January Weather in Casahuatlan, Mexico

Last updated: August 27, 2025

The average temperature in Casahuatlan, Mexico during January is a comfortable 21°C (69°F). Expect lows around 8°C (48°F) and highs reaching up to 32°C (90°F). Rainfall is minimal, with only 2 mm (0.1 in) of precipitation expected over 0 days. You'll also notice a high average humidity of 84%, contributing to the region's lush atmosphere.

January Temperature in Casahuatlan

In January in Casahuatlan, the average temperature is 21°C (69°F). Maximum can reach 32°C (90°F), and minimum can be as low as 8°C (48°F). This makes it a great time to visit for those who enjoy mild to warm weather with some cool evenings.

January Weather in Casahuatlan: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Casahuatlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casahuatlan, January typically has an average temperature of 21°C (69°F), with highs reaching up to 32°C (90°F) and lows dropping to around 8°C (48°F).

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

January Precipitation in Casahuatlan

In Casahuatlan in January, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

January Precipitation Trends in Casahuatlan

The chart displays monthly precipitation patterns in Casahuatlan, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Casahuatlan, January typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Casahuatlan

In Casahuatlan in January, humidity is 84%. With an average temperature of 21°C (69°F), this humidity feels like a thick blanket enveloping you, making even the simplest outdoor activities feel exhausting and sticky, which can be quite challenging for traveling.

January Average Humidity in Casahuatlan

This chart illustrates the average monthly humidity levels in Casahuatlan, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Casahuatlan is approximately 84%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Casahuatlan

In Casahuatlan in January, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Casahuatlan.

Maximum UV Index Levels in Casahuatlan for January

The chart shows the monthly maximum UV Index (UVI) for Casahuatlan in January, 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 January, the maximum UV index in Casahuatlan typically reaches 10, which falls under the very high exposure category.

Data source: Casahuatlan January 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 January Weather in Casahuatlan Compares to Other Months

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

This table compares monthly weather conditions in Casahuatlan, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (69°F)	2 mm (0.1 inches)	84%	very high
February Weather	23°C (73°F)	4 mm (0.2 inches)	78%	extreme
March Weather	25°C (77°F)	5 mm (0.2 inches)	75%	extreme
April Weather	26°C (80°F)	12 mm (0.5 inches)	70%	extreme
May Weather	26°C (80°F)	88 mm (3.5 inches)	77%	extreme
June Weather	23°C (74°F)	309 mm (12.2 inches)	76%	extreme
July Weather	23°C (74°F)	257 mm (10.1 inches)	68%	extreme
August Weather	23°C (73°F)	338 mm (13.3 inches)	70%	extreme
September Weather	22°C (73°F)	314 mm (12.4 inches)	82%	extreme
October Weather	23°C (73°F)	164 mm (6.5 inches)	91%	extreme
November Weather	21°C (71°F)	40 mm (1.6 inches)	89%	very high
December Weather	20°C (69°F)	3 mm (0.1 inches)	88%	very high