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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

    • Today

      Today:E wind 7 to 12 kt. Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Seas around 4 ft.

      High: 83 °F

      E 12kt
      4ft

    • Tonight

      Tonight:ESE wind 6 to 12 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Seas around 4 ft.

      Low: 74 °F

      ESE 12kt
      4ft

    • Saturday

      Saturday:ENE wind 8 to 10 kt. Scattered showers and thunderstorms. Seas around 4 ft.

      High: 81 °F

      ENE 10kt
      4ft

    • Saturday Night

      Saturday Night:ENE wind around 8 kt. Scattered showers, mainly before midnight. Seas around 3 ft.

      Low: 75 °F

      ENE 8kt
      3ft

    • Sunday

      Sunday:ENE wind 9 to 11 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.

      High: 82 °F

      ENE 11kt
      3ft

    • Sunday Night

      Sunday Night:NE wind around 12 kt. Isolated showers. Seas 3 to 4 ft.

      Low: 74 °F

      NE 12kt
      3-4ft

    • Monday

      Monday:NE wind around 11 kt. Scattered showers. Seas around 4 ft.

      High: 82 °F

      NE 11kt
      4ft

    • Monday Night

      Monday Night:ENE wind around 11 kt. Showers likely. Seas 4 to 5 ft.

      Low: 74 °F

      ENE 11kt
      4-5ft

    • Tuesday

      Tuesday:ENE wind 12 to 14 kt. Scattered showers. Seas 6 to 7 ft.

      High: 81 °F

      ENE 14kt
      6-7ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:07 am EDT Mar 27, 2026
Forecast Valid: 8am EDT Mar 27, 2026-6pm EDT Apr 2, 2026

View Nearby Observations

Detailed Forecast


Today
E wind 7 to 12 kt. Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Seas around 4 ft.
Tonight
ESE wind 6 to 12 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Seas around 4 ft.
Saturday
ENE wind 8 to 10 kt. Scattered showers and thunderstorms. Seas around 4 ft.
Saturday Night
ENE wind around 8 kt. Scattered showers, mainly before midnight. Seas around 3 ft.
Sunday
ENE wind 9 to 11 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.
Sunday Night
NE wind around 12 kt. Isolated showers. Seas 3 to 4 ft.
Monday
NE wind around 11 kt. Scattered showers. Seas around 4 ft.
Monday Night
ENE wind around 11 kt. Showers likely. Seas 4 to 5 ft.
Tuesday
ENE wind 12 to 14 kt. Scattered showers. Seas 6 to 7 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: 4:07 am EDT Mar 27, 2026
Forecast Valid: 8am EDT Mar 27, 2026-6pm EDT Apr 2, 2026
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