March Weather in San Diego, Guatemala

Last updated: August 23, 2025

In March, the average temperature in San Diego, Guatemala hovers around 22°C (72°F), offering a pleasant climate for visitors. Temperatures can range from a cool 10°C (51°F) to a warm 34°C (94°F). Expect minimal rainfall, with only 7 mm (0.3 in) over the course of 1 day, and enjoy a comfortable average humidity of 61%. Perfect weather for exploring!

March Temperature in San Diego

In March in San Diego, the average temperature is 22°C (72°F), with maximums reaching up to 34°C (94°F) and minimums dipping as low as 10°C (51°F). This pleasant temperature range makes San Diego an ideal destination for travelers seeking comfortable weather to explore outdoor activities and attractions.

March Weather in San Diego: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in San Diego, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Diego, March typically has an average temperature of 22°C (72°F), with highs reaching up to 34°C (94°F) and lows dropping to around 10°C (51°F).

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

March Precipitation in San Diego

In San Diego in March, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

March Precipitation Trends in San Diego

The chart displays monthly precipitation patterns in San Diego, 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 San Diego, March typically receives around 7 mm (0.3 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 San Diego

In San Diego in March, humidity is 61%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls but slightly oppressive for active exploration.

March Average Humidity in San Diego

This chart illustrates the average monthly humidity levels in San Diego, 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 San Diego is approximately 61%, 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 San Diego

In San Diego 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 San Diego, you can check here.

Maximum UV Index Levels in San Diego for March

The chart shows the monthly maximum UV Index (UVI) for San Diego 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 San Diego typically reaches 14, which falls under the extreme exposure category.

Data source: San Diego 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 San Diego Compares to Other Months

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

This table compares monthly weather conditions in San Diego, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (68°F)	7 mm (0.3 inches)	80%	extreme
February Weather	21°C (70°F)	6 mm (0.2 inches)	72%	extreme
March Weather	22°C (72°F)	7 mm (0.3 inches)	61%	extreme
April Weather	24°C (76°F)	24 mm (0.9 inches)	53%	extreme
May Weather	24°C (76°F)	126 mm (4.9 inches)	51%	extreme
June Weather	23°C (74°F)	184 mm (7.2 inches)	52%	extreme
July Weather	23°C (74°F)	58 mm (2.3 inches)	58%	extreme
August Weather	23°C (74°F)	108 mm (4.3 inches)	63%	extreme
September Weather	23°C (74°F)	125 mm (4.9 inches)	71%	extreme
October Weather	22°C (73°F)	134 mm (5.3 inches)	79%	extreme
November Weather	21°C (70°F)	56 mm (2.2 inches)	79%	very high
December Weather	20°C (68°F)	13 mm (0.5 inches)	74%	very high