September weather forecast
San José del Guaviare, Colombia

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Weather in September

September presents a significant change in the weather pattern in San José del Guaviare with dropping rainfall, hitting a relative low of 121mm (4.76"). The surge in sunshine hours complements the receding cloud cover, creating a brighter visual appeal. With a lower incidence of humidity and decreasing atmospheric pressure, a refreshing aura pervades the air. The wind maintains a steady, rejiggling mild gusts and brushing the city with a fresh breeze.

Temperature

The arrival of September brings an average high-temperature of a hot 30.5°C (86.9°F), closely following the temperature pattern of August. In San José del Guaviare, the nighttime temperature averages to a pleasant 20.7°C (69.3°F) during September.

Heat index

For most parts of September, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in September in San José del Guaviare is 84%.

Rainfall

In San José del Guaviare, in September, during 25.8 rainfall days, 121mm (4.76") of precipitation is typically accumulated. In San José del Guaviare, during the entire year, the rain falls for 300.1 days and collects up to 1896mm (74.65") of precipitation.

Daylight

The average length of the day in September in San José del Guaviare is 12h and 8min.
On the first day of September in San José del Guaviare, sunrise is at 05:45 and sunset at 17:55. On the last day of the month, sunrise is at 05:37 and sunset at 17:43 -05.

Sunshine

In San José del Guaviare, the average sunshine in September is 7.8h.

UV index

January through May, July through December, with an average maximum UV index of 6, are months with the highest UV index in San José del Guaviare, Colombia. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

How hot does it get in San José del Guaviare in September?

The average high-temperature and low-temperature in San José del Guaviare, Colombia, during September are 30.5°C (86.9°F) and 20.7°C (69.3°F) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is appraised at 41°C (105.8°F).

What is the average humidity in September in San José del Guaviare?

In San José del Guaviare, the average relative humidity in September is 84%.

How many days does it rain in September in San José del Guaviare?

In San José del Guaviare, Colombia, during September, the rain falls for 25.8 days and regularly aggregates up to 121mm (4.76") of precipitation.

How many hours of daylight does San José del Guaviare have in September?

The average day length in September in San José del Guaviare is 12h and 8min.

When are sunrise and sunset in September in San José del Guaviare?

On the first day of September in San José del Guaviare, Colombia, sunrise is at 05:45 and sunset at 17:55. On the last day of the month, sunrise is at 05:37 and sunset at 17:43 -05.

How long on average sun shines in September in San José del Guaviare?

The average sunshine duration in September in San José del Guaviare, Colombia, is 7.8h.

When is the highest UV index in San José del Guaviare?

January through May, July through December, with an average maximum UV index of 6, are months with the highest UV index in San José del Guaviare.

What is the UV index intensity in September in San José del Guaviare?

In San José del Guaviare, Colombia, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in September
San José del Guaviare, Colombia

Average temperature in September - San José del Guaviare, Colombia
  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is February (31.8°C).
The month with the lowest average high temperature is June (26.9°C).

  • Average low temperature in September: 20.7°C

The month with the highest average low temperature is February (21.7°C).
The coldest months (with the lowest average low temperature) are June and July (20.2°C).

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Average pressure in September
San José del Guaviare, Colombia

Average pressure in September - San José del Guaviare, Colombia
  • Average pressure in September: 1011.7mbar

The month with the highest atmospheric pressure is July (1013.7mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).

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Average wind speed in September
San José del Guaviare, Colombia

Average wind speed in September - San José del Guaviare, Colombia
  • Average wind speed in September: 4.1km/h

The windiest months (with the highest average wind speed) are January and December (6.3km/h).
The calmest months (with the lowest average wind speed) are May, August and September (4.1km/h).

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Average humidity in September
San José del Guaviare, Colombia

Average humidity in September - San José del Guaviare, Colombia
  • Average humidity in September: 84%

The months with the highest relative humidity are May and June (92%).
The month with the lowest relative humidity is January (69%).

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Average rainfall in September
San José del Guaviare, Colombia

Average rainfall in September - San José del Guaviare, Colombia
  • Average rainfall in September: 121mm

The wettest month (with the highest rainfall) is April (252mm).
The driest month (with the least rainfall) is January (52mm).

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Average rainfall days in September
San José del Guaviare, Colombia

Average rainfall days in September - San José del Guaviare, Colombia
  • Average rainfall days in September: 25.8 days

The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is January (13.8 days).

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Average daylight in September /
Average sunshine in September
San José del Guaviare, Colombia

Average daylight in September / Average sunshine in September - San José del Guaviare, Colombia
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 12h and 0min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is February (Average sunshine: 8h and 18min).
The months with the least sunshine are May and June (Average sunshine: 4h and 48min).

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Average sunshine days in September
San José del Guaviare, Colombia

Average sunshine days in September - San José del Guaviare, Colombia
  • Average sunshine days in September: 3.2 days

The month with the most sunshine days is January (15.2 days).
The month with the least sunshine days is April (1.1 days).

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Average UV index in September
San José del Guaviare, Colombia

Average UV index in September - San José del Guaviare, Colombia
  • Average UV index in September: 6

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

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Average cloud cover in September
San José del Guaviare, Colombia

Average cloud cover in September - San José del Guaviare, Colombia
  • Average cloud cover in September: 52

The month with the most cloud cover is June (Cloud cover 75).
The month with the least cloud cover is January (Cloud cover 37).

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Average visibility in September
San José del Guaviare, Colombia

Average visibility in September - San José del Guaviare, Colombia
  • Average visibility in September: 7km

The months with the highest visibility are January and February (9km).
The months with the lowest visibility are May and June (5km).

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San José del Guaviare, Colombia

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