National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

84°F

29°C

Humidity 66%
Wind Speed S 8 mph
Barometer 30.09 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 15 May 8:56 am AST
Extended Forecast for

San Juan PR

  • Today

    Today: Scattered showers, mainly after noon. Partly sunny, with a high near 90. East southeast wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 90 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly between 9pm and 3am. Partly cloudy, with a low around 77. East southeast wind around 8 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Scattered
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 9am. Partly sunny, with a high near 90. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 90 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 77. East wind around 10 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 89. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Isolated showers, then scattered showers and thunderstorms after midnight. Mostly cloudy, with a low around 77. East wind around 10 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Monday

    Monday: Scattered showers, mainly before noon. Mostly sunny, with a high near 89. East wind 13 to 16 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 76. East wind around 9 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Scattered showers after noon. Mostly sunny, with a high near 90. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 90 °F

    Sunny then
    Scattered
    Showers

Detailed Forecast

Today
Scattered showers, mainly after noon. Partly sunny, with a high near 90. East southeast wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Scattered showers, mainly between 9pm and 3am. Partly cloudy, with a low around 77. East southeast wind around 8 mph. Chance of precipitation is 50%.
Saturday
Showers likely, mainly before 9am. Partly sunny, with a high near 90. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 77. East wind around 10 mph. Chance of precipitation is 50%.
Sunday
Scattered showers. Partly sunny, with a high near 89. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday Night
Isolated showers, then scattered showers and thunderstorms after midnight. Mostly cloudy, with a low around 77. East wind around 10 mph. Chance of precipitation is 50%.
Monday
Scattered showers, mainly before noon. Mostly sunny, with a high near 89. East wind 13 to 16 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 76. East wind around 9 mph.
Tuesday
Scattered showers after noon. Mostly sunny, with a high near 90. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 76. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.41°N 66.08°W (Elev. 16 ft)
Last Update:
3:57 am AST May 15, 2026
Forecast Valid:
9am AST May 15, 2026-6pm AST May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation