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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

    • Saturday

      Saturday:E wind 8 to 16 kt. Scattered showers, mainly before 9am. Seas 3 to 4 ft.

      High: 85 °F

      E 16kt
      3-4ft

    • Saturday Night

      Saturday Night:E wind around 11 kt. Scattered showers before midnight, then scattered showers and thunderstorms between midnight and 3am, then scattered showers after 3am. Seas around 4 ft.

      Low: 82 °F

      E 11kt
      4ft

    • Sunday

      Sunday:ENE wind 11 to 13 kt. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 9am. Seas around 4 ft.

      High: 85 °F

      ENE 13kt
      4ft

    • Sunday Night

      Sunday Night:SE wind 5 to 13 kt. Scattered showers, then showers likely and possibly a thunderstorm after midnight. Seas around 5 ft.

      Low: 81 °F

      SE 13kt
      5ft

    • Monday

      Monday:ESE wind 6 to 11 kt. Showers likely and possibly a thunderstorm. Seas around 5 ft.

      High: 85 °F

      ESE 11kt
      5ft

    • Monday Night

      Monday Night:ESE wind around 6 kt. Scattered showers, mainly after midnight. Seas 3 to 4 ft.

      Low: 82 °F

      ESE 6kt
      3-4ft

    • Tuesday

      Tuesday:E wind 8 to 11 kt. Scattered showers. Seas around 3 ft.

      High: 85 °F

      E 11kt
      3ft

    • Tuesday Night

      Tuesday Night:ESE wind 5 to 7 kt. Scattered showers. Seas 2 to 3 ft.

      Low: 82 °F

      ESE 7kt
      2-3ft

    • Wednesday

      Wednesday:E wind 6 to 13 kt. Scattered showers. Seas around 2 ft.

      High: 85 °F

      E 13kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:48 pm EDT Aug 28, 2026
Forecast Valid: 1am EDT Aug 29, 2026-6pm EDT Sep 4, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Saturday
E wind 8 to 16 kt. Scattered showers, mainly before 9am. Seas 3 to 4 ft.
Saturday Night
E wind around 11 kt. Scattered showers before midnight, then scattered showers and thunderstorms between midnight and 3am, then scattered showers after 3am. Seas around 4 ft.
Sunday
ENE wind 11 to 13 kt. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 9am. Seas around 4 ft.
Sunday Night
SE wind 5 to 13 kt. Scattered showers, then showers likely and possibly a thunderstorm after midnight. Seas around 5 ft.
Monday
ESE wind 6 to 11 kt. Showers likely and possibly a thunderstorm. Seas around 5 ft.
Monday Night
ESE wind around 6 kt. Scattered showers, mainly after midnight. Seas 3 to 4 ft.
Tuesday
E wind 8 to 11 kt. Scattered showers. Seas around 3 ft.
Tuesday Night
ESE wind 5 to 7 kt. Scattered showers. Seas 2 to 3 ft.
Wednesday
E wind 6 to 13 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: 18.45°N 66.1°W
Last Update: 3:48 pm EDT Aug 28, 2026
Forecast Valid: 1am EDT Aug 29, 2026-6pm EDT Sep 4, 2026
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