May weather forecast
Cabo Rojo, PR

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Weather in May

In May, Cabo Rojo experiences a considerable surge in rainfall, with precipitation measures reaching up to 2.56" (65mm). The intermittent rain showers add a unique touch to the city’s weather. Still, the weather encourages visitors and residents to enjoy the city's various amenities, thanks to the intermittent nature of showers.

Temperature

The onset of May marks an average high-temperature of a still warm 83.8°F (28.8°C), hardly differing from April's 82.9°F (28.3°C). In Cabo Rojo, May is characterized by an average low-temperature of 76.6°F (24.8°C), indicating a minor drop from daytime highs.

Heat index

During May, the heat index is calculated to be a hot 91.4°F (33°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

In May, the average relative humidity is 76%.

Rainfall

In Cabo Rojo, in May, during 24.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Cabo Rojo, during the entire year, the rain falls for 235 days and collects up to 25.55" (649mm) of precipitation.

Daylight

In Cabo Rojo, the average length of the day in May is 12h and 59min.
On the first day of May, sunrise is at 6:01 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:00 pm AST.

Sunshine

In Cabo Rojo, the average sunshine in May is 10.7h.

UV index

The months with the highest UV index are March through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in May?

During May, Cabo Rojo experiences an average high-temperature of 83.8°F (28.8°C) and a low-temperature of 76.6°F (24.8°C). In May, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 91.4°F (33°C).

What is the average humidity in May in Cabo Rojo?

The average relative humidity in May is 76%.

How much does it rain in May?

In Cabo Rojo, in May, it is raining for 24.3 days, with typically 2.56" (65mm) of accumulated precipitation.

How many hours of daylight does Cabo Rojo have in May?

In Cabo Rojo, the average day length in May is 12h and 59min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:01 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:00 pm AST.

How many hours of sunshine does Cabo Rojo have in May?

In May, the average sunshine duration is 10.7h.

When is the highest UV index?

March through November, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in May?

In Cabo Rojo, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Cabo Rojo, PR

Average temperature in May - Cabo Rojo, PR
  • Average high temperature in May: 83.8°F

The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is January (81.3°F).

  • Average low temperature in May: 76.6°F

The months with the highest average low temperature are July and August (78.8°F).
The coldest month (with the lowest average low temperature) is February (73.4°F).

Average pressure in May
Cabo Rojo, PR

Average pressure in May - Cabo Rojo, PR
  • Average pressure in May: 29.97"Hg

The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.89"Hg).

Average wind speed in May
Cabo Rojo, PR

Average wind speed in May - Cabo Rojo, PR
  • Average wind speed in May: 8.3mph

The windiest month (with the highest average wind speed) is July (8.7mph).
The calmest months (with the lowest average wind speed) are October and November (7mph).

Average humidity in May
Cabo Rojo, PR

Average humidity in May - Cabo Rojo, PR
  • Average humidity in May: 76%

The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is March (74%).

Average rainfall in May
Cabo Rojo, PR

Average rainfall in May - Cabo Rojo, PR
  • Average rainfall in May: 2.56"

The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in May
Cabo Rojo, PR

Average rainfall days in May - Cabo Rojo, PR
  • Average rainfall days in May: 24.3 days

The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is January (13.5 days).

Average daylight in May /
Average sunshine in May
Cabo Rojo, PR

Average daylight in May / Average sunshine in May - Cabo Rojo, PR
  • Average daylight in May: 13h and 0min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).

Average sunshine days in May
Cabo Rojo, PR

Average sunshine days in May - Cabo Rojo, PR
  • Average sunshine days in May: 4.7 days

The month with the most sunshine days is January (13.5 days).
The month with the least sunshine days is May (4.7 days).

Average UV index in May
Cabo Rojo, PR

Average UV index in May - Cabo Rojo, PR
  • Average UV index in May: 7

The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).

Average cloud cover in May
Cabo Rojo, PR

Average cloud cover in May - Cabo Rojo, PR
  • Average cloud cover in May: 28

The month with the most cloud cover is May (Cloud cover 28).
The months with the least cloud cover are January, February and December (Cloud cover 20).

Average visibility in May
Cabo Rojo, PR

Average visibility in May - Cabo Rojo, PR
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Cabo Rojo, Puerto Rico, USA

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