nomadseason

April Weather in San Francisco, Mexico

Last updated: August 26, 2025

In April, the average temperature in San Francisco, Mexico is a pleasant 24°C (76°F), with a minimum of 21°C (69°F) and a maximum reaching 26°C (79°F). You can expect zero precipitation during this time—0 mm (0.0 in) over 0 days—and an average humidity of 66%. Perfect weather for enjoying the outdoors!

April Temperature in San Francisco

In April in San Francisco, the average temperature is 24°C (76°F). The maximum can reach 26°C (79°F), while the minimum can drop to as low as 21°C (69°F). This pleasant climate makes it an ideal time for travelers to explore the beauty of San Francisco comfortably.

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

The chart illustrates April 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, April typically has an average temperature of 24°C (76°F), with highs reaching up to 26°C (79°F) and lows dropping to around 21°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec747474757881848483838177
Data source: Temperature data for San Francisco generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in San Francisco

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

April Precipitation Trends in San Francisco

The chart displays monthly precipitation patterns in San Francisco, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In San Francisco, April typically receives around 0 mm (0.0 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec2322003671302252661971915
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in San Francisco

In San Francisco in April humidity is 66%. With an average temperature of 24°C (76°F), this humidity feels like a warm, tropical embrace, making travel both invigorating and slightly exhausting, as you immerse yourself in the vibrant atmosphere while constantly seeking shade and refreshment.

April Average Humidity in San Francisco

This chart illustrates the average monthly humidity levels in San Francisco, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in San Francisco is approximately 66%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in San Francisco

In San Francisco in April, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Francisco.

Maximum UV Index Levels in San Francisco for April

The chart shows the monthly maximum UV Index (UVI) for San Francisco in April, 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 April, the maximum UV index in San Francisco typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131213121197
Data source: San Francisco April 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 April 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 April’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 April’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

Compare San Francisco's Climate with Cities Worldwide