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April Weather in San Francisco, Philippines

Last updated: August 27, 2025

In April, the average temperature in San Francisco, Philippines hovers around 28°C (83°F), making it quite a warm destination. However, temperatures can range from a pleasant 21°C (70°F) to a sweltering 36°C (98°F). Be prepared for some rain, as you'll likely experience about 75 mm (3.0 in) of precipitation over approximately 11 days. With an average humidity of 77%, it's advisable to stay hydrated and enjoy the tropical vibes!

April Temperature in San Francisco

In April in San Francisco, the average temperature is 28°C (83°F). Maximums can reach 36°C (98°F), while minimums can drop to as low as 21°C (70°F). This makes it an ideal time for travelers seeking warm weather and sunny days.

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 28°C (83°F), with highs reaching up to 36°C (98°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec787981828280798079808079
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 75 mm (3.0 in) over a span of 11 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 75 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec123768675234411490459493435176246
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 77%. With an average temperature of 28°C (83°F), this humidity feels like walking through a warm, damp blanket, making outdoor activities more challenging and requiring frequent hydration breaks for travelers.

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 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%77%78%80%81%83%85%81%83%86%
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 is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to 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 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121416161414141515141211
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 Weather26°C (79°F)123 mm (4.8 inches)81%extreme
February Weather26°C (79°F)76 mm (3.0 inches)78%extreme
March Weather27°C (81°F)86 mm (3.4 inches)76%extreme
April Weather28°C (83°F)75 mm (3.0 inches)77%extreme
May Weather28°C (83°F)234 mm (9.2 inches)78%extreme
June Weather27°C (81°F)411 mm (16.2 inches)80%extreme
July Weather26°C (80°F)490 mm (19.3 inches)81%extreme
August Weather26°C (80°F)458 mm (18.0 inches)83%extreme
September Weather26°C (80°F)493 mm (19.4 inches)85%extreme
October Weather26°C (80°F)435 mm (17.1 inches)80%extreme
November Weather27°C (80°F)176 mm (6.9 inches)83%extreme
December Weather26°C (80°F)245 mm (9.7 inches)86%extreme

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