September weather forecast
Guasavito, Mexico

September

Weather in September

The first month of the autumn, September, is still a hot month in Guasavito, Mexico, with temperature in the range of an average high of 32.7°C (90.9°F) and an average low of 27.5°C (81.5°F).

Temperature

The onset of September notes an average high-temperature of a still hot 32.7°C (90.9°F), subtly shifted from August's 33.3°C (91.9°F). In the month of September, Guasavito's average low-temperature falls to a moderately hot 27.5°C (81.5°F).

Heat index

The heat index value during September is estimated at a blistering 42°C (107.6°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 69%.

Rainfall

September is the month with the most rainfall. Rain falls for 13.8 days and accumulates 71mm (2.8") of precipitation.

Daylight

The average length of the day in September is 12h and 17min.
On the first day of the month, sunrise is at 5:54 am and sunset at 6:32 pm. On the last day of September, sunrise is at 6:05 am and sunset at 6:01 pm MST.

Sunshine

The average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a regular UV index of 7 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

How hot does it get in September?
September temperatures in Guasavito vary between a high-temperature of 32.7°C (90.9°F) and a low-temperature of 27.5°C (81.5°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is estimated at 42°C (107.6°F).
What is the most humid month?
The months with the highest humidity are August and September, with an average relative humidity of 69%.
What is the average humidity in September in Guasavito?
The average relative humidity in September is 69%.
What is the rainiest month?
The month with the most rainfall is September, when the rain falls for 13.8 days and typically aggregates up to 71mm (2.8") of precipitation.
How many days does it rain in September?
In Guasavito, in September, it is raining for 13.8 days, with typically 71mm (2.8") of accumulated precipitation.
What is the average length of the day in September?
In September, the average day length is 12h and 17min.
When are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 5:54 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:01 pm MST.
How many hours of sunshine does Guasavito have in September?
In Guasavito, Mexico, the average sunshine duration in September is 9.7h.
What is the UV index reading in September?
In Guasavito, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to 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
Guasavito, Mexico
  • Average high temperature in September: 32.7°C

The warmest month (with the highest average high temperature) is August (33.3°C).
The month with the lowest average high temperature is January (23.8°C).

  • Average low temperature in September: 27.5°C

The month with the highest average low temperature is August (28.2°C).
The coldest months (with the lowest average low temperature) are January and February (16.6°C).

Average pressure in September
Guasavito, Mexico
  • Average pressure in September: 1009.5mbar

The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is September (1009.5mbar).

Average wind speed in September
Guasavito, Mexico
  • Average wind speed in September: 12.6km/h

The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (12.5km/h).

Average humidity in September
Guasavito, Mexico
  • Average humidity in September: 69%

The months with the highest relative humidity are August and September (69%).
The month with the lowest relative humidity is May (52%).

Average rainfall in September
Guasavito, Mexico
  • Average rainfall in September: 71mm

The wettest month (with the highest rainfall) is September (71mm).
The driest month (with the least rainfall) is April (1mm).

Average rainfall days in September
Guasavito, Mexico
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is May (1.2 days).

Average daylight in September /
Average sunshine in September
Guasavito, Mexico
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).

Average sunshine days in September
Guasavito, Mexico
  • Average sunshine days in September: 14 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Guasavito, Mexico
  • Average UV index in September: 7

The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 5).

Average cloud cover in September
Guasavito, Mexico
  • Average cloud cover in September: 21

The month with the most cloud cover is July (Cloud cover 23).
The month with the least cloud cover is May (Cloud cover 7).

Average visibility in September
Guasavito, Mexico
  • Average visibility in September: 10km

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

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