January Weather in Santa Ana, Mexico

Last updated: August 27, 2025

In January, the average temperature in Santa Ana, Mexico is a pleasant 18°C (65°F). Expect a minimum of 6°C (43°F) and a maximum of 29°C (84°F), making it a perfect time for outdoor activities. However, don't forget your umbrella, as precipitation averages 17 mm (0.7 in) over just 4 days. With an average humidity of 84%, it's a great opportunity to enjoy the refreshing air while staying prepared!

January Temperature in Santa Ana

In January in Santa Ana, the average temperature is 18°C (65°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as 6°C (43°F). This makes it an ideal time to explore the great outdoors and enjoy a variety of activities in comfortable weather.

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 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 6°C (43°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 17 mm (0.7 in) over a span of 4 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 17 mm (0.7 inches) of precipitation spread over approximately 4 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 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

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 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 Santa Ana

In Santa Ana 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 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 11, which falls under the extreme 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	18°C (65°F)	17 mm (0.7 inches)	84%	extreme
February Weather	19°C (66°F)	10 mm (0.4 inches)	80%	extreme
March Weather	20°C (68°F)	20 mm (0.8 inches)	73%	extreme
April Weather	21°C (70°F)	53 mm (2.1 inches)	67%	extreme
May Weather	21°C (70°F)	216 mm (8.5 inches)	72%	extreme
June Weather	20°C (69°F)	431 mm (17.0 inches)	73%	extreme
July Weather	20°C (69°F)	302 mm (11.9 inches)	76%	extreme
August Weather	20°C (68°F)	448 mm (17.7 inches)	80%	extreme
September Weather	20°C (68°F)	441 mm (17.3 inches)	84%	extreme
October Weather	20°C (68°F)	243 mm (9.6 inches)	89%	extreme
November Weather	19°C (67°F)	22 mm (0.8 inches)	88%	extreme
December Weather	18°C (65°F)	17 mm (0.7 inches)	88%	very high