January Weather in Guastatoya, Guatemala

Last updated: August 23, 2025

In Guastatoya, Guatemala, the average temperature in January is a pleasant 19°C (66°F). Expect minimums dipping to 8°C (47°F) and a warm maximum of 32°C (89°F). Precipitation is light, with an average of only 9 mm (0.3 in) over 2 days, and the air carries a humidity level of 76%.

January Temperature in Guastatoya

In January in Guastatoya, the average temperature is 19°C (66°F), with maximums reaching 32°C (89°F) and minimums dropping as low as 8°C (47°F). This weather offers a pleasantly warm climate, making it an ideal destination for travelers seeking a comfortable escape.

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

The chart illustrates January temperature patterns in Guastatoya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guastatoya, January typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (89°F) and lows dropping to around 8°C (47°F).

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

January Precipitation in Guastatoya

In Guastatoya in January, the precipitation amount is 9 mm (0.3 in) over a period of 2 days.

January Precipitation Trends in Guastatoya

The chart displays monthly precipitation patterns in Guastatoya, 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 Guastatoya, January typically receives around 9 mm (0.3 inches) of precipitation spread over approximately 2 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 Guastatoya

In Guastatoya in January, humidity is 76%. With an average temperature of 19°C (66°F), this humidity feels like a warm, thick blanket wrapping around you, making travel mildly uncomfortable and encouraging frequent breaks in shaded or air-conditioned areas.

January Average Humidity in Guastatoya

This chart illustrates the average monthly humidity levels in Guastatoya, 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 Guastatoya is approximately 76%, 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 Guastatoya

In Guastatoya in January, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Guastatoya.

Maximum UV Index Levels in Guastatoya for January

The chart shows the monthly maximum UV Index (UVI) for Guastatoya 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 Guastatoya typically reaches 11, which falls under the extreme exposure category.

Data source: Guastatoya 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 Guastatoya Compares to Other Months

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

This table compares monthly weather conditions in Guastatoya, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (66°F)	9 mm (0.3 inches)	76%	extreme
February Weather	20°C (68°F)	5 mm (0.2 inches)	68%	extreme
March Weather	21°C (69°F)	7 mm (0.3 inches)	59%	extreme
April Weather	23°C (73°F)	42 mm (1.7 inches)	57%	extreme
May Weather	23°C (73°F)	150 mm (5.9 inches)	65%	extreme
June Weather	22°C (71°F)	238 mm (9.4 inches)	66%	extreme
July Weather	21°C (71°F)	93 mm (3.7 inches)	75%	extreme
August Weather	22°C (71°F)	153 mm (6.0 inches)	82%	extreme
September Weather	21°C (71°F)	187 mm (7.3 inches)	82%	extreme
October Weather	21°C (70°F)	177 mm (7.0 inches)	83%	extreme
November Weather	20°C (67°F)	47 mm (1.8 inches)	80%	very high
December Weather	19°C (66°F)	14 mm (0.5 inches)	76%	very high