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March Weather in San Francisco, Mexico

Last updated: August 26, 2025

In March, the average temperature in San Francisco, Mexico is a pleasant 23°C (74°F). Expect minimums around 21°C (70°F) and highs reaching 26°C (78°F). With 0 mm (0.0 in) of precipitation over 0 days, you can look forward to dry conditions. The average humidity hovers at 67%, making it an ideal time to enjoy the outdoors!

March Temperature in San Francisco

In March in San Francisco, the average temperature is 23°C (74°F), with a maximum reaching up to 26°C (78°F) and a minimum dropping as low as 21°C (70°F). This pleasant climate makes it an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates March temperature patterns in San Francisco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Francisco, March typically has an average temperature of 23°C (74°F), with highs reaching up to 26°C (78°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec747474757881848483838177
Data source: Temperature data for San Francisco generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in San Francisco

In San Francisco in March, the precipitation amount is 0 mm (0.0 in) during 0 days.

March Precipitation Trends in San Francisco

The chart displays monthly precipitation patterns in San Francisco, 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 Francisco, March typically receives around 0 mm (0.0 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec2322003671302252661971915
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in San Francisco

In San Francisco in March humidity is 67%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor exploration pleasant yet slightly sticky, perfect for leisurely strolls but requiring occasional breaks for hydration.

March Average Humidity in San Francisco

This chart illustrates the average monthly humidity levels in San Francisco, 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 Francisco is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%69%67%66%69%78%79%78%78%75%74%74%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in San Francisco

In San Francisco in March, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Francisco.

Maximum UV Index Levels in San Francisco for March

The chart shows the monthly maximum UV Index (UVI) for San Francisco 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 Francisco typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131213121197
Data source: San Francisco 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 Francisco Compares to Other Months

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

This table compares monthly weather conditions in San Francisco, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)23 mm (0.9 inches)71%very high
February Weather23°C (74°F)22 mm (0.9 inches)69%very high
March Weather23°C (74°F)0 mm (0.0 inches)67%extreme
April Weather24°C (76°F)0 mm (0.0 inches)66%extreme
May Weather25°C (78°F)3 mm (0.1 inches)69%extreme
June Weather27°C (81°F)67 mm (2.6 inches)78%extreme
July Weather29°C (84°F)130 mm (5.1 inches)79%extreme
August Weather29°C (84°F)225 mm (8.9 inches)78%extreme
September Weather28°C (83°F)266 mm (10.5 inches)78%extreme
October Weather28°C (83°F)197 mm (7.7 inches)75%extreme
November Weather27°C (81°F)19 mm (0.8 inches)74%very high
December Weather25°C (77°F)15 mm (0.6 inches)74%high

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