September Weather in Chiantla, Guatemala

Last updated: August 23, 2025

In September, the average temperature in Chiantla, Guatemala is a comfortable 17°C (62°F), with potential lows of 9°C (48°F) and highs reaching up to 26°C (78°F). Expect about 223 mm (8.8 in) of precipitation spread over 25 days, accompanied by a high average humidity of 82%, creating a refreshing ambiance perfect for exploration!

September Temperature in Chiantla

In September in Chiantla, the average temperature is 17°C (62°F). Maximums can reach 26°C (78°F), while minimums can drop as low as 9°C (48°F). Overall, it's a pleasant time to explore Chiantla, so be sure to pack a mix of clothing for varying temperatures during your travels.

September Weather in Chiantla: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Chiantla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chiantla, September typically has an average temperature of 17°C (62°F), with highs reaching up to 26°C (78°F) and lows dropping to around 9°C (48°F).

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

September Precipitation in Chiantla

In Chiantla in September, the precipitation amount is 223 mm (8.8 in) over the course of 25 days.

September Precipitation Trends in Chiantla

The chart displays monthly precipitation patterns in Chiantla, 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 Chiantla, September typically receives around 223 mm (8.8 inches) of precipitation spread over approximately 25 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Chiantla

In Chiantla in September, humidity is 82%. With an average temperature of 17°C (62°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and the air thicker, which can be quite exhausting for traveling.

September Average Humidity in Chiantla

This chart illustrates the average monthly humidity levels in Chiantla, 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 Chiantla 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 Chiantla

In Chiantla 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 Chiantla, you can check here.

Maximum UV Index Levels in Chiantla for September

The chart shows the monthly maximum UV Index (UVI) for Chiantla 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 Chiantla typically reaches 14, which falls under the extreme exposure category.

Data source: Chiantla 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 Chiantla Compares to Other Months

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

This table compares monthly weather conditions in Chiantla, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	12 mm (0.5 inches)	76%	extreme
February Weather	16°C (60°F)	7 mm (0.3 inches)	68%	extreme
March Weather	16°C (62°F)	9 mm (0.4 inches)	59%	extreme
April Weather	18°C (64°F)	41 mm (1.6 inches)	57%	extreme
May Weather	18°C (64°F)	168 mm (6.6 inches)	65%	extreme
June Weather	17°C (63°F)	284 mm (11.2 inches)	66%	extreme
July Weather	16°C (62°F)	95 mm (3.8 inches)	75%	extreme
August Weather	17°C (62°F)	171 mm (6.7 inches)	82%	extreme
September Weather	17°C (62°F)	223 mm (8.8 inches)	82%	extreme
October Weather	16°C (62°F)	201 mm (7.9 inches)	83%	extreme
November Weather	15°C (60°F)	49 mm (1.9 inches)	80%	extreme
December Weather	14°C (58°F)	14 mm (0.5 inches)	76%	very high