Normal weather for San Juan in May
It's hot in May in San Juan with an average temperature of 32°C. Temperatures this month range from a low of 32°C to a high of 33°C. At night, you can expect temperatures between 24°C and 25°C.
In May, there is an average of 95 mm of precipitation, spread over 12 days. The wind speed is around 5 Bft, mostly coming from the East.
San Juan in May |
New York | ||
|---|---|---|---|
 Average Temperature |
32°C | 22°C | |
 High Temp |
33°C | 28°C | |
| Low Temp |
32°C | 17°C | |
 Total Precipitation |
95 mm | 105 mm | |
| Rainy Days |
12 days | 14 days | |
Start of May
The month of May starts in San Juan with hot temps, averaging around 33°C during the day and nights around 25°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid May
By mid-May, daytime temps stay steady at around 33°C, with nights around 25°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of May
By the end of May, the average daytime temperature in San Juan is around 33°C, while nighttime temps are about 25°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit San Juan?
May is a good month to be in San Juan for sunny weather. You’ll have high temperatures and not too much rain.
The hurricane season in San Juan runs from June to November.
Temperature records for San Juan in May
Check out the climate of San Juan for all months and discover the best travel time
April
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Daily Temperature in May in San Juan
This chart shows the average daily high and low temperatures in May for San Juan, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in San Juan
The chart below shows the average daily precipitation in May for San Juan, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 12 days of precipitation in San Juan.
Daily UV Index in May in San Juan
This chart shows the average daily UV index in May in San Juan, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in San Juan Over the Years
This chart shows the average temperature in May in San Juan, measured in degrees Celsius, over the past few years.
Total Precipitation in May in San Juan Over the Years
This chart shows the average precipitation in May in San Juan, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in May for San Juan
Click on any day in May to get detailed info about the usual weather on that day in San Juan. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in San Juan
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Average Weather in San Juan by Month
Click on a month below to see detailed weather info for San Juan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
