January Weather in San Roman, Mexico

Last updated: August 26, 2025

In January, the average temperature in San Roman, Mexico is a pleasant 24°C (75°F), making it an inviting destination. However, temperatures can range from a cool 12°C (54°F) to a sizzling 37°C (99°F). Visitors can expect 38 mm (1.5 in) of precipitation over 9 days, so be prepared for some showers! With an average humidity of 85%, the climate can feel quite tropical. Enjoy your stay!

January Temperature in San Roman

In January, in San Roman, the average temperature is 24°C (75°F), with maximums that can reach 37°C (99°F) and minimums that can drop to as low as 12°C (54°F). This variation makes it an ideal time for travelers to enjoy both warm days and cooler nights.

January Weather in San Roman: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Roman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Roman, January typically has an average temperature of 24°C (75°F), with highs reaching up to 37°C (99°F) and lows dropping to around 12°C (54°F).

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

January Precipitation in San Roman

In San Roman in January, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 9 days.

January Precipitation Trends in San Roman

The chart displays monthly precipitation patterns in San Roman, 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 San Roman, January typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 9 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 San Roman

In San Roman in January humidity is 85%. With an average temperature of 24°C (75°F), this humidity feels like walking through a warm, heavy blanket, making travel feel sluggish and draining as you navigate through the thick, muggy air.

January Average Humidity in San Roman

This chart illustrates the average monthly humidity levels in San Roman, 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 San Roman is approximately 85%, 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 San Roman

In San Roman in January, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Roman.

Maximum UV Index Levels in San Roman for January

The chart shows the monthly maximum UV Index (UVI) for San Roman 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 San Roman typically reaches 9, which falls under the very high exposure category.

Data source: San Roman 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 San Roman Compares to Other Months

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

This table compares monthly weather conditions in San Roman, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	38 mm (1.5 inches)	85%	very high
February Weather	25°C (78°F)	20 mm (0.8 inches)	80%	extreme
March Weather	26°C (80°F)	19 mm (0.8 inches)	69%	extreme
April Weather	28°C (83°F)	30 mm (1.2 inches)	64%	extreme
May Weather	29°C (84°F)	66 mm (2.6 inches)	63%	extreme
June Weather	28°C (82°F)	221 mm (8.7 inches)	62%	extreme
July Weather	28°C (83°F)	81 mm (3.2 inches)	65%	extreme
August Weather	28°C (83°F)	110 mm (4.3 inches)	78%	extreme
September Weather	28°C (82°F)	156 mm (6.1 inches)	85%	extreme
October Weather	27°C (80°F)	164 mm (6.5 inches)	87%	extreme
November Weather	25°C (77°F)	66 mm (2.6 inches)	88%	very high
December Weather	24°C (75°F)	43 mm (1.7 inches)	88%	very high