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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.

A Few Clouds

79°F

26°C

Humidity 88%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 11 Nov 4:56 am AST
Extended Forecast for

Guaynabo PR

  • Veterans Day

    Veterans Day: Isolated showers after 9am. Mostly sunny, with a high near 89. Light southeast wind becoming east southeast 8 to 13 mph in the morning. Chance of precipitation is 20%.

    High: 89 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers before 9pm, then isolated showers after 3am. Partly cloudy, with a low around 78. South southeast wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 90. East southeast wind 6 to 14 mph. Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 80. Southeast wind around 7 mph. Chance of precipitation is 10%.

    Low: 80 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 90. Southeast wind 9 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 90 °F

    Isolated
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Mostly clear, with a low around 80. South southeast wind around 10 mph.

    Low: 80 °F

    Mostly Clear

  • Saturday

    Saturday: Scattered showers, mainly after noon. Mostly sunny, with a high near 90. South southeast wind 10 to 15 mph. Chance of precipitation is 40%.

    High: 90 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 79. Southeast wind around 6 mph.

    Low: 79 °F

    Partly Cloudy

  • Sunday

    Sunday: Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East southeast wind 8 to 11 mph. Chance of precipitation is 30%.

    High: 89 °F

    Mostly Sunny
    then
    Scattered
    Showers

Detailed Forecast

Veterans Day
Isolated showers after 9am. Mostly sunny, with a high near 89. Light southeast wind becoming east southeast 8 to 13 mph in the morning. Chance of precipitation is 20%.
Tonight
Isolated showers before 9pm, then isolated showers after 3am. Partly cloudy, with a low around 78. South southeast wind 6 to 8 mph. Chance of precipitation is 20%.
Thursday
Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 90. East southeast wind 6 to 14 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers. Partly cloudy, with a low around 80. Southeast wind around 7 mph. Chance of precipitation is 10%.
Friday
Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 90. Southeast wind 9 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 80. South southeast wind around 10 mph.
Saturday
Scattered showers, mainly after noon. Mostly sunny, with a high near 90. South southeast wind 10 to 15 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 79. Southeast wind around 6 mph.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East southeast wind 8 to 11 mph. Chance of precipitation is 30%.
Sunday Night
Clear, with a low around 78.
Monday
Sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Guaynabo PR
 18.39°N 66.11°W (Elev. 151 ft)
Last Update:
3:35 am AST Nov 11, 2026
Forecast Valid:
5am AST Nov 11, 2026-6pm AST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation