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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

    • Today

      Today:ENE wind 5 to 9 kt. Scattered showers and thunderstorms before noon, then scattered showers between noon and 3pm, then scattered showers and thunderstorms after 3pm. Seas around 3 ft.

      High: 81 °F

      ENE 9kt
      3ft

    • Tonight

      Tonight:ENE wind around 7 kt. Scattered showers. Seas around 3 ft.

      Low: 75 °F

      ENE 7kt
      3ft

    • Sunday

      Sunday:NE wind 8 to 12 kt. Scattered showers, with thunderstorms also possible after 3pm. Seas around 3 ft.

      High: 82 °F

      NE 12kt
      3ft

    • Sunday Night

      Sunday Night:NE wind 10 to 12 kt. Isolated showers. Seas around 4 ft.

      Low: 74 °F

      NE 12kt
      4ft

    • Monday

      Monday:ENE wind 11 to 14 kt. Scattered showers. Seas around 4 ft.

      High: 82 °F

      ENE 14kt
      4ft

    • Monday Night

      Monday Night:ENE wind 10 to 12 kt. Showers likely and possibly a thunderstorm. Seas 4 to 5 ft.

      Low: 74 °F

      ENE 12kt
      4-5ft

    • Tuesday

      Tuesday:ENE wind around 12 kt. Scattered showers. Seas 6 to 7 ft.

      High: 81 °F

      ENE 12kt
      6-7ft

    • Tuesday Night

      Tuesday Night:ENE wind 5 to 15 kt, with gusts as high as 21 kt. Showers likely. Seas 7 to 8 ft.

      Low: 73 °F

      ENE 15kt
      7-8ft

    • Wednesday

      Wednesday:ENE wind 12 to 14 kt. Showers likely. Seas around 8 ft.

      High: 82 °F

      ENE 14kt
      8ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:48 am EDT Mar 28, 2026
Forecast Valid: 9am EDT Mar 28, 2026-6pm EDT Apr 3, 2026

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Detailed Forecast


Today
ENE wind 5 to 9 kt. Scattered showers and thunderstorms before noon, then scattered showers between noon and 3pm, then scattered showers and thunderstorms after 3pm. Seas around 3 ft.
Tonight
ENE wind around 7 kt. Scattered showers. Seas around 3 ft.
Sunday
NE wind 8 to 12 kt. Scattered showers, with thunderstorms also possible after 3pm. Seas around 3 ft.
Sunday Night
NE wind 10 to 12 kt. Isolated showers. Seas around 4 ft.
Monday
ENE wind 11 to 14 kt. Scattered showers. Seas around 4 ft.
Monday Night
ENE wind 10 to 12 kt. Showers likely and possibly a thunderstorm. Seas 4 to 5 ft.
Tuesday
ENE wind around 12 kt. Scattered showers. Seas 6 to 7 ft.
Tuesday Night
ENE wind 5 to 15 kt, with gusts as high as 21 kt. Showers likely. Seas 7 to 8 ft.
Wednesday
ENE wind 12 to 14 kt. Showers likely. Seas around 8 ft.

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: 18.46°N 66.13°W
Last Update: 3:48 am EDT Mar 28, 2026
Forecast Valid: 9am EDT Mar 28, 2026-6pm EDT Apr 3, 2026
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