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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

87°F

31°C

Humidity 75%
Wind Speed NE 12 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 5 Oct 1:56 pm AST
Extended Forecast for

San Juan PR

Heat Advisory October 5, 02:02pm until October 5, 03:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 5, 02:02pm until October 5, 03:00pm

    NOW until 3:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers, mainly after midnight.  Mostly cloudy, with a low around 78. Southeast wind around 7 mph.  Chance of precipitation is 50%.

    Low: 78 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm.  Partly sunny, with a high near 92. Heat index values as high as 103. East wind 7 to 14 mph.  Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 92 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, then showers likely and possibly a thunderstorm after midnight.  Mostly cloudy, with a low around 79. East southeast wind 6 to 8 mph.  Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Scattered showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 87. East southeast wind 8 to 14 mph.  Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly before midnight.  Partly cloudy, with a low around 78. Southeast wind around 7 mph.  Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Thursday

    Thursday: Showers likely, mainly after noon.  Mostly cloudy, with a high near 91. East wind 8 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%.

    High: 91 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers.  Partly cloudy, with a low around 78. East southeast wind 5 to 7 mph.  Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 92. Heat index values as high as 105. East southeast wind around 15 mph. Chance of precipitation is 60%.
Tonight
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 78. Southeast wind around 7 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 92. Heat index values as high as 103. East wind 7 to 14 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Scattered showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 79. East southeast wind 6 to 8 mph. Chance of precipitation is 60%.
Wednesday
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 87. East southeast wind 8 to 14 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 78. Southeast wind around 7 mph. Chance of precipitation is 30%.
Thursday
Showers likely, mainly after noon. Mostly cloudy, with a high near 91. East wind 8 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 78. East southeast wind 5 to 7 mph. Chance of precipitation is 30%.
Friday
Scattered showers, mainly after noon. Mostly sunny, with a high near 91. East northeast wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 78.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.39°N 66.05°W (Elev. 180 ft)
12:38 pm AST Oct 5, 2026
2pm AST Oct 5, 2026-6pm AST Oct 11, 2026
 
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Additional Resources

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