September weather forecast
Chiquimulilla, Guatemala

September

Weather in September

The first month of the autumn, September, is still a warm month in Chiquimulilla, Guatemala, with an average temperature varying between 27.3°C (81.1°F) and 19°C (66.2°F).

Temperature

The shift into September records an average high-temperature of a still warm 27.3°C (81.1°F), subtly varied from August's 28.3°C (82.9°F). During the nights in September, Chiquimulilla observes an average low-temperature of 19°C (66.2°F).

Heat index

September's mean heat index is estimated at a tropical 31°C (87.8°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

The most humid month is September, with an average relative humidity of 84%.

Rainfall

In Chiquimulilla, in September, during 29.4 rainfall days, 230mm (9.06") of precipitation is typically accumulated. In Chiquimulilla, during the entire year, the rain falls for 228.7 days and collects up to 1368mm (53.86") of precipitation.

Daylight

In September, the average length of the day is 12h and 12min.
On the first day of the month, sunrise is at 05:49 and sunset at 18:12. On the last day of September, sunrise is at 05:50 and sunset at 17:51 CST.

Sunshine

In September, the average sunshine is 9.7h.

UV index

January through December, with an average maximum UV index of 6, 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 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in September leads to these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What is the usual temperature for Chiquimulilla in September?
Chiquimulilla in September has an average high-temperature of 27.3°C (81.1°F) and an average low-temperature of 19°C (66.2°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 31°C (87.8°F).
What is the most humid month?
September is the most humid month, with an average relative humidity of 84%.
What is the average humidity in September?
In Chiquimulilla, the average relative humidity in September is 84%.
How many days does it rain in September?
In Chiquimulilla, in September, it is raining for 29.4 days, with typically 230mm (9.06") of accumulated precipitation.
What is the average length of the day in September?
In September, the average day length is 12h and 12min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 05:49 and sunset at 18:12. On the last day of the month, sunrise is at 05:50 and sunset at 17:51 CST.
How long on average sun shines in September?
In Chiquimulilla, the average sunshine duration in September is 9.7h.
When is the highest UV index?
The months with the highest UV index are January through December, with an average maximum UV index of 6.
When is the lowest UV index?
The months with the lowest UV index are January through December, with an average maximum UV index of 6.
What is the UV index reading in September?
In Chiquimulilla, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
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 - Chiquimulilla, Guatemala
Average temperature in September
Chiquimulilla, Guatemala
  • Average high temperature in September: 27.3°C

The warmest month (with the highest average high temperature) is March (30.6°C).
The month with the lowest average high temperature is October (27.1°C).

  • Average low temperature in September: 19°C

The month with the highest average low temperature is May (20.7°C).
The coldest month (with the lowest average low temperature) is January (17.2°C).

Average pressure in September - Chiquimulilla, Guatemala
Average pressure in September
Chiquimulilla, Guatemala
  • Average pressure in September: 1012.3mbar

The month with the highest atmospheric pressure is January (1014.6mbar).
The months with the lowest atmospheric pressure are May and October (1012.2mbar).

Average wind speed in September - Chiquimulilla, Guatemala
Average wind speed in September
Chiquimulilla, Guatemala
  • Average wind speed in September: 5.6km/h

The windiest month (with the highest average wind speed) is January (9.3km/h).
The calmest month (with the lowest average wind speed) is September (5.6km/h).

Average humidity in September - Chiquimulilla, Guatemala
Average humidity in September
Chiquimulilla, Guatemala
  • Average humidity in September: 84%

The month with the highest relative humidity is September (84%).
The month with the lowest relative humidity is March (61%).

Average rainfall in September - Chiquimulilla, Guatemala
Average rainfall in September
Chiquimulilla, Guatemala
  • Average rainfall in September: 230mm

The wettest month (with the highest rainfall) is June (240mm).
The driest month (with the least rainfall) is January (4mm).

Average rainfall days in September - Chiquimulilla, Guatemala
Average rainfall days in September
Chiquimulilla, Guatemala
  • Average rainfall days in September: 29.4 days

The month with the highest number of rainy days is September (29.4 days).
The month with the least rainy days is January (4.3 days).

Average daylight in September / Average sunshine in September - Chiquimulilla, Guatemala
Average daylight in September /
Average sunshine in September
Chiquimulilla, Guatemala
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is April (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).

Average sunshine days in September - Chiquimulilla, Guatemala
Average sunshine days in September
Chiquimulilla, Guatemala
  • Average sunshine days in September: 0.3 days

The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is September (0.3 days).

Average UV index in September - Chiquimulilla, Guatemala
Average UV index in September
Chiquimulilla, Guatemala
  • Average UV index in September: 6

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

Average cloud cover in September - Chiquimulilla, Guatemala
Average cloud cover in September
Chiquimulilla, Guatemala
  • Average cloud cover in September: 42

The month with the most cloud cover is September (Cloud cover 42).
The months with the least cloud cover are January and December (Cloud cover 11).

Average visibility in September - Chiquimulilla, Guatemala
Average visibility in September
Chiquimulilla, Guatemala
  • Average visibility in September: 9km

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

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