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April Weather in San Francisco, Colombia

Last updated: August 23, 2025

In April, the average temperature in San Francisco, Colombia is a pleasant 23°C (74°F), with a minimum of 16°C (61°F) and a maximum reaching up to 32°C (90°F). Expect an average humidity of 83%, creating a warm and somewhat muggy atmosphere. Be prepared for some rain, as the region typically experiences 252 mm (9.9 in) of precipitation over 21 days.

April Temperature in San Francisco

In April in San Francisco, the average temperature is 23°C (74°F). Maximums can reach 32°C (90°F), while minimums can drop to as low as 16°C (61°F). This pleasant climate makes San Francisco an ideal destination for travelers seeking comfortable weather and outdoor adventures.

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 23°C (74°F), with highs reaching up to 32°C (90°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec727473737474757574737273
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.

April Precipitation in San Francisco

In San Francisco in April, the precipitation amount is 252 mm (9.9 in) spread over 21 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 252 mm (9.9 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec1061012382522511035594147279425146
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Francisco

In San Francisco in April humidity is 83%. With an average temperature of 23°C (74°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier, and leaving you constantly in search of a cool breeze or shade while exploring.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%77%80%83%88%87%85%80%80%85%87%83%
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 an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in San Francisco, you can check 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 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516171514141514141312
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 Weather22°C (73°F)105 mm (4.2 inches)78%extreme
February Weather23°C (74°F)101 mm (4.0 inches)77%extreme
March Weather23°C (74°F)238 mm (9.4 inches)80%extreme
April Weather23°C (74°F)252 mm (9.9 inches)83%extreme
May Weather23°C (74°F)251 mm (9.9 inches)87%extreme
June Weather23°C (74°F)103 mm (4.1 inches)87%extreme
July Weather24°C (76°F)55 mm (2.2 inches)85%extreme
August Weather24°C (76°F)94 mm (3.7 inches)80%extreme
September Weather23°C (75°F)147 mm (5.8 inches)80%extreme
October Weather23°C (73°F)279 mm (11.0 inches)85%extreme
November Weather22°C (72°F)425 mm (16.7 inches)87%extreme
December Weather23°C (73°F)146 mm (5.7 inches)83%extreme

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