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April Weather in San Juan, Philippines

Last updated: August 27, 2025

In April, the average temperature in San Juan, Philippines typically hovers around 29°C (85°F), with temperatures dipping as low as 23°C (74°F) and peaking at 36°C (97°F). Expect an average of 76 mm (3.0 in) of precipitation over approximately 14 days, contributing to a humidity level of about 78%. Stay prepared for a warm and humid month!

April Temperature in San Juan

In April in San Juan, the average temperature is 29°C (85°F). Maximums can reach 36°C (97°F), and minimums can drop to as low as 23°C (74°F). It's a great time to visit for warm weather, making it ideal for outdoor activities and exploring the area.

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 29°C (85°F), with highs reaching up to 36°C (97°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec818183848583828282828382
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 76 mm (3.0 in) spread over 14 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 76 mm (3.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec154998176204319395364368319196216
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 78%. With an average temperature of 29°C (85°F), this humidity feels like a warm, thick blanket wrapping around you, making travel somewhat challenging as you adjust to the muggy conditions. The air feels heavy, and the heat can be intense, prompting frequent breaks to find shade and staying hydrated to keep fatigue at bay.

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 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%80%77%78%85%87%88%89%90%87%90%91%
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 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 Juan.

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 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121416161414141415131211
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 (81°F)154 mm (6.1 inches)85%extreme
February Weather27°C (81°F)99 mm (3.9 inches)80%extreme
March Weather28°C (83°F)81 mm (3.2 inches)77%extreme
April Weather29°C (85°F)76 mm (3.0 inches)78%extreme
May Weather29°C (85°F)204 mm (8.0 inches)84%extreme
June Weather29°C (84°F)319 mm (12.6 inches)87%extreme
July Weather28°C (83°F)395 mm (15.6 inches)88%extreme
August Weather28°C (83°F)364 mm (14.3 inches)89%extreme
September Weather28°C (83°F)368 mm (14.5 inches)90%extreme
October Weather28°C (83°F)319 mm (12.6 inches)87%extreme
November Weather28°C (83°F)196 mm (7.7 inches)90%extreme
December Weather28°C (82°F)216 mm (8.5 inches)91%extreme

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