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

82°F

28°C

Humidity 79%
Wind Speed E 6 mph
Barometer 30.03 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 1 Sep 8:56 pm AST
Extended Forecast for

San Juan PR

  • Tonight

    Tonight: Scattered showers. Mostly cloudy, with a low around 80. East southeast wind 5 to 8 mph. Chance of precipitation is 40%.

    Low: 80 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 92. Heat index values as high as 107. East northeast wind 7 to 14 mph. Chance of precipitation is 30%.

    High: 92 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers. Partly cloudy, with a low around 80. East southeast wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 80 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 93. Heat index values as high as 107. East wind 6 to 15 mph. Chance of precipitation is 20%.

    High: 93 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. East southeast wind 5 to 8 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Scattered showers, mainly after noon. Mostly sunny, with a high near 93. East wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 93 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 80. East southeast wind 6 to 9 mph.

    Low: 80 °F

    Mostly Clear

  • Saturday

    Saturday: Scattered showers. Mostly sunny, with a high near 93. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 93 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Partly cloudy, with a low around 80. Southeast wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 80 °F

    Scattered
    Showers

Detailed Forecast

Tonight
Scattered showers. Mostly cloudy, with a low around 80. East southeast wind 5 to 8 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 92. Heat index values as high as 107. East northeast wind 7 to 14 mph. Chance of precipitation is 30%.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 80. East southeast wind 6 to 8 mph. Chance of precipitation is 20%.
Thursday
Isolated showers. Mostly sunny, with a high near 93. Heat index values as high as 107. East wind 6 to 15 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 79. East southeast wind 5 to 8 mph.
Friday
Scattered showers, mainly after noon. Mostly sunny, with a high near 93. East wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 80. East southeast wind 6 to 9 mph.
Saturday
Scattered showers. Mostly sunny, with a high near 93. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Saturday Night
Scattered showers. Partly cloudy, with a low around 80. Southeast wind 6 to 8 mph. Chance of precipitation is 40%.
Sunday
Showers likely, mainly after noon. Partly sunny, with a high near 94. Chance of precipitation is 70%.
Sunday Night
Scattered showers. Partly cloudy, with a low around 80. Chance of precipitation is 30%.
Labor Day
Scattered showers. Mostly sunny, with a high near 94. Chance of precipitation is 50%.
Monday Night
Scattered showers. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Tuesday
Scattered showers. Mostly sunny, with a high near 94. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
8:46 pm AST Sep 1, 2026
Forecast Valid:
9pm AST Sep 1, 2026-6pm AST Sep 8, 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