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May Weather in San Isidro, Philippines

Last updated: August 27, 2025

In San Isidro, Philippines, the average temperature in May hovers around 27°C (80°F), with a minimum of 21°C (71°F) and a maximum reaching 32°C (91°F). This month also brings significant rainfall, with 386 mm (15.2 in) expected over the course of 28 days. Be prepared for a humid atmosphere, as the average humidity stands at a lush 83%!

May Temperature in San Isidro

In May in San Isidro, the average temperature is 27°C (80°F), with maximums reaching up to 32°C (91°F) and minimums dropping as low as 21°C (71°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy the outdoor attractions.

May Weather in San Isidro: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Isidro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Isidro, May typically has an average temperature of 27°C (80°F), with highs reaching up to 32°C (91°F) and lows dropping to around 21°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec777778798079797979797978
Data source: Temperature data for San Isidro 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.

May Precipitation in San Isidro

In San Isidro in May, the total precipitation amount reached 386 mm (15.2 in) over the course of 28 days.

May Precipitation Trends in San Isidro

The chart displays monthly precipitation patterns in San Isidro, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In San Isidro, May typically receives around 386 mm (15.2 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec302228231194386387328289299319329312
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Isidro

In San Isidro in May, humidity is 83%. With an average temperature of 27°C (80°F), this humidity feels like a warm, steamy embrace, making traveling a bit uncomfortable as the air clings to your skin and renders even the slightest exertion more exhausting.

May Average Humidity in San Isidro

This chart illustrates the average monthly humidity levels in San Isidro, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in San Isidro is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%82%83%85%86%87%89%85%87%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Isidro

In San Isidro in May, 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 Isidro, you can check here.

Maximum UV Index Levels in San Isidro for May

The chart shows the monthly maximum UV Index (UVI) for San Isidro in May, 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 May, the maximum UV index in San Isidro typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131416161413131414141211
Data source: San Isidro May 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 May Weather in San Isidro Compares to Other Months

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

This table compares monthly weather conditions in San Isidro, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)302 mm (11.9 inches)88%extreme
February Weather25°C (77°F)228 mm (9.0 inches)86%extreme
March Weather26°C (78°F)231 mm (9.1 inches)84%extreme
April Weather26°C (79°F)194 mm (7.7 inches)82%extreme
May Weather27°C (80°F)386 mm (15.2 inches)83%extreme
June Weather26°C (80°F)387 mm (15.2 inches)85%extreme
July Weather26°C (79°F)328 mm (12.9 inches)86%extreme
August Weather26°C (80°F)289 mm (11.4 inches)87%extreme
September Weather26°C (79°F)299 mm (11.8 inches)89%extreme
October Weather26°C (79°F)319 mm (12.6 inches)85%extreme
November Weather26°C (79°F)329 mm (13.0 inches)87%extreme
December Weather25°C (78°F)312 mm (12.3 inches)91%extreme

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