Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The introduction of May notes a subtle temperature variation to a still warm 83.1°F (28.4°C) from April's 81.7°F (27.6°C). May introduces a small decrease to a nighttime average of 75.6°F (24.2°C).Heat index
The heat index in May is evaluated at a tropical 91.4°F (33°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Note that heat index values are valued for light wind and location in the shade. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
May through July, October and November, with an average relative humidity of 79%, are the most humid months.Rainfall
The month with the most rainfall is May, when the rain falls for 22.9 days and typically aggregates up to 4.02" (102mm) of precipitation.Ocean temperature
In Barceloneta, the average seawater temperature in May is 81.5°F (27.5°C).Note: Water activities including swimming and diving are pleasurable in temperatures between 77°F (25°C) and 84.2°F (29°C), ensuring comfort and enjoyment for extended time frames.
Daylight
In May, the average length of the day in Barceloneta is 13h and 1min.On the first day of the month, sunrise is at 5:58 am and sunset at 6:47 pm. On the last day of May, sunrise is at 5:49 am and sunset at 6:58 pm AST.
Sunshine
The average sunshine in May is 10.6h.UV index
April through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 7 during May translates into the following guidance:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in May?
What are the most humid months?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
What is the ocean temperature in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Barceloneta have in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Barceloneta, PR
- Average high temperature in May: 83.1°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is March (80.2°F).
- Average low temperature in May: 75.6°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is March (72.5°F).
Average pressure in May
Barceloneta, PR
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed in May
Barceloneta, PR
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is July (9.9mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).
Average humidity in May
Barceloneta, PR
- Average humidity in May: 79%
The months with the highest relative humidity are May, June, July, October and November (79%).
The months with the lowest relative humidity are February, March and April (77%).
Average rainfall in May
Barceloneta, PR
- Average rainfall in May: 4.02"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in May
Barceloneta, PR
- Average rainfall days in May: 22.9 days
The month with the highest number of rainy days is May (22.9 days).
The month with the least rainy days is January (13.3 days).
Average sea temperature in May
Barceloneta, PR
- Average sea temperature in May: 81.5°F
The best month for swimming (with the highest average sea temperature) is September (85°F).
The coldest month (with the lowest average sea temperature) is February (79.1°F).
Average daylight in May /
Average sunshine in May
Barceloneta, 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 0min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in May
Barceloneta, PR
- Average sunshine days in May: 5.9 days
The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is May (5.9 days).
Average UV index in May
Barceloneta, PR
- Average UV index in May: 7
The months with the highest UV index are April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 6).
Average cloud cover in May
Barceloneta, PR
- Average cloud cover in May: 34
The month with the most cloud cover is May (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in May
Barceloneta, 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).
Barceloneta, Puerto Rico, USA
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