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San Juan, PR Local Forecast Office

31NM ENE Charlotte Amalie VI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:E wind around 17 kt, with gusts as high as 23 kt. Scattered showers, mainly after midnight.   Seas around 3 ft.

      Low: 82 °F

      E 17kt
      3ft

    • Saturday

      Saturday:E wind around 17 kt, with gusts as high as 23 kt. Isolated showers after noon.   Seas around 4 ft.

      High: 85 °F

      E 17kt
      4ft

    • Saturday Night

      Saturday Night:ENE wind 18 to 20 kt, with gusts as high as 27 kt. Scattered showers, with thunderstorms also possible after 3am.   Seas around 4 ft.

      Low: 82 °F

      ENE 20kt
      4ft

    • Sunday

      Sunday:ENE wind 15 to 25 kt becoming ESE in the afternoon. Winds could gust as high as 34 kt. Showers likely and possibly a thunderstorm.   Seas 4 to 6 ft.

      High: 85 °F

      E 25kt
      4-6ft

    • Sunday Night

      Sunday Night:ESE wind 13 to 21 kt, with gusts as high as 28 kt. Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight.   Seas around 5 ft.

      Low: 81 °F

      ESE 21kt
      5ft

    • Monday

      Monday:ESE wind 10 to 18 kt, with gusts as high as 24 kt. Showers likely and possibly a thunderstorm before noon, then scattered showers.   Seas 3 to 4 ft.

      High: 85 °F

      ESE 18kt
      3-4ft

    • Monday Night

      Monday Night:E wind 8 to 14 kt, with gusts as high as 20 kt. Scattered showers before midnight.   Seas around 3 ft.

      Low: 82 °F

      E 14kt
      3ft

    • Tuesday

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

      High: 85 °F

      E 15kt
      3ft

    • Tuesday Night

      Tuesday Night:E wind around 14 kt. Scattered showers.   Seas around 2 ft.

      Low: 82 °F

      E 14kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:48 pm EDT Aug 28, 2026
Forecast Valid: 6pm EDT Aug 28, 2026-6pm EDT Sep 4, 2026

View Nearby Observations

Detailed Forecast


Tonight
E wind around 17 kt, with gusts as high as 23 kt. Scattered showers, mainly after midnight. Seas around 3 ft.
Saturday
E wind around 17 kt, with gusts as high as 23 kt. Isolated showers after noon. Seas around 4 ft.
Saturday Night
ENE wind 18 to 20 kt, with gusts as high as 27 kt. Scattered showers, with thunderstorms also possible after 3am. Seas around 4 ft.
Sunday
ENE wind 15 to 25 kt becoming ESE in the afternoon. Winds could gust as high as 34 kt. Showers likely and possibly a thunderstorm. Seas 4 to 6 ft.
Sunday Night
ESE wind 13 to 21 kt, with gusts as high as 28 kt. Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight. Seas around 5 ft.
Monday
ESE wind 10 to 18 kt, with gusts as high as 24 kt. Showers likely and possibly a thunderstorm before noon, then scattered showers. Seas 3 to 4 ft.
Monday Night
E wind 8 to 14 kt, with gusts as high as 20 kt. Scattered showers before midnight. Seas around 3 ft.
Tuesday
E wind around 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 3 ft.
Tuesday Night
E wind around 14 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: 18.48°N 64.4°W
Last Update: 3:48 pm EDT Aug 28, 2026
Forecast Valid: 6pm EDT Aug 28, 2026-6pm EDT Sep 4, 2026
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