Viento is 12.2h.

Sunshine

In San Bernardo del Viento, the average sunshine in September is 10h.

UV index

Months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 San Bernardo del Viento?

In September, the average high-temperature is 30.8°C (87.4°F), and the average low-temperature is 24.9°C (76.8°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in September is calculated to 40.9°C (105.6°F).

What is the average humidity in September in San Bernardo del Viento?

In San Bernardo del Viento, Colombia, the average relative humidity in September is 82%.

How many days does it rain in September in San Bernardo del Viento?

In September, in San Bernardo del Viento, the rain falls for 26.3 days. Throughout September, 125mm (4.92") of precipitation is accumulated.

How many hours of daylight does San Bernardo del Viento have in September?

The average length of the day in September in San Bernardo del Viento is 12.2h.

How long on average sun shines in September in San Bernardo del Viento?

The average sunshine in September is 10h.

What are the months with the highest UV index in San Bernardo del Viento?

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

When is the lowest UV index in San Bernardo del Viento?

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

What is the UV index intensity in September in San Bernardo del Viento?

In September, the average daily maximum UV index in San Bernardo del Viento is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
San Bernardo del Viento, Colombia

Average temperature in September - San Bernardo del Viento, Colombia
  • Average high temperature in September: 30.8°C

The warmest month (with the highest average high temperature) is February (33°C).
The month with the lowest average high temperature is October (30.4°C).

  • Average low temperature in September: 24.9°C

The month with the highest average low temperature is April (25.8°C).
The coldest month (with the lowest average low temperature) is December (24.2°C).

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Average pressure in September
San Bernardo del Viento, Colombia

Average pressure in September - San Bernardo del Viento, Colombia
  • Average pressure in September: 1009.4mbar

Months with the highest atmospheric pressure are May and September (1009.4mbar).
Months with the lowest atmospheric pressure are February, November and December (1008.8mbar).

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Average wind speed in September
San Bernardo del Viento, Colombia

Average wind speed in September - San Bernardo del Viento, Colombia
  • Average wind speed in September: 7.9km/h

The windiest month (with the highest average wind speed) is March (10.9km/h).
The calmest month (with the lowest average wind speed) is June (7.4km/h).

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Average humidity in September
San Bernardo del Viento, Colombia

Average humidity in September - San Bernardo del Viento, Colombia
  • Average humidity in September: 82%

The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is February (73%).

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Average rainfall in September
San Bernardo del Viento, Colombia

Average rainfall in September - San Bernardo del Viento, Colombia
  • Average rainfall in September: 125mm

The wettest month (with the highest rainfall) is October (187mm).
The driest month (with the least rainfall) is February (26mm).

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Average rainfall days in September
San Bernardo del Viento, Colombia

Average rainfall days in September - San Bernardo del Viento, Colombia
  • Average rainfall days in September: 26.3 days

The month with the highest number of rainy days is October (29.2 days).
The month with the least rainy days is February (13.4 days).

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Average daylight in September /
Average sunshine in September
San Bernardo del Viento, Colombia

Average daylight in September / Average sunshine in September - San Bernardo del Viento, Colombia
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.7h).
Months with the shortest days are January and December (Average daylight: 11.6h).

  • Average sunshine in September: 10h

Months with the most sunshine are July and August (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 6.9h).

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Average sunshine days in September
San Bernardo del Viento, Colombia

Average sunshine days in September - San Bernardo del Viento, Colombia
  • Average sunshine days in September: 3.4 days

The month with the most sunshine days is January (13 days).
The month with the least sunshine days is November (1.1 days).

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Average UV index in September
San Bernardo del Viento, Colombia

Average UV index in September - San Bernardo del Viento, 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
San Bernardo del Viento, Colombia

Average cloud cover in September - San Bernardo del Viento, Colombia
  • Average cloud cover in September: 35

Months with the most cloud cover are April and October (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 24).

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Average visibility in September
San Bernardo del Viento, Colombia

Average visibility in September - San Bernardo del Viento, Colombia
  • Average visibility in September: 10km

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

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