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May Weather in Cayuco, Puerto Rico

Last updated: August 31, 2025

In Cayuco, Puerto Rico, the average temperature in May is a pleasant 25°C (78°F). During this time, you can expect minimum temperatures of 21°C (69°F) and maximums reaching up to 32°C (89°F). Be prepared for some rain, as the region sees an average precipitation of 109 mm (4.3 in) over approximately 19 days. With an average humidity level of 75%, it's the perfect time to enjoy the warm, tropical climate!

May Temperature in Cayuco

In May in Cayuco, the average temperature is 25°C (78°F). Maximums can reach 32°C (89°F), while minimums can be as low as 21°C (69°F). This pleasant climate makes Cayuco an ideal destination for travelers seeking warm and enjoyable weather.

May Weather in Cayuco: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Cayuco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cayuco, May typically has an average temperature of 25°C (78°F), with highs reaching up to 32°C (89°F) and lows dropping to around 21°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec747575767879808079787776
Data source: Temperature data for Cayuco 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 Cayuco

In Cayuco in May, the precipitation amount is 109 mm (4.3 in) over the course of 19 days.

May Precipitation Trends in Cayuco

The chart displays monthly precipitation patterns in Cayuco, 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 Cayuco, May typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec3141889110910311011721516211433
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cayuco

In Cayuco in May, humidity is 75%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket enveloping you, making travel feel sticky and heavy, but also vibrant and alive, as the air is saturated with the scents of the surroundings and the energy of the environment.

May Average Humidity in Cayuco

This chart illustrates the average monthly humidity levels in Cayuco, 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 Cayuco is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%75%77%80%80%79%78%78%76%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cayuco

In Cayuco 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 Cayuco, you can check here.

Maximum UV Index Levels in Cayuco for May

The chart shows the monthly maximum UV Index (UVI) for Cayuco 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 Cayuco typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: Cayuco 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 Cayuco Compares to Other Months

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

This table compares monthly weather conditions in Cayuco, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)31 mm (1.2 inches)76%very high
February Weather24°C (75°F)41 mm (1.6 inches)75%extreme
March Weather24°C (75°F)88 mm (3.5 inches)74%extreme
April Weather24°C (76°F)91 mm (3.6 inches)75%extreme
May Weather25°C (78°F)109 mm (4.3 inches)75%extreme
June Weather26°C (79°F)103 mm (4.1 inches)77%extreme
July Weather27°C (80°F)110 mm (4.3 inches)80%extreme
August Weather27°C (80°F)117 mm (4.6 inches)80%extreme
September Weather26°C (80°F)215 mm (8.5 inches)79%extreme
October Weather26°C (79°F)162 mm (6.4 inches)78%extreme
November Weather25°C (77°F)114 mm (4.5 inches)78%very high
December Weather24°C (76°F)33 mm (1.3 inches)76%very high

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