August Weather in Casillas, Guatemala

Last updated: August 23, 2025

In August, the average temperature in Casillas, Guatemala hovers around 20°C (68°F), with a minimum dipping to 13°C (55°F) and a maximum reaching up to 29°C (84°F). Expect 258 mm (10.2 in) of precipitation spread over 25 days, contributing to an average humidity of 82%. Perfect for those who appreciate a lush, vibrant ambiance!

August Temperature in Casillas

In August in Casillas, the average temperature is 20°C (68°F). The maximum can reach 29°C (84°F), and the minimum can be as low as 13°C (55°F). This mild climate makes it an excellent destination for outdoor activities and sightseeing.

August Weather in Casillas: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Casillas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casillas, August typically has an average temperature of 20°C (68°F), with highs reaching up to 29°C (84°F) and lows dropping to around 13°C (55°F).

Data source: Temperature data for Casillas generated using information from the Copernicus Climate Change Service.

August Precipitation in Casillas

In Casillas in August, the total precipitation amount is 258 mm (10.2 in) spread over 25 days.

August Precipitation Trends in Casillas

The chart displays monthly precipitation patterns in Casillas, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Casillas, August typically receives around 258 mm (10.2 inches) of precipitation spread over approximately 25 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Casillas

In Casillas in August humidity is 82%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit sluggish but surprisingly refreshing, as long as you take breaks in shaded areas to cool off.

August Average Humidity in Casillas

This chart illustrates the average monthly humidity levels in Casillas, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Casillas is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Casillas

In Casillas in August, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Casillas, you can check here.

Maximum UV Index Levels in Casillas for August

The chart shows the monthly maximum UV Index (UVI) for Casillas in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Casillas typically reaches 14, which falls under the extreme exposure category.

Data source: Casillas August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Casillas Compares to Other Months

Weather in Casillas varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Casillas, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Casillas, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (64°F)	8 mm (0.3 inches)	76%	extreme
February Weather	19°C (66°F)	9 mm (0.4 inches)	68%	extreme
March Weather	20°C (68°F)	7 mm (0.3 inches)	59%	extreme
April Weather	21°C (70°F)	62 mm (2.5 inches)	57%	extreme
May Weather	21°C (69°F)	257 mm (10.1 inches)	65%	extreme
June Weather	20°C (68°F)	378 mm (14.9 inches)	66%	extreme
July Weather	20°C (68°F)	170 mm (6.7 inches)	75%	extreme
August Weather	20°C (68°F)	258 mm (10.2 inches)	82%	extreme
September Weather	20°C (68°F)	314 mm (12.4 inches)	82%	extreme
October Weather	19°C (67°F)	287 mm (11.3 inches)	83%	extreme
November Weather	19°C (66°F)	52 mm (2.0 inches)	80%	very high
December Weather	18°C (65°F)	17 mm (0.7 inches)	76%	very high