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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SE wind around 6 kt. Scattered showers, mainly after 3am.   Seas around 2 ft.

      Low: 83 °F

      SE 6kt
      2ft

    • Sunday

      Sunday:E wind 5 to 12 kt. Scattered showers, with thunderstorms also possible after 3pm.   Seas around 2 ft.

      High: 85 °F

      E 12kt
      2ft

    • Sunday Night

      Sunday Night:SSE wind 5 to 7 kt. Scattered showers.   Seas around 2 ft.

      Low: 83 °F

      SSE 7kt
      2ft

    • Monday

      Monday:E wind 5 to 13 kt. Isolated showers, then scattered showers and thunderstorms after noon.   Seas around 2 ft.

      High: 85 °F

      E 13kt
      2ft

    • Monday Night

      Monday Night:ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly before midnight.   Seas around 2 ft.

      Low: 83 °F

      ESE 7kt⇓
      2ft

    • Tuesday

      Tuesday:E wind 7 to 12 kt. Scattered showers, mainly after noon.   Seas around 2 ft.

      High: 85 °F

      E 12kt
      2ft

    • Tuesday Night

      Tuesday Night:ESE wind 6 to 9 kt. Mostly clear. Seas around 2 ft.

      Low: 83 °F

      ESE 9kt
      2ft

    • Wednesday

      Wednesday:E wind 9 to 14 kt. Scattered showers.   Seas around 2 ft.

      High: 85 °F

      E 14kt
      2ft

    • Wednesday Night

      Wednesday Night:ESE wind 5 to 8 kt. Partly cloudy. Seas around 2 ft.

      Low: 83 °F

      ESE 8kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:35 pm EDT Sep 19, 2026
Forecast Valid: 10pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026

View Nearby Observations

Detailed Forecast


Tonight
SE wind around 6 kt. Scattered showers, mainly after 3am. Seas around 2 ft.
Sunday
E wind 5 to 12 kt. Scattered showers, with thunderstorms also possible after 3pm. Seas around 2 ft.
Sunday Night
SSE wind 5 to 7 kt. Scattered showers. Seas around 2 ft.
Monday
E wind 5 to 13 kt. Isolated showers, then scattered showers and thunderstorms after noon. Seas around 2 ft.
Monday Night
ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly before midnight. Seas around 2 ft.
Tuesday
E wind 7 to 12 kt. Scattered showers, mainly after noon. Seas around 2 ft.
Tuesday Night
ESE wind 6 to 9 kt. Mostly clear. Seas around 2 ft.
Wednesday
E wind 9 to 14 kt. Scattered showers. Seas around 2 ft.
Wednesday Night
ESE wind 5 to 8 kt. Partly cloudy. 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: 8:35 pm EDT Sep 19, 2026
Forecast Valid: 10pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026
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