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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.

Mostly Cloudy

78°F

26°C

Humidity 82%
Wind Speed SE 6 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 9 Apr 2:56 am AST
Extended Forecast for

Guaynabo PR

  • Overnight

    Overnight: Isolated showers. Partly cloudy, with a low around 74. East southeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 87. East southeast wind 9 to 15 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 73. East southeast wind 8 to 10 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers after noon. Sunny, with a high near 87. East southeast wind 9 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.

    High: 87 °F

    Sunny then
    Isolated
    Showers

  • Friday Night

    Friday Night: Isolated showers. Partly cloudy, with a low around 72. East wind 6 to 9 mph. Chance of precipitation is 10%.

    Low: 72 °F

    Isolated
    Showers

  • Saturday

    Saturday: Isolated showers. Mostly sunny, with a high near 87. East wind 7 to 15 mph. Chance of precipitation is 20%.

    High: 87 °F

    Isolated
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. East wind 6 to 9 mph.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Scattered showers. Mostly cloudy, with a high near 86. East northeast wind 8 to 14 mph. Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers. Mostly cloudy, with a low around 72. East northeast wind 6 to 9 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 74. East southeast wind around 6 mph. Chance of precipitation is 20%.
Thursday
Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 87. East southeast wind 9 to 15 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers. Partly cloudy, with a low around 73. East southeast wind 8 to 10 mph. Chance of precipitation is 20%.
Friday
Isolated showers after noon. Sunny, with a high near 87. East southeast wind 9 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Friday Night
Isolated showers. Partly cloudy, with a low around 72. East wind 6 to 9 mph. Chance of precipitation is 10%.
Saturday
Isolated showers. Mostly sunny, with a high near 87. East wind 7 to 15 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 72. East wind 6 to 9 mph.
Sunday
Scattered showers. Mostly cloudy, with a high near 86. East northeast wind 8 to 14 mph. Chance of precipitation is 50%.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 72. East northeast wind 6 to 9 mph. Chance of precipitation is 50%.
Monday
Showers likely, mainly after noon. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.
Tuesday
Showers likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Tuesday Night
Showers likely. Cloudy, with a low around 71. Chance of precipitation is 70%.
Wednesday
Scattered showers. Partly sunny, with a high near 84. Chance of precipitation is 50%.
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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:
2:57 am AST Apr 9, 2026
Forecast Valid:
3am AST Apr 9, 2026-6pm AST Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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