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April Weather in San Juan, Philippines

Last updated: August 27, 2025

In April, the average temperature in San Juan, Philippines is a warm 30°C (86°F). Daily highs can reach up to 36°C (97°F), while the nights cool down to a minimum of 25°C (77°F). During this month, expect 13 mm (0.5 in) of precipitation spread over about 2 days. With an average humidity of 69%, be prepared for a sticky but vibrant atmosphere!

April Temperature in San Juan

In April in San Juan, the average temperature is 30°C (86°F), with maximums reaching 36°C (97°F) and minimums dropping to as low as 25°C (77°F). This makes it an ideal time for travelers looking to enjoy warm weather and outdoor activities.

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

The chart illustrates April 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, April typically has an average temperature of 30°C (86°F), with highs reaching up to 36°C (97°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec808183858785838283838381
Data source: Temperature data for San Juan 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 Juan

In San Juan in April, the precipitation amount is 13 mm (0.5 in) over a span of 2 days.

April Precipitation Trends in San Juan

The chart displays monthly precipitation patterns in San Juan, 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 Juan, April typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec7221121391199362290290181120160
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Juan

In San Juan in April humidity is 69%. With an average temperature of 30°C (86°F), this humidity feels like a warm blanket wrapped around you, making traveling somewhat sticky and heavy, requiring frequent breaks and hydration to stay comfortable.

April Average Humidity in San Juan

This chart illustrates the average monthly humidity levels in San Juan, 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 Juan is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%71%69%69%76%87%89%89%89%86%89%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Juan

In San Juan in April, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Juan, you can check here.

Maximum UV Index Levels in San Juan for April

The chart shows the monthly maximum UV Index (UVI) for San Juan 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 Juan typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314141313131414131010
Data source: San Juan 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 Juan Compares to Other Months

Weather in San Juan varies notably across the year, with each month offering distinct climate conditions. This page compares April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)71 mm (2.8 inches)76%extreme
February Weather27°C (81°F)21 mm (0.8 inches)71%extreme
March Weather29°C (84°F)12 mm (0.5 inches)68%extreme
April Weather30°C (86°F)13 mm (0.5 inches)69%extreme
May Weather30°C (87°F)91 mm (3.6 inches)76%extreme
June Weather29°C (85°F)199 mm (7.8 inches)87%extreme
July Weather28°C (83°F)362 mm (14.2 inches)88%extreme
August Weather28°C (83°F)290 mm (11.4 inches)89%extreme
September Weather28°C (83°F)290 mm (11.4 inches)89%extreme
October Weather28°C (83°F)181 mm (7.1 inches)86%extreme
November Weather28°C (83°F)120 mm (4.7 inches)89%very high
December Weather27°C (82°F)160 mm (6.3 inches)86%very high

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