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Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Light Rain

85°F

29°C

Humidity 72%
Wind Speed E 6 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 27 Aug 8:56 am AST
Extended Forecast for

San Juan PRSimilar City Names

Heat Advisory August 27, 10:00am until August 27, 05:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Scattered showers before noon, then scattered showers and thunderstorms after 3pm. Sunny early, then becoming partly sunny, with a high near 93. Heat index values as high as 107. East northeast wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 93 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly before 9pm. Partly cloudy, with a low around 80. East southeast wind 8 to 10 mph. Chance of precipitation is 30%.

    Low: 80 °F

    Scattered
    Showers

  • Friday

    Friday: Isolated showers before 9am. Sunny, with a high near 91. Heat index values as high as 105. East wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 91 °F

    Isolated
    Showers then
    Sunny

  • Friday Night

    Friday Night: Scattered showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 81. East wind around 10 mph. Chance of precipitation is 50%.

    Low: 81 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers, mainly before noon. Mostly sunny, with a high near 93. East wind 13 to 17 mph. Chance of precipitation is 30%.

    High: 93 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Isolated showers, then scattered showers and thunderstorms after midnight. Partly cloudy, with a low around 81. East wind 9 to 11 mph. Chance of precipitation is 50%.

    Low: 81 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 92. East northeast wind 14 to 18 mph, with gusts as high as 24 mph.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Scattered showers. Mostly cloudy, with a low around 80. East southeast wind 9 to 11 mph. Chance of precipitation is 50%.

    Low: 80 °F

    Scattered
    Showers

  • Monday

    Monday: Showers likely, mainly after noon. Mostly cloudy, with a high near 92. East southeast wind 8 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 92 °F

    Showers
    Likely

Detailed Forecast

Today
Scattered showers before noon, then scattered showers and thunderstorms after 3pm. Sunny early, then becoming partly sunny, with a high near 93. Heat index values as high as 107. East northeast wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Tonight
Scattered showers, mainly before 9pm. Partly cloudy, with a low around 80. East southeast wind 8 to 10 mph. Chance of precipitation is 30%.
Friday
Isolated showers before 9am. Sunny, with a high near 91. Heat index values as high as 105. East wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Friday Night
Scattered showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 81. East wind around 10 mph. Chance of precipitation is 50%.
Saturday
Scattered showers, mainly before noon. Mostly sunny, with a high near 93. East wind 13 to 17 mph. Chance of precipitation is 30%.
Saturday Night
Isolated showers, then scattered showers and thunderstorms after midnight. Partly cloudy, with a low around 81. East wind 9 to 11 mph. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 92. East northeast wind 14 to 18 mph, with gusts as high as 24 mph.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 80. East southeast wind 9 to 11 mph. Chance of precipitation is 50%.
Monday
Showers likely, mainly after noon. Mostly cloudy, with a high near 92. East southeast wind 8 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Monday Night
Showers likely. Mostly cloudy, with a low around 79. Chance of precipitation is 60%.
Tuesday
Scattered showers. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 79. Chance of precipitation is 40%.
Wednesday
Scattered showers. Partly sunny, with a high near 93. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PRSimilar City Names
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
3:24 am AST Aug 27, 2026
Forecast Valid:
9am AST Aug 27, 2026-6pm AST Sep 2, 2026
 
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