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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

81°F

27°C

Humidity 79%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Aug 3:56 am AST
Extended Forecast for

Emajagua PR

Heat Advisory August 17, 10:00am until August 17, 05:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Isolated showers. Partly cloudy, with a low around 80. East northeast wind around 13 mph. Chance of precipitation is 10%.

    Low: 80 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers. Mostly sunny, with a high near 89. East wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 89 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Isolated showers. Partly cloudy, with a low around 79. East northeast wind around 11 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers after 9am. Mostly sunny, with a high near 89. Heat index values as high as 102. East wind 11 to 14 mph. Chance of precipitation is 20%.

    High: 89 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers. Partly cloudy, with a low around 79. East northeast wind 11 to 13 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 88. East southeast wind 9 to 11 mph. Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 79. East wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Partly sunny, with a high near 89. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Scattered showers. Partly cloudy, with a low around 80. East northeast wind around 14 mph. Chance of precipitation is 30%.

    Low: 80 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 80. East northeast wind around 13 mph. Chance of precipitation is 10%.
Monday
Isolated showers. Mostly sunny, with a high near 89. East wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Isolated showers. Partly cloudy, with a low around 79. East northeast wind around 11 mph. Chance of precipitation is 20%.
Tuesday
Isolated showers after 9am. Mostly sunny, with a high near 89. Heat index values as high as 102. East wind 11 to 14 mph. Chance of precipitation is 20%.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 79. East northeast wind 11 to 13 mph. Chance of precipitation is 20%.
Wednesday
Scattered showers. Partly sunny, with a high near 88. East southeast wind 9 to 11 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 79. East wind 7 to 10 mph. Chance of precipitation is 40%.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 89. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 80. East northeast wind around 14 mph. Chance of precipitation is 30%.
Friday
Scattered showers after noon. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 79. Chance of precipitation is 40%.
Saturday
Scattered showers. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 80.
Sunday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Emajagua PR
 18°N 65.87°W (Elev. 0 ft)
Last Update:
3:52 am AST Aug 17, 2026
Forecast Valid:
4am AST Aug 17, 2026-6pm AST Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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