March Weather in Riverside, United States

Last updated: June 24, 2025

In March, the average temperature in Riverside, United States hovers around 18°C (64°F). Expect a minimum chill of -3°C (27°F) and a warm peak of 31°C (88°F). With 80 mm (3.2 in) of precipitation over about 11 days, be prepared for occasional showers. The average humidity is 78%, adding a touch of mugginess to the air.

March Temperature in Riverside

In March in Riverside, the average temperature is 18°C (64°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -3°C (27°F). It's essential to pack accordingly for a wide range of weather conditions while traveling in this month.

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

The chart illustrates March temperature patterns in Riverside, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riverside, March typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around -3°C (27°F).

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

March Precipitation in Riverside

In Riverside in March, the precipitation amount is 80 mm (3.2 in) spread over 11 days.

March Precipitation Trends in Riverside

The chart displays monthly precipitation patterns in Riverside, 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 Riverside, March typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 11 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 Riverside

In Riverside in March, humidity is 78%. With an average temperature of 18°C (64°F), this humidity feels like a warm, thick blanket wrapping around you, making traveling feel a bit sticky and sluggish, yet the coolness of the air tempers the intensity, inviting you to explore at a leisurely pace.

March Average Humidity in Riverside

This chart illustrates the average monthly humidity levels in Riverside, 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 Riverside is approximately 78%, 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 Riverside

In Riverside 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 Riverside.

Maximum UV Index Levels in Riverside for March

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

Data source: Riverside 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 Riverside Compares to Other Months

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

This table compares monthly weather conditions in Riverside, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	89 mm (3.5 inches)	79%	moderate
February Weather	13°C (55°F)	105 mm (4.1 inches)	80%	very high
March Weather	18°C (64°F)	80 mm (3.2 inches)	78%	very high
April Weather	20°C (68°F)	111 mm (4.4 inches)	79%	very high
May Weather	24°C (76°F)	191 mm (7.5 inches)	81%	extreme
June Weather	28°C (82°F)	130 mm (5.1 inches)	77%	extreme
July Weather	29°C (84°F)	82 mm (3.2 inches)	71%	extreme
August Weather	29°C (85°F)	142 mm (5.6 inches)	67%	extreme
September Weather	27°C (80°F)	121 mm (4.8 inches)	69%	very high
October Weather	22°C (71°F)	111 mm (4.4 inches)	73%	very high
November Weather	16°C (60°F)	82 mm (3.2 inches)	82%	high
December Weather	13°C (56°F)	116 mm (4.6 inches)	87%	moderate