May
Weather in May
Temperature
The introduction of May sees an average high-temperature of a still agreeable 21°C (69.8°F), hardly deviating from April. May nights are marked by an average temperature drop to a moderate 14°C (57.2°F).Rainfall
In May, the rain falls for 1 days. Throughout May, 8mm (0.31") of precipitation is accumulated. Throughout the year, in Puerto Rico, there are 21 rainfall days, and 291mm (11.46") of precipitation is accumulated.Sea temperature
In May, the average sea temperature is 20.3°C (68.5°F).Note: In water of 20.3°C (68.5°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in May in Puerto Rico is 13h and 32min.On the first day of May, sunrise is at 07:22 and sunset at 20:37. On the last day of the month, sunrise is at 07:07 and sunset at 20:54 WEST.
Sunshine
In May, the average sunshine in Puerto Rico is 9h.UV index
In Puerto Rico, the average daily maximum UV index in May is 10. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 10 in May, converts into the following recommendations:
Immediate precautions are necessary; otherwise, skin and eyes might get damaged quickly. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Puerto Rico in May?
How much does it rain in Puerto Rico in May?
How cold is the water in May in Puerto Rico?
How many hours of daylight does Puerto Rico have in May?
What time are sunrise and sunset in May in Puerto Rico?
How long on average sun shines in May in Puerto Rico?
What is the UV index intensity in May in Puerto Rico?
Average temperature in May
Puerto Rico, Spain
- Average high temperature in May: 21°C
The warmest month (with the highest average high temperature) is August (26°C).
The months with the lowest average high temperature are January and February (18°C).
- Average low temperature in May: 14°C
The month with the highest average low temperature is August (19°C).
The coldest months (with the lowest average low temperature) are January and February (12°C).
Average rainfall in May
Puerto Rico, Spain
- Average rainfall in May: 8mm
The wettest month (with the highest rainfall) is December (51mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in May
Puerto Rico, Spain
- Average rainfall days in May: 1 days
The month with the highest number of rainy days is December (4 days).
The months with the least rainy days are June, July and August (0 days).
Average sea temperature in May
Puerto Rico, Spain
- Average sea temperature in May: 20.3°C
The best month for swimming (with the highest average sea temperature) is October (23.6°C).
The coldest months (with the lowest average sea temperature) are February and March (19.3°C).
Average daylight in May /
Average sunshine in May
Puerto Rico, Spain
- Average daylight in May: 13h and 3min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in May: 9h
The month with the most sunshine is July (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 6h).
Average UV index in May
Puerto Rico, Spain
- Average UV index in May: 10
The months with the highest UV index are June, July and August (UV index 11).
The months with the lowest UV index are January and December (UV index 4).
