March Weather in Santa Barbara, Mexico

Last updated: August 27, 2025

In March, the average temperature in Santa Barbara, Mexico is a pleasant 21°C (70°F). Expect minimum temperatures dipping to 6°C (43°F) and rising to a warm 34°C (94°F). While you're enjoying the sunshine, keep in mind that the region sees an average precipitation of 4 mm (0.2 in) over just 1 day, with an average humidity level of 58%.

March Temperature in Santa Barbara

In March in Santa Barbara, the average temperature is 21°C (70°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 6°C (43°F). This varied climate makes it an ideal destination for travelers looking to experience a mix of warm days and cooler evenings.

March Weather in Santa Barbara: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Santa Barbara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Barbara, March typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (43°F).

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

March Precipitation in Santa Barbara

In Santa Barbara in March, the precipitation amount is 4 mm (0.2 in) during 1 day.

March Precipitation Trends in Santa Barbara

The chart displays monthly precipitation patterns in Santa Barbara, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Santa Barbara, March typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 1 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

March Humidity in Santa Barbara

In Santa Barbara in March, humidity is 58%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, creating a tropical atmosphere that's perfect for leisurely strolls but may require frequent breaks to stay hydrated during your travels.

March Average Humidity in Santa Barbara

This chart illustrates the average monthly humidity levels in Santa Barbara, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Santa Barbara is approximately 58%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Santa Barbara

In Santa Barbara in March, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Santa Barbara, you can check here.

Maximum UV Index Levels in Santa Barbara for March

The chart shows the monthly maximum UV Index (UVI) for Santa Barbara in March, 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 March, the maximum UV index in Santa Barbara typically reaches 14, which falls under the extreme exposure category.

Data source: Santa Barbara March 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 March Weather in Santa Barbara Compares to Other Months

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

This table compares monthly weather conditions in Santa Barbara, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (60°F)	9 mm (0.3 inches)	74%	very high
February Weather	18°C (64°F)	9 mm (0.3 inches)	65%	extreme
March Weather	21°C (70°F)	4 mm (0.2 inches)	58%	extreme
April Weather	23°C (73°F)	2 mm (0.1 inches)	58%	extreme
May Weather	24°C (76°F)	23 mm (0.9 inches)	67%	extreme
June Weather	23°C (74°F)	137 mm (5.4 inches)	76%	extreme
July Weather	21°C (70°F)	169 mm (6.6 inches)	67%	extreme
August Weather	21°C (70°F)	131 mm (5.1 inches)	68%	extreme
September Weather	20°C (69°F)	129 mm (5.1 inches)	81%	extreme
October Weather	20°C (68°F)	48 mm (1.9 inches)	83%	extreme
November Weather	18°C (64°F)	14 mm (0.6 inches)	84%	very high
December Weather	15°C (60°F)	5 mm (0.2 inches)	81%	very high