Puerto RicoThe climate of San Juan
The current climate in San Juan features temperatures ranging from a high of 32°C to a low of 29°C throughout the year. The average yearly temperature is around 31°C. At night, temperatures in the colder months average around 23°C and in the warmer months around 26°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for San Juan, Puerto Rico.
Temperature records
The highest temperature recorded in San Juan in recent years was 35°C in June 2023. The lowest daytime temperature recorded was 23°C in February 2022.
Rainfall amount
On average, San Juan receives 1454 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
The hurricane season in San Juan runs from June to November.
Best time to visit San Juan?
The best time to visit San Juan for sunny weather is January, March through June and December. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit San Juan. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of San Juan
The climate table of San Juan shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 29 | 29 | 29 | 30 | 31 | 32 | 32 | 32 | 32 | 32 | 31 | 30 |
| Temp. min (°C) | 23 | 23 | 24 | 24 | 25 | 26 | 27 | 27 | 27 | 26 | 25 | 24 |
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| Precipitation (mm) | 93 | 140 | 67 | 103 | 100 | 85 | 141 | 149 | 127 | 131 | 201 | 117 |
| UV Index | 7 | 8 | 6 | 7 | 7 | 9 | 8 | 8 | 6 | 6 | 6 | 5 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in San Juan, Puerto Rico. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in San Juan
Yearly Temperature in San Juan
Precipitation charts
These charts show the average amount of precipitation in San Juan, Puerto Rico. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in San Juan
Total Yearly Precipitation in San Juan
UV index chart
This chart shows the average UV index per month in San Juan, Puerto Rico. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in San Juan
Weather experiences 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.