National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

Mostly Cloudy

26°C

79°F

Humidity 79%
Wind Speed SE 9 km/h
Barometer 30.00 in
Dewpoint 22°C (72°F)
Visibility 16 km
Heat Index28°C (82°F)
Last update 20 May 2:35 am AST
Extended Forecast for

Guanica PR

  • Overnight

    Overnight: Scattered showers. Mostly cloudy, with a low around 23. East wind around 13 km/h. Chance of precipitation is 40%.

    Low: 23 °C

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly before 3pm. Partly sunny, with a high near 33. East southeast wind 21 to 26 km/h increasing to 30 to 35 km/h in the afternoon. Winds could gust as high as 60 km/h. Chance of precipitation is 50%. New precipitation amounts between 5 and 7.5 mm possible.

    High: 33 °C

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers between 9pm and midnight. Partly cloudy, with a low around 23. East wind 21 to 26 km/h decreasing to 14 to 19 km/h after midnight. Winds could gust as high as 42 km/h. Chance of precipitation is 20%.

    Low: 23 °C

    Isolated
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Scattered showers, mainly before 9am. Mostly sunny, with a high near 33. East southeast wind 23 to 32 km/h, with gusts as high as 55 km/h. Chance of precipitation is 30%.

    High: 33 °C

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 23. East wind 19 to 24 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 10%.

    Low: 23 °C

    Isolated
    Showers

  • Friday

    Friday: Scattered showers, mainly after noon. Mostly sunny, with a high near 33. East southeast wind 21 to 29 km/h, with gusts as high as 50 km/h. Chance of precipitation is 30%.

    High: 33 °C

    Scattered
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23. East wind 13 to 18 km/h, with gusts as high as 32 km/h.

    Low: 23 °C

    Partly Cloudy

  • Saturday

    Saturday: Scattered showers after noon. Mostly sunny, with a high near 33. East southeast wind 13 to 18 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 50 km/h. Chance of precipitation is 30%.

    High: 33 °C

    Sunny then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. East wind 13 to 21 km/h, with gusts as high as 34 km/h.

    Low: 23 °C

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 23. East wind around 13 km/h. Chance of precipitation is 40%.
Wednesday
Scattered showers, mainly before 3pm. Partly sunny, with a high near 33. East southeast wind 21 to 26 km/h increasing to 30 to 35 km/h in the afternoon. Winds could gust as high as 60 km/h. Chance of precipitation is 50%. New precipitation amounts between 5 and 7.5 mm possible.
Wednesday Night
Isolated showers between 9pm and midnight. Partly cloudy, with a low around 23. East wind 21 to 26 km/h decreasing to 14 to 19 km/h after midnight. Winds could gust as high as 42 km/h. Chance of precipitation is 20%.
Thursday
Scattered showers, mainly before 9am. Mostly sunny, with a high near 33. East southeast wind 23 to 32 km/h, with gusts as high as 55 km/h. Chance of precipitation is 30%.
Thursday Night
Isolated showers. Partly cloudy, with a low around 23. East wind 19 to 24 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 10%.
Friday
Scattered showers, mainly after noon. Mostly sunny, with a high near 33. East southeast wind 21 to 29 km/h, with gusts as high as 50 km/h. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 23. East wind 13 to 18 km/h, with gusts as high as 32 km/h.
Saturday
Scattered showers after noon. Mostly sunny, with a high near 33. East southeast wind 13 to 18 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 50 km/h. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 23. East wind 13 to 21 km/h, with gusts as high as 34 km/h.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 33. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 23.
Memorial Day
Scattered showers. Mostly sunny, with a high near 33. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Scattered showers. Mostly sunny, with a high near 33. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Guanica PR
 17.97°N 66.92°W (Elev. 16 m)
Last Update:
2:15 am AST May 20, 2026
Forecast Valid:
3am AST May 20, 2026-6pm AST May 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation