April Weather in San Francisco, Philippines

Last updated: August 27, 2025

In April, the average temperature in San Francisco, Philippines hovers around 27°C (81°F), with a minimum of 25°C (77°F) and a maximum reaching 29°C (84°F). Visitors should be prepared for 90 mm (3.6 in) of precipitation over approximately 17 days, contributing to an average humidity level of 88%. Stay hydrated and enjoy the tropical ambiance!

April Temperature in San Francisco

In April in San Francisco, the average temperature is 27°C (81°F). Maximums can reach 29°C (84°F), while minimums can drop to 25°C (77°F). This mild and pleasant weather makes San Francisco an ideal destination for travelers seeking warmth and comfort.

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 27°C (81°F), with highs reaching up to 29°C (84°F) and lows dropping to around 25°C (77°F).

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

April Precipitation in San Francisco

In San Francisco in April, the precipitation amount is 90 mm (3.6 in) over a duration of 17 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 90 mm (3.6 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in San Francisco

In San Francisco in April, humidity is 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.

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 88%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	297 mm (11.7 inches)	90%	extreme
February Weather	26°C (79°F)	224 mm (8.8 inches)	90%	extreme
March Weather	26°C (80°F)	162 mm (6.4 inches)	90%	extreme
April Weather	27°C (81°F)	90 mm (3.6 inches)	88%	extreme
May Weather	27°C (82°F)	132 mm (5.2 inches)	83%	extreme
June Weather	28°C (82°F)	186 mm (7.3 inches)	81%	extreme
July Weather	28°C (82°F)	238 mm (9.4 inches)	80%	extreme
August Weather	28°C (82°F)	189 mm (7.4 inches)	81%	extreme
September Weather	28°C (82°F)	215 mm (8.5 inches)	84%	extreme
October Weather	27°C (81°F)	263 mm (10.4 inches)	81%	extreme
November Weather	27°C (81°F)	241 mm (9.5 inches)	84%	extreme
December Weather	27°C (80°F)	391 mm (15.4 inches)	88%	extreme