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San Juan, PR Local Forecast Office

3NM W Charlotte Amalie VI

Marine Point Forecast

[NOTICE]
    • Today

      Today:ESE wind around 12 kt. Isolated showers.   Seas 1 ft or less.

      High: 90 °F

      ESE 12kt
      < 1ft

    • Tonight

      Tonight:E wind 11 to 13 kt. Scattered showers, mainly after 3am.   Seas 1 ft or less.

      Low: 81 °F

      E 13kt
      < 1ft

    • Saturday

      Saturday:E wind 9 to 11 kt. Isolated showers.   Seas 1 ft or less.

      High: 92 °F

      E 11kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind around 11 kt. Scattered showers, mainly before midnight.   Seas 1 ft or less.

      Low: 81 °F

      E 11kt
      < 1ft

    • Sunday

      Sunday:ESE wind around 10 kt. Scattered showers.   Seas 1 ft or less.

      High: 92 °F

      ESE 10kt
      < 1ft

    • Sunday Night

      Sunday Night:E wind around 11 kt. Scattered showers, mainly after midnight.   Seas 1 ft or less.

      Low: 81 °F

      E 11kt
      < 1ft

    • Monday

      Monday:ESE wind around 13 kt. Scattered showers before noon.   Seas 1 ft or less.

      High: 92 °F

      ESE 13kt
      < 1ft

    • Monday Night

      Monday Night:E wind around 12 kt. Scattered showers.   Seas 1 ft or less.

      Low: 81 °F

      E 12kt
      < 1ft

    • Tuesday

      Tuesday:E wind 13 to 15 kt. Mostly sunny. Seas 1 ft or less.

      High: 92 °F

      E 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:27 am EDT Sep 18, 2026
Forecast Valid: 10am EDT Sep 18, 2026-6pm EDT Sep 24, 2026

View Nearby Observations

Detailed Forecast


Today
ESE wind around 12 kt. Isolated showers. Seas 1 ft or less.
Tonight
E wind 11 to 13 kt. Scattered showers, mainly after 3am. Seas 1 ft or less.
Saturday
E wind 9 to 11 kt. Isolated showers. Seas 1 ft or less.
Saturday Night
E wind around 11 kt. Scattered showers, mainly before midnight. Seas 1 ft or less.
Sunday
ESE wind around 10 kt. Scattered showers. Seas 1 ft or less.
Sunday Night
E wind around 11 kt. Scattered showers, mainly after midnight. Seas 1 ft or less.
Monday
ESE wind around 13 kt. Scattered showers before noon. Seas 1 ft or less.
Monday Night
E wind around 12 kt. Scattered showers. Seas 1 ft or less.
Tuesday
E wind 13 to 15 kt. Mostly sunny. Seas 1 ft or less.

*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: 18.35°N 64.98°W
Last Update: 4:27 am EDT Sep 18, 2026
Forecast Valid: 10am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
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