August Weather in San Juan, Philippines

Last updated: August 27, 2025

In August, the average temperature in San Juan, Philippines hovers around 28°C (82°F), with a comfortable minimum of 25°C (77°F) and a warm maximum of 32°C (90°F). Be prepared for significant precipitation, as 233 mm (9.2 in) is expected over 23 days, and the air carries a notable humidity level of 85%.

August Temperature in San Juan

In August in San Juan, the average temperature is 28°C (82°F), with maximums reaching 32°C (90°F) and minimums dropping to 25°C (77°F). It's an ideal time to visit for those who enjoy warm weather and outdoor activities.

August Weather in San Juan: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in San Juan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan, August typically has an average temperature of 28°C (82°F), with highs reaching up to 32°C (90°F) and lows dropping to around 25°C (77°F).

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

August Precipitation in San Juan

In San Juan in August, the total precipitation amount is 233 mm (9.2 in) accumulated over 23 days.

August Precipitation Trends in San Juan

The chart displays monthly precipitation patterns in San Juan, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In San Juan, August typically receives around 233 mm (9.2 inches) of precipitation spread over approximately 23 days.

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

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Millimeters (mm) Inches (in)

August Humidity in San Juan

In San Juan in August humidity is 85%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a sweaty endeavor and requiring frequent breaks to stay refreshed.

August Average Humidity in San Juan

This chart illustrates the average monthly humidity levels in San Juan, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in San Juan is approximately 85%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in San Juan

In San Juan in August, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Juan.

Maximum UV Index Levels in San Juan for August

The chart shows the monthly maximum UV Index (UVI) for San Juan in August, 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 August, the maximum UV index in San Juan typically reaches 15, which falls under the extreme exposure category.

Data source: San Juan August 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 August Weather in San Juan Compares to Other Months

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

This table compares monthly weather conditions in San Juan, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (78°F)	109 mm (4.3 inches)	78%	extreme
February Weather	25°C (78°F)	78 mm (3.1 inches)	75%	extreme
March Weather	26°C (80°F)	61 mm (2.4 inches)	74%	extreme
April Weather	27°C (81°F)	62 mm (2.4 inches)	76%	extreme
May Weather	28°C (83°F)	174 mm (6.9 inches)	76%	extreme
June Weather	28°C (83°F)	258 mm (10.2 inches)	81%	extreme
July Weather	27°C (82°F)	360 mm (14.2 inches)	84%	extreme
August Weather	28°C (82°F)	233 mm (9.2 inches)	85%	extreme
September Weather	27°C (81°F)	320 mm (12.6 inches)	85%	extreme
October Weather	27°C (81°F)	326 mm (12.8 inches)	82%	extreme
November Weather	27°C (81°F)	258 mm (10.2 inches)	85%	extreme
December Weather	26°C (79°F)	310 mm (12.2 inches)	86%	very high