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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:ENE wind 16 to 18 kt. Scattered showers, mainly after 3pm.  Widespread haze before 3pm.  Seas around 5 ft.

      High: 84 °F

      ENE 18kt
      5ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:ENE wind 11 to 13 kt. Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight.   Seas around 5 ft.

      Low: 83 °F

      ENE 13kt
      5ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday

      Sunday:E wind 12 to 14 kt. Scattered showers, mainly before noon.   Seas around 5 ft.

      High: 84 °F

      E 14kt
      5ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:ENE wind around 11 kt. Isolated showers.   Seas 4 to 5 ft.

      Low: 83 °F

      ENE 11kt
      4-5ft

    • Monday

      Monday:E wind 10 to 12 kt. Isolated showers before noon.   Seas 3 to 4 ft.

      High: 84 °F

      E 12kt
      3-4ft

    • Monday Night

      Monday Night:ENE wind 7 to 9 kt. Isolated showers.   Seas around 3 ft.

      Low: 83 °F

      ENE 9kt
      3ft

    • Tuesday

      Tuesday:E wind 8 to 12 kt. Sunny. Seas around 2 ft.

      High: 84 °F

      E 12kt
      2ft

    • Tuesday Night

      Tuesday Night:ENE wind around 8 kt. Partly cloudy. Seas around 2 ft.

      Low: 83 °F

      ENE 8kt
      2ft

    • Wednesday

      Wednesday:E wind 9 to 11 kt. Scattered showers.   Seas around 2 ft.

      High: 84 °F

      E 11kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:06 am EDT Aug 15, 2026
Forecast Valid: 1pm EDT Aug 15, 2026-6pm EDT Aug 21, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

This Afternoon
ENE wind 16 to 18 kt. Scattered showers, mainly after 3pm. Widespread haze before 3pm. Seas around 5 ft.
Tonight
ENE wind 11 to 13 kt. Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Seas around 5 ft.
Sunday
E wind 12 to 14 kt. Scattered showers, mainly before noon. Seas around 5 ft.
Sunday Night
ENE wind around 11 kt. Isolated showers. Seas 4 to 5 ft.
Monday
E wind 10 to 12 kt. Isolated showers before noon. Seas 3 to 4 ft.
Monday Night
ENE wind 7 to 9 kt. Isolated showers. Seas around 3 ft.
Tuesday
E wind 8 to 12 kt. Sunny. Seas around 2 ft.
Tuesday Night
ENE wind around 8 kt. Partly cloudy. Seas around 2 ft.
Wednesday
E wind 9 to 11 kt. Scattered showers. Seas around 2 ft.

*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: 17.97°N 65.99°W
Last Update: 4:06 am EDT Aug 15, 2026
Forecast Valid: 1pm EDT Aug 15, 2026-6pm EDT Aug 21, 2026
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