January Weather in Santo Tomas de Arriba, Mexico

Last updated: August 27, 2025

In January, the average temperature in Santo Tomas de Arriba, Mexico hovers around 18°C (64°F), with a minimum of 5°C (41°F) and a maximum that can soar up to 33°C (91°F). Expect minimal precipitation, with an average of just 3 mm (0.1 in) over 0 days of rain. The air feels quite humid, with an average humidity level of 84%, making for a warm and inviting atmosphere.

January Temperature in Santo Tomas de Arriba

In January in Santo Tomas de Arriba, the average temperature is 18°C (64°F). The maximum can reach 33°C (91°F) and the minimum can be as low as 5°C (41°F). This delightful range makes it a perfect time for travelers to enjoy outdoor activities while also being prepared for cooler evenings.

January Weather in Santo Tomas de Arriba: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Santo Tomas de Arriba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Tomas de Arriba, January typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 5°C (41°F).

Data source: Temperature data for Santo Tomas de Arriba generated using information from the Copernicus Climate Change Service.

January Precipitation in Santo Tomas de Arriba

In Santo Tomas de Arriba in January, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.

January Precipitation Trends in Santo Tomas de Arriba

The chart displays monthly precipitation patterns in Santo Tomas de Arriba, 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 Santo Tomas de Arriba, January typically receives around 3 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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January Humidity in Santo Tomas de Arriba

In Santo Tomas de Arriba in January humidity is 84%. With an average temperature of 18°C (64°F), this humidity feels like there's a heavy blanket wrapping around you, making travel feel a bit sticky and muggy, potentially leading to fatigue if you're not prepared.

January Average Humidity in Santo Tomas de Arriba

This chart illustrates the average monthly humidity levels in Santo Tomas de Arriba, 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 Santo Tomas de Arriba 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 Santo Tomas de Arriba

In Santo Tomas de Arriba 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 Santo Tomas de Arriba.

Maximum UV Index Levels in Santo Tomas de Arriba for January

The chart shows the monthly maximum UV Index (UVI) for Santo Tomas de Arriba 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 Santo Tomas de Arriba typically reaches 10, which falls under the very high exposure category.

Data source: Santo Tomas de Arriba 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 Santo Tomas de Arriba Compares to Other Months

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

This table compares monthly weather conditions in Santo Tomas de Arriba, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (64°F)	3 mm (0.1 inches)	84%	very high
February Weather	19°C (67°F)	3 mm (0.1 inches)	80%	extreme
March Weather	21°C (69°F)	4 mm (0.2 inches)	73%	extreme
April Weather	22°C (73°F)	19 mm (0.8 inches)	67%	extreme
May Weather	23°C (74°F)	61 mm (2.4 inches)	72%	extreme
June Weather	21°C (70°F)	225 mm (8.9 inches)	73%	extreme
July Weather	21°C (70°F)	106 mm (4.2 inches)	76%	extreme
August Weather	21°C (69°F)	176 mm (6.9 inches)	80%	extreme
September Weather	21°C (69°F)	207 mm (8.2 inches)	84%	extreme
October Weather	20°C (68°F)	140 mm (5.5 inches)	89%	extreme
November Weather	18°C (66°F)	15 mm (0.6 inches)	88%	extreme
December Weather	18°C (64°F)	4 mm (0.2 inches)	88%	very high