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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:ESE wind 10 to 15 kt, with gusts as high as 21 kt. Isolated showers before noon, then showers likely and possibly a thunderstorm after 3pm.   Seas around 5 ft.

      High: 81 °F

      ESE 15kt
      5ft

    • Tonight

      Tonight:ESE wind 7 to 9 kt. Scattered showers, mainly after midnight.   Seas around 4 ft.

      Low: 80 °F

      ESE 9kt
      4ft

    • Wednesday

      Wednesday:ESE wind 8 to 13 kt. Scattered showers before 9am, then scattered showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon.   Seas 3 to 4 ft.

      High: 81 °F

      ESE 13kt
      3-4ft

    • Wednesday Night

      Wednesday Night:ESE wind around 9 kt. Scattered showers.   Seas around 4 ft.

      Low: 80 °F

      ESE 9kt
      4ft

    • Thursday

      Thursday:E wind 9 to 14 kt, with gusts as high as 20 kt. Scattered showers, mainly after noon.   Seas around 4 ft.

      High: 81 °F

      E 14kt
      4ft

    • Thursday Night

      Thursday Night:E wind 7 to 10 kt. Scattered showers, mainly after midnight.   Seas around 4 ft.

      Low: 80 °F

      E 10kt
      4ft

    • Friday

      Friday:E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers after noon.   Seas around 4 ft.

      High: 81 °F

      E 15kt
      4ft

    • Friday Night

      Friday Night:ESE wind 6 to 9 kt. Scattered showers.   Seas around 4 ft.

      Low: 80 °F

      ESE 9kt
      4ft

    • Saturday

      Saturday:E wind 8 to 14 kt. Mostly sunny. Seas 4 to 5 ft.

      High: 81 °F

      E 14kt
      4-5ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:37 am EDT Apr 7, 2026
Forecast Valid: 10am EDT Apr 7, 2026-6pm EDT Apr 13, 2026

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Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today
ESE wind 10 to 15 kt, with gusts as high as 21 kt. Isolated showers before noon, then showers likely and possibly a thunderstorm after 3pm. Seas around 5 ft.
Tonight
ESE wind 7 to 9 kt. Scattered showers, mainly after midnight. Seas around 4 ft.
Wednesday
ESE wind 8 to 13 kt. Scattered showers before 9am, then scattered showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Seas 3 to 4 ft.
Wednesday Night
ESE wind around 9 kt. Scattered showers. Seas around 4 ft.
Thursday
E wind 9 to 14 kt, with gusts as high as 20 kt. Scattered showers, mainly after noon. Seas around 4 ft.
Thursday Night
E wind 7 to 10 kt. Scattered showers, mainly after midnight. Seas around 4 ft.
Friday
E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers after noon. Seas around 4 ft.
Friday Night
ESE wind 6 to 9 kt. Scattered showers. Seas around 4 ft.
Saturday
E wind 8 to 14 kt. Mostly sunny. Seas 4 to 5 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: 2:37 am EDT Apr 7, 2026
Forecast Valid: 10am EDT Apr 7, 2026-6pm EDT Apr 13, 2026
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