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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

77°F

25°C

Humidity 79%
Wind Speed SE 5 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Apr 9:56 pm AST
Extended Forecast for

San Juan PR

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms between midnight and 3am, then scattered showers after 3am. Mostly cloudy, with a low around 72. East southeast wind around 9 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 86. East wind 9 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 3am. Mostly cloudy, with a low around 73. East wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Showers
    Likely

  • Monday

    Monday: Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 87. East wind 9 to 15 mph. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers. Mostly cloudy, with a low around 74. East wind 7 to 9 mph. Chance of precipitation is 50%.

    Low: 74 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers. Partly sunny, with a high near 87. East wind 6 to 13 mph. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. East wind 3 to 6 mph.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 87. East northeast wind 7 to 9 mph. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. East wind 5 to 7 mph.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms between midnight and 3am, then scattered showers after 3am. Mostly cloudy, with a low around 72. East southeast wind around 9 mph. Chance of precipitation is 60%.
Sunday
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 86. East wind 9 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly before 3am. Mostly cloudy, with a low around 73. East wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 87. East wind 9 to 15 mph. Chance of precipitation is 50%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 74. East wind 7 to 9 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers. Partly sunny, with a high near 87. East wind 6 to 13 mph. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 73. East wind 3 to 6 mph.
Wednesday
Scattered showers. Partly sunny, with a high near 87. East northeast wind 7 to 9 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 73. East wind 5 to 7 mph.
Thursday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Friday
Showers likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Showers likely. Mostly sunny, with a high near 86. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
4:05 pm AST Apr 18, 2026
Forecast Valid:
10pm AST Apr 18, 2026-6pm AST Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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