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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:ESE wind around 10 kt. Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm.   Seas around 5 ft.

      High: 84 °F

      ESE 10kt
      5ft

    • Tonight

      Tonight:ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms.   Seas around 4 ft.

      Low: 82 °F

      ESE 7kt⇓
      4ft

    • Tuesday

      Tuesday:ESE wind 7 to 14 kt. Scattered showers before 9am, then scattered showers and thunderstorms between 9am and noon, then scattered showers after noon.   Seas around 3 ft.

      High: 85 °F

      ESE 14kt
      3ft

    • Tuesday Night

      Tuesday Night:ESE wind 6 to 9 kt. Scattered showers, mainly after 9pm.   Seas 2 to 3 ft.

      Low: 82 °F

      ESE 9kt
      2-3ft

    • Wednesday

      Wednesday:E wind 6 to 14 kt. Scattered showers.   Seas around 2 ft.

      High: 85 °F

      E 14kt
      2ft

    • Wednesday Night

      Wednesday Night:E wind 6 to 9 kt. Isolated showers.   Seas around 2 ft.

      Low: 82 °F

      E 9kt
      2ft

    • Thursday

      Thursday:ENE wind 7 to 13 kt. Scattered showers after noon.   Seas around 2 ft.

      High: 85 °F

      ENE 13kt
      2ft

    • Thursday Night

      Thursday Night:E wind 6 to 9 kt. Mostly clear. Seas around 2 ft.

      Low: 82 °F

      E 9kt
      2ft

    • Friday

      Friday:E wind 6 to 14 kt. Scattered showers.   Seas around 2 ft.

      High: 84 °F

      E 14kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:22 am EDT Aug 31, 2026
Forecast Valid: 11am EDT Aug 31, 2026-6pm EDT Sep 6, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON AST TODAY...

Today
ESE wind around 10 kt. Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Seas around 5 ft.
Tonight
ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms. Seas around 4 ft.
Tuesday
ESE wind 7 to 14 kt. Scattered showers before 9am, then scattered showers and thunderstorms between 9am and noon, then scattered showers after noon. Seas around 3 ft.
Tuesday Night
ESE wind 6 to 9 kt. Scattered showers, mainly after 9pm. Seas 2 to 3 ft.
Wednesday
E wind 6 to 14 kt. Scattered showers. Seas around 2 ft.
Wednesday Night
E wind 6 to 9 kt. Isolated showers. Seas around 2 ft.
Thursday
ENE wind 7 to 13 kt. Scattered showers after noon. Seas around 2 ft.
Thursday Night
E wind 6 to 9 kt. Mostly clear. Seas around 2 ft.
Friday
E wind 6 to 14 kt. Scattered showers. Seas around 2 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: 18.45°N 66.1°W
Last Update: 10:22 am EDT Aug 31, 2026
Forecast Valid: 11am EDT Aug 31, 2026-6pm EDT Sep 6, 2026
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