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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then scattered showers and thunderstorms after 5pm.   Seas around 3 ft.

      High: 83 °F

      Light Wind
      3ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Scattered showers before 2am, then isolated showers after 5am.   Seas around 4 ft.

      Low: 82 °F

      Light Wind
      4ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Isolated showers before 8am, then scattered showers and thunderstorms between 8am and 11am, then showers likely and possibly a thunderstorm after 11am.   Seas around 4 ft.

      High: 82 °F

      Light Wind
      4ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Scattered showers.   Seas around 4 ft.

      Low: 82 °F

      Light Wind
      4ft

    • Monday

      Monday:Variable winds less than 5 kt becoming NNE 5 to 7 kt in the afternoon. Isolated showers, then showers likely and possibly a thunderstorm after 11am.   Seas around 3 ft.

      High: 84 °F

      ⇑NNE 7kt
      3ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Scattered showers, mainly before 11pm.   Seas around 3 ft.

      Low: 82 °F

      Light Wind
      3ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming E around 6 kt in the morning. Scattered showers after 11am.   Seas around 3 ft.

      High: 84 °F

      ⇑E 6kt
      3ft

    • Tuesday Night

      Tuesday Night:SE wind around 6 kt. Partly cloudy. Seas around 3 ft.

      Low: 82 °F

      SE 6kt
      3ft

    • Veterans Day

      Veterans Day:E wind 6 to 10 kt. Showers likely.   Seas around 3 ft.

      High: 84 °F

      E 10kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:33 am EST Nov 7, 2026
Forecast Valid: 7am EST Nov 7, 2026-6pm EST Nov 13, 2026

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Detailed Forecast


Today
Variable winds 5 kt or less. Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then scattered showers and thunderstorms after 5pm. Seas around 3 ft.
Tonight
Variable winds 5 kt or less. Scattered showers before 2am, then isolated showers after 5am. Seas around 4 ft.
Sunday
Variable winds 5 kt or less. Isolated showers before 8am, then scattered showers and thunderstorms between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Seas around 4 ft.
Sunday Night
Variable winds 5 kt or less. Scattered showers. Seas around 4 ft.
Monday
Variable winds less than 5 kt becoming NNE 5 to 7 kt in the afternoon. Isolated showers, then showers likely and possibly a thunderstorm after 11am. Seas around 3 ft.
Monday Night
Variable winds 5 kt or less. Scattered showers, mainly before 11pm. Seas around 3 ft.
Tuesday
Variable winds less than 5 kt becoming E around 6 kt in the morning. Scattered showers after 11am. Seas around 3 ft.
Tuesday Night
SE wind around 6 kt. Partly cloudy. Seas around 3 ft.
Veterans Day
E wind 6 to 10 kt. Showers likely. Seas around 3 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: 2:33 am EST Nov 7, 2026
Forecast Valid: 7am EST Nov 7, 2026-6pm EST Nov 13, 2026
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