March Weather in Brea, United States

Last updated: June 24, 2025

In March, the average temperature in Brea, United States is a mild 14°C (58°F). Visitors can expect a comfortable range, with minimum temperatures dipping to 3°C (38°F) and reaching maximums of 30°C (86°F). Rainfall is moderate, with around 67 mm (2.7 in) of precipitation over approximately 8 days. Moreover, the air is relatively humid, boasting an average humidity of 75%, making it a perfect season for enjoying the local sights.

March Temperature in Brea

In March in Brea, the average temperature is 14°C (58°F). Maximum temperatures can reach 30°C (86°F), while the minimum can drop to as low as 3°C (38°F). This makes Brea a favorable destination for travelers seeking mild weather along with a mix of warm and cooler days.

March Weather in Brea: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Brea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brea, March typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (86°F) and lows dropping to around 3°C (38°F).

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

March Precipitation in Brea

In Brea in March, the precipitation amount is 67 mm (2.7 in) during a total of 8 days.

March Precipitation Trends in Brea

The chart displays monthly precipitation patterns in Brea, 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 Brea, March typically receives around 67 mm (2.7 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Brea

In Brea in March humidity is 75%. With an average temperature of 14°C (58°F), this humidity feels like a lingering blanket of warmth, making travel both refreshing and a bit stifling, as the moisture in the air may leave you feeling slightly sticky while enjoying outdoor adventures.

March Average Humidity in Brea

This chart illustrates the average monthly humidity levels in Brea, 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 Brea is approximately 75%, 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 Brea

In Brea in March, 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 Brea.

Maximum UV Index Levels in Brea for March

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

Data source: Brea 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 Brea Compares to Other Months

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

This table compares monthly weather conditions in Brea, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	75 mm (3.0 inches)	74%	moderate
February Weather	13°C (56°F)	63 mm (2.5 inches)	79%	high
March Weather	14°C (58°F)	67 mm (2.7 inches)	75%	very high
April Weather	17°C (63°F)	23 mm (0.9 inches)	70%	very high
May Weather	18°C (65°F)	16 mm (0.6 inches)	70%	very high
June Weather	21°C (70°F)	3 mm (0.1 inches)	72%	extreme
July Weather	24°C (76°F)	2 mm (0.1 inches)	73%	extreme
August Weather	25°C (76°F)	2 mm (0.1 inches)	69%	very high
September Weather	23°C (74°F)	4 mm (0.1 inches)	68%	very high
October Weather	20°C (69°F)	10 mm (0.4 inches)	67%	high
November Weather	17°C (62°F)	20 mm (0.8 inches)	68%	moderate
December Weather	13°C (56°F)	72 mm (2.8 inches)	71%	moderate