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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

    • Tuesday

      Tuesday:E wind 8 to 15 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.

      High: 85 °F

      E 15kt
      3ft

    • Tuesday Night

      Tuesday Night:E wind 8 to 10 kt. Scattered showers, mainly before 3am. Seas around 3 ft.

      Low: 82 °F

      E 10kt
      3ft

    • Wednesday

      Wednesday:E wind 9 to 14 kt, with gusts as high as 20 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

      E 14kt
      3ft

    • Wednesday Night

      Wednesday Night:E wind around 9 kt. Scattered showers. Seas around 3 ft.

      Low: 82 °F

      E 9kt
      3ft

    • Thursday

      Thursday:E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 3 ft.

      High: 85 °F

      E 15kt
      3ft

    • Thursday Night

      Thursday Night:ESE wind 7 to 9 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.

      Low: 82 °F

      ESE 9kt
      3ft

    • Friday

      Friday:E wind 7 to 11 kt. Mostly sunny. Seas around 3 ft.

      High: 85 °F

      E 11kt
      3ft

    • Friday Night

      Friday Night:ESE wind 5 to 8 kt. Partly cloudy. Seas around 3 ft.

      Low: 82 °F

      ESE 8kt
      3ft

    • Saturday

      Saturday:ENE wind 6 to 12 kt. Scattered showers. Seas around 2 ft.

      High: 85 °F

      ENE 12kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:08 pm EDT Sep 14, 2026
Forecast Valid: 1am EDT Sep 15, 2026-6pm EDT Sep 21, 2026

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Detailed Forecast


Tuesday
E wind 8 to 15 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.
Tuesday Night
E wind 8 to 10 kt. Scattered showers, mainly before 3am. Seas around 3 ft.
Wednesday
E wind 9 to 14 kt, with gusts as high as 20 kt. Scattered showers before 9am, then scattered showers and thunderstorms between 9am and noon, then scattered showers after noon. Seas around 3 ft.
Wednesday Night
E wind around 9 kt. Scattered showers. Seas around 3 ft.
Thursday
E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 3 ft.
Thursday Night
ESE wind 7 to 9 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.
Friday
E wind 7 to 11 kt. Mostly sunny. Seas around 3 ft.
Friday Night
ESE wind 5 to 8 kt. Partly cloudy. Seas around 3 ft.
Saturday
ENE wind 6 to 12 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: 8:08 pm EDT Sep 14, 2026
Forecast Valid: 1am EDT Sep 15, 2026-6pm EDT Sep 21, 2026
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