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San Juan, PR Local Forecast Office

6NM NNW Mayaguez PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming NW 5 to 7 kt in the afternoon. Showers likely and possibly a thunderstorm, mainly after 3pm.   Seas 1 ft or less.

      High: 92 °F

      ⇑NW 7kt
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm.   Seas 1 ft or less.

      Low: 76 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm after noon.   Seas 1 ft or less.

      High: 92 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms before midnight.   Seas 1 ft or less.

      Low: 75 °F

      ENE 7kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Scattered showers and thunderstorms after noon.   Seas 1 ft or less.

      High: 92 °F

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Scattered showers before midnight.   Seas 1 ft or less.

      Low: 75 °F

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds 5 kt or less. Showers likely after noon.   Seas 1 ft or less.

      High: 92 °F

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds less than 5 kt becoming E around 6 kt after midnight. Clear. Seas 1 ft or less.

      Low: 76 °F

      ⇑E 6kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming NNW 5 to 7 kt in the morning. Scattered showers.   Seas 1 ft or less.

      High: 92 °F

      ⇑NNW 7kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:27 am EDT Sep 18, 2026
Forecast Valid: 8am EDT Sep 18, 2026-6pm EDT Sep 24, 2026

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Detailed Forecast


Today
Variable winds less than 5 kt becoming NW 5 to 7 kt in the afternoon. Showers likely and possibly a thunderstorm, mainly after 3pm. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm after noon. Seas 1 ft or less.
Saturday Night
ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms before midnight. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Scattered showers and thunderstorms after noon. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Scattered showers before midnight. Seas 1 ft or less.
Monday
Variable winds 5 kt or less. Showers likely after noon. Seas 1 ft or less.
Monday Night
Variable winds less than 5 kt becoming E around 6 kt after midnight. Clear. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming NNW 5 to 7 kt in the morning. Scattered showers. Seas 1 ft or less.

Winds and seas higher in and near thunderstorms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 18.29°N 67.19°W
Last Update: 4:27 am EDT Sep 18, 2026
Forecast Valid: 8am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
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