September weather forecast
Chimaltenango, Guatemala

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Weather in September

In September, Chimaltenango, Guatemala, sees the last of the significant rainfall for the year with precipitation levels climbing further to 269mm (10.59"), the highest for the year. The aroma of the city gets enriched as it absorbs the last of the heavy showers before the dry season sets in. The average high temperature remains moderate, providing balance amidst the rainfall and humidity. From the climate standpoint, the dynamic pattern is notable, with the month rounding off the wet season. Despite the rainfall level retreating from the peak, the city's vibrant character remains untouched, attesting to its resilience and adaptability.

Temperature

Chimaltenango, Guatemala, marks the start of September with an average high-temperature of a still moderately hot 23.4°C (74.1°F), hinting at a slight fluctuation from August's 24.2°C (75.6°F). Throughout the month of September, Chimaltenango reports a steady low-temperature average of 15°C (59°F).

Humidity

The most humid month is September, with an average relative humidity of 90%.

Rainfall

In Chimaltenango, in September, during 28.7 rainfall days, 269mm (10.59") of precipitation is typically accumulated. In Chimaltenango, during the entire year, the rain falls for 231.3 days and collects up to 1656mm (65.2") of precipitation.

Daylight

In Chimaltenango, the average length of the day in September is 12h and 13min.
On the first day of September in Chimaltenango, sunrise is at 05:51 and sunset at 18:14. On the last day of the month, sunrise is at 05:52 and sunset at 17:53 CST.

Sunshine

The average sunshine in September is 7.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 during September translates into the following guidance:
Undertake precautions - Guarding against sun damage is counselled. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are September temperatures in Chimaltenango?

During September, Chimaltenango experiences an average high-temperature of 23.4°C (74.1°F) and a low-temperature of 15°C (59°F). In April, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 29°C (84.2°F).

What is the most humid month in Chimaltenango?

With an average relative humidity of 90%, September is the most humid month in Chimaltenango.

What is the average humidity in September in Chimaltenango?

In September, the average relative humidity in Chimaltenango, Guatemala, is 90%.

How much does it rain in Chimaltenango in September?

In September, in Chimaltenango, Guatemala, the rain falls for 28.7 days. Throughout September, 269mm (10.59") of precipitation is accumulated.

How many hours of daylight does Chimaltenango have in September?

In Chimaltenango, the average day length in September is 12h and 13min.

What time are sunrise and sunset in September in Chimaltenango?

In September, on the first day of the month, sunrise is at 05:51 and sunset at 18:14. On the last day of the month, in Chimaltenango, sunrise is at 05:52 and sunset at 17:53 CST.

How long on average sun shines in September in Chimaltenango?

In September, the average sunshine duration in Chimaltenango is 7.7h.

What is the UV index reading in September in Chimaltenango?

In Chimaltenango, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Chimaltenango, Guatemala

Average temperature in September - Chimaltenango, Guatemala
  • Average high temperature in September: 23.4°C

The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is October (22.5°C).

  • Average low temperature in September: 15°C

The month with the highest average low temperature is May (16.5°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).

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Average pressure in September
Chimaltenango, Guatemala

Average pressure in September - Chimaltenango, Guatemala
  • Average pressure in September: 1012.6mbar

The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is May (1012.5mbar).

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Average wind speed in September
Chimaltenango, Guatemala

Average wind speed in September - Chimaltenango, Guatemala
  • Average wind speed in September: 5.9km/h

The windiest month (with the highest average wind speed) is January (12.8km/h).
The calmest month (with the lowest average wind speed) is September (5.9km/h).

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Average humidity in September
Chimaltenango, Guatemala

Average humidity in September - Chimaltenango, Guatemala
  • Average humidity in September: 90%

The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is March (69%).

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Average rainfall in September
Chimaltenango, Guatemala

Average rainfall in September - Chimaltenango, Guatemala
  • Average rainfall in September: 269mm

The wettest month (with the highest rainfall) is May (285mm).
The driest month (with the least rainfall) is January (7mm).

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Average rainfall days in September
Chimaltenango, Guatemala

Average rainfall days in September - Chimaltenango, Guatemala
  • Average rainfall days in September: 28.7 days

The month with the highest number of rainy days is September (28.7 days).
The month with the least rainy days is January (6.7 days).

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Average daylight in September /
Average sunshine in September
Chimaltenango, Guatemala

Average daylight in September / Average sunshine in September - Chimaltenango, 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: 7h and 4min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 24min).

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Average sunshine days in September
Chimaltenango, Guatemala

Average sunshine days in September - Chimaltenango, Guatemala
  • Average sunshine days in September: 0.9 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is September (0.9 days).

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Average UV index in September
Chimaltenango, Guatemala

Average UV index in September - Chimaltenango, Guatemala
  • Average UV index in September: 5

The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are August and October (UV index 4).

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Average cloud cover in September
Chimaltenango, Guatemala

Average cloud cover in September - Chimaltenango, Guatemala
  • Average cloud cover in September: 59

The months with the most cloud cover are June and September (Cloud cover 59).
The months with the least cloud cover are January, February and March (Cloud cover 26).

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Average visibility in September
Chimaltenango, Guatemala

Average visibility in September - Chimaltenango, Guatemala
  • Average visibility in September: 6km

The month with the highest visibility is March (10km).
The month with the lowest visibility is September (6km).

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Chimaltenango, Guatemala

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