ClimateForecastMayJune >>

San Juan weather in May (North Puerto Rico, Puerto Rico)

What can you expect from the weather in San Juan during May? Check out this comprehensive weather guide.

In May, San Juan typically experiences very high temperatures and high rainfall. Throughout the daytime, temperatures often hover around 30°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 24°C.

Keep in mind that while these are the average temperatures, there can be days that are even hotter. It's essential to be prepared for such heat. Wearing light, breathable fabrics and protecting yourself from the sun's intensity with hats or shades can make a difference. Hydration is key, so remember to drink plenty of water, especially if you find yourself outdoors for extended periods.

San Juan in May usually receives high rainfall, averaging around 134 mm for the month. Based on our climate data of the past 30 years, about 16 days of rain are anticipated.

The days are predominantly sunny, with an estimated total of around 255 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you're looking for dry conditions and comfortable temperatures, May may not be the ideal month to visit San Juan. January, February, March and December generally stand out with the best circumstances. While May, July, August, September, October and November tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized San Juan climate page with graphs.

 

San Juan, monthly averages in May

Min TemperatureMin Temperature 24°C  
Max TemperatureMax Temperature 30°C  
Water TemperatureWater Temperature 27°C  
Chance of RainChance of Rain 53%  
PrecipitationPrecipitation 134 mm  
Rainy daysRainy days 16 days  
HumidityHumidity 75%  
WindspeedWindspeed 11 km/h  
SunshineSunshine 255 hours  
Percentage SunshinePercentage Sunshine 63%  

Where to go in Puerto Rico in May

Find out more about the weather in Puerto Rico in May and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 27°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Swimming
9/10
Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in San Juan.

Our site offers climate and forecast data for every country in the world. Are you going to Puerto Rico? On this website you can find historical weather averages for many cities in Puerto Rico. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.