September weather forecast
Concepción, Guatemala

September

Weather in September

September, the first month of the autumn in Concepción, is also an agreeable month, with an average temperature ranging between min 13.6°C (56.5°F) and max 21°C (69.8°F).

Temperature

The onset of September manifests an average high-temperature of a still agreeable 21°C (69.8°F), demonstrating a minor variation from the preceding month. During September, an average low-temperature of 13.6°C (56.5°F) is observed in Concepción.

Humidity

The most humid month is September, with an average relative humidity of 87%.

Rainfall

In Concepción, in September, during 28.8 rainfall days, 283mm (11.14") of precipitation is typically accumulated. In Concepción, during the entire year, the rain falls for 263.6 days and collects up to 2061mm (81.14") of precipitation.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:16. On the last day of September, sunrise is at 05:54 and sunset at 17:54 CST.

Sunshine

In Concepción, the average sunshine in September is 8.7h.

UV index

January through October and December, with an average maximum UV index of 5, are months with the highest UV index in Concepción. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 during September leads to these advisories:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What are September temperatures in Concepción?
The average high-temperature, in September, in Concepción, is 21°C (69.8°F), while the average low-temperature is 13.6°C (56.5°F).
What is the most humid month in Concepción?
With an average relative humidity of 87%, September is the most humid month.
What is the average humidity in September in Concepción?
The average relative humidity in September in Concepción, Guatemala, is 87%.
How much does it rain in Concepción in September?
In Concepción, Guatemala, in September, during 28.8 rainfall days, 283mm (11.14") of precipitation is typically accumulated.
How many hours of daylight does Concepción have in September?
The average day length in September in Concepción is 12h and 13min.
What time are sunrise and sunset in September in Concepción?
On the first day of September in Concepción, sunrise is at 05:52 and sunset at 18:16. On the last day of the month, sunrise is at 05:54 and sunset at 17:54 CST.
How many hours of sunshine does Concepción have in September?
In September, the average sunshine duration in Concepción, Guatemala, is 8.7h.
When is the highest UV index in Concepción?
The months with the highest UV index in Concepción are January through October and December, with an average maximum UV index of 5.
What is the UV index reading in September in Concepción?
In Concepción, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Concepción, Guatemala
  • Average high temperature in September: 21°C

The warmest month (with the highest average high temperature) is April (23.8°C).
The month with the lowest average high temperature is October (20.7°C).

  • Average low temperature in September: 13.6°C

The month with the highest average low temperature is May (14.3°C).
The coldest month (with the lowest average low temperature) is January (10.2°C).

Average pressure in September
Concepción, Guatemala
  • Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is January (1015.3mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).

Average wind speed in September
Concepción, Guatemala
  • Average wind speed in September: 4.4km/h

The windiest month (with the highest average wind speed) is January (6.1km/h).
The calmest month (with the lowest average wind speed) is May (4.1km/h).

Average humidity in September
Concepción, Guatemala
  • Average humidity in September: 87%

The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is March (69%).

Average rainfall in September
Concepción, Guatemala
  • Average rainfall in September: 283mm

The wettest month (with the highest rainfall) is May (372mm).
The driest month (with the least rainfall) is January (14mm).

Average rainfall days in September
Concepción, Guatemala
  • Average rainfall days in September: 28.8 days

The months with the highest number of rainy days are June and October (29.2 days).
The month with the least rainy days is February (10.8 days).

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

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is April (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).

Average sunshine days in September
Concepción, Guatemala
  • Average sunshine days in September: 0.6 days

The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is October (0.5 days).

Average UV index in September
Concepción, Guatemala
  • Average UV index in September: 5

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 5).
The month with the lowest UV index is November (UV index 4).

Average cloud cover in September
Concepción, Guatemala
  • Average cloud cover in September: 50

The month with the most cloud cover is June (Cloud cover 51).
The months with the least cloud cover are January and February (Cloud cover 19).

Average visibility in September
Concepción, Guatemala
  • Average visibility in September: 8km

The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are May, June, August, September and October (8km).

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