January Weather in Santa Ana, Mexico

Last updated: August 27, 2025

In January, the average temperature in Santa Ana, Mexico hovers around 21°C (70°F), with a minimum of 12°C (55°F) and a maximum reaching up to 29°C (85°F). You can expect about 56 mm (2.2 in) of rain over approximately 10 days, coupled with a high average humidity of 88%.

January Temperature in Santa Ana

In January in Santa Ana, the average temperature is 21°C (70°F). Maximums can reach 29°C (85°F), while minimums can drop as low as 12°C (55°F). This pleasant climate makes it an ideal time for travelers to explore the attractions and enjoy outdoor activities.

January Weather in Santa Ana: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Santa Ana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Ana, January typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (85°F) and lows dropping to around 12°C (55°F).

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

January Precipitation in Santa Ana

In Santa Ana in January, the precipitation amount is 56 mm (2.2 in) over the course of 10 days.

January Precipitation Trends in Santa Ana

The chart displays monthly precipitation patterns in Santa Ana, 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 Santa Ana, January typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 10 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 Santa Ana

In Santa Ana in January, humidity is 88%. With an average temperature of 21°C (70°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and slightly stifling, which can be quite challenging for travelers.

January Average Humidity in Santa Ana

This chart illustrates the average monthly humidity levels in Santa Ana, 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 Santa Ana is approximately 88%, 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 Santa Ana

In Santa Ana in January, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Santa Ana.

Maximum UV Index Levels in Santa Ana for January

The chart shows the monthly maximum UV Index (UVI) for Santa Ana 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 Santa Ana typically reaches 8, which falls under the very high exposure category.

Data source: Santa Ana 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 Santa Ana Compares to Other Months

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

This table compares monthly weather conditions in Santa Ana, 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 (70°F)	56 mm (2.2 inches)	88%	very high
February Weather	22°C (71°F)	51 mm (2.0 inches)	86%	very high
March Weather	23°C (74°F)	57 mm (2.3 inches)	84%	extreme
April Weather	25°C (77°F)	35 mm (1.4 inches)	81%	extreme
May Weather	27°C (81°F)	74 mm (2.9 inches)	82%	extreme
June Weather	27°C (81°F)	138 mm (5.4 inches)	81%	extreme
July Weather	27°C (81°F)	97 mm (3.8 inches)	81%	extreme
August Weather	28°C (82°F)	144 mm (5.7 inches)	82%	extreme
September Weather	27°C (81°F)	168 mm (6.6 inches)	86%	extreme
October Weather	26°C (79°F)	119 mm (4.7 inches)	90%	extreme
November Weather	23°C (74°F)	97 mm (3.8 inches)	91%	very high
December Weather	22°C (72°F)	34 mm (1.4 inches)	91%	high