September Weather in San Agustin Acasaguastlan, Guatemala

Last updated: August 23, 2025

In September, the average temperature in San Agustin Acasaguastlan, Guatemala is a pleasant 21°C (70°F), with a minimum of 15°C (59°F) and a maximum reaching 29°C (85°F). However, be prepared for rainfall, as the region receives an impressive 219 mm (8.6 in) of precipitation over 27 days. With an average humidity of 82%, it's a time to embrace the moisture and enjoy the lush surroundings!

September Temperature in San Agustin Acasaguastlan

In September in San Agustin Acasaguastlan, the average temperature is 21°C (70°F). Maximums can reach 29°C (85°F), while minimums can drop to as low as 15°C (59°F). This pleasant climate makes it an ideal time for travelers to explore outdoor activities and enjoy the local attractions.

September Weather in San Agustin Acasaguastlan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Agustin Acasaguastlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Agustin Acasaguastlan, September typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (85°F) and lows dropping to around 15°C (59°F).

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

September Precipitation in San Agustin Acasaguastlan

In San Agustin Acasaguastlan in September, the precipitation amount is 219 mm (8.6 in) over the course of 27 days.

September Precipitation Trends in San Agustin Acasaguastlan

The chart displays monthly precipitation patterns in San Agustin Acasaguastlan, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In San Agustin Acasaguastlan, September typically receives around 219 mm (8.6 inches) of precipitation spread over approximately 27 days.

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

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Millimeters (mm) Inches (in)

September Humidity in San Agustin Acasaguastlan

In San Agustin Acasaguastlan in September, humidity is 82%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort for travelers, making outdoor activities less enjoyable and requiring frequent breaks for hydration.

September Average Humidity in San Agustin Acasaguastlan

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

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

September UV Index in San Agustin Acasaguastlan

In San Agustin Acasaguastlan in September, 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 San Agustin Acasaguastlan, you can check here.

Maximum UV Index Levels in San Agustin Acasaguastlan for September

The chart shows the monthly maximum UV Index (UVI) for San Agustin Acasaguastlan in September, 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 September, the maximum UV index in San Agustin Acasaguastlan typically reaches 14, which falls under the extreme exposure category.

Data source: San Agustin Acasaguastlan September 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 September Weather in San Agustin Acasaguastlan Compares to Other Months

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

This table compares monthly weather conditions in San Agustin Acasaguastlan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (64°F)	22 mm (0.9 inches)	76%	extreme
February Weather	19°C (66°F)	15 mm (0.6 inches)	68%	extreme
March Weather	20°C (68°F)	18 mm (0.7 inches)	59%	extreme
April Weather	22°C (72°F)	65 mm (2.6 inches)	57%	extreme
May Weather	22°C (72°F)	196 mm (7.7 inches)	65%	extreme
June Weather	21°C (71°F)	285 mm (11.2 inches)	66%	extreme
July Weather	21°C (70°F)	129 mm (5.1 inches)	75%	extreme
August Weather	21°C (70°F)	188 mm (7.4 inches)	82%	extreme
September Weather	21°C (70°F)	219 mm (8.6 inches)	82%	extreme
October Weather	21°C (69°F)	219 mm (8.6 inches)	83%	extreme
November Weather	19°C (66°F)	90 mm (3.6 inches)	80%	very high
December Weather	18°C (64°F)	33 mm (1.3 inches)	76%	very high