March Weather in Santa Clara, United States

Last updated: June 24, 2025

In Santa Clara, United States, the average temperature in March hovers around 19°C (66°F). This month can witness dramatic fluctuations, with minimums dipping to -2°C (28°F) and maximums soaring to 33°C (92°F). Expect 53 mm (2.1 in) of precipitation spread over 9 days, contributing to an average humidity of 74%.

March Temperature in Santa Clara

In March in Santa Clara, the average temperature is 19°C (66°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip as low as -2°C (28°F). Be prepared for a wide range of weather conditions during your travels!

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

The chart illustrates March temperature patterns in Santa Clara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Clara, March typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around -2°C (28°F).

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

March Precipitation in Santa Clara

In Santa Clara in March, the total precipitation amount is 53 mm (2.1 in) spread over 9 days.

March Precipitation Trends in Santa Clara

The chart displays monthly precipitation patterns in Santa Clara, 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 Clara, March typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 9 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 Clara

In Santa Clara in March humidity is 74%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it ideal for leisurely outdoor exploration but potentially heavy for those not accustomed to tropical conditions.

March Average Humidity in Santa Clara

This chart illustrates the average monthly humidity levels in Santa Clara, 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 Clara is approximately 74%, 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 Clara

In Santa Clara in March, 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 Santa Clara.

Maximum UV Index Levels in Santa Clara for March

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

Data source: Santa Clara 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 Clara Compares to Other Months

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

This table compares monthly weather conditions in Santa Clara, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	43 mm (1.7 inches)	79%	moderate
February Weather	13°C (56°F)	51 mm (2.0 inches)	79%	very high
March Weather	19°C (66°F)	53 mm (2.1 inches)	74%	very high
April Weather	21°C (71°F)	84 mm (3.3 inches)	76%	extreme
May Weather	26°C (78°F)	116 mm (4.6 inches)	81%	extreme
June Weather	28°C (83°F)	84 mm (3.3 inches)	76%	extreme
July Weather	30°C (86°F)	70 mm (2.8 inches)	66%	extreme
August Weather	30°C (87°F)	82 mm (3.2 inches)	58%	extreme
September Weather	27°C (81°F)	111 mm (4.4 inches)	65%	extreme
October Weather	22°C (72°F)	78 mm (3.1 inches)	74%	very high
November Weather	17°C (62°F)	51 mm (2.0 inches)	81%	high
December Weather	14°C (57°F)	59 mm (2.3 inches)	86%	moderate