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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:E wind around 13 kt. Scattered showers and thunderstorms.   Seas around 2 ft.

      High: 85 °F

      E 13kt
      2ft

    • Tonight

      Tonight:SE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms.   Seas around 2 ft.

      Low: 83 °F

      SE 6kt⇓
      2ft

    • Tuesday

      Tuesday:E wind 5 to 13 kt. Scattered showers, with thunderstorms also possible after noon.   Seas around 2 ft.

      High: 85 °F

      E 13kt
      2ft

    • Tuesday Night

      Tuesday Night:ESE wind 5 to 8 kt. Scattered showers.   Seas around 2 ft.

      Low: 83 °F

      ESE 8kt
      2ft

    • Wednesday

      Wednesday:E wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers.   Seas around 2 ft.

      High: 85 °F

      E 15kt
      2ft

    • Wednesday Night

      Wednesday Night:ESE wind 5 to 8 kt. Isolated showers.   Seas around 2 ft.

      Low: 83 °F

      ESE 8kt
      2ft

    • Thursday

      Thursday:E wind 6 to 14 kt. Scattered showers after noon.   Seas 2 to 3 ft.

      High: 85 °F

      E 14kt
      2-3ft

    • Thursday Night

      Thursday Night:SE wind 5 to 7 kt. Scattered showers.   Seas around 3 ft.

      Low: 83 °F

      SE 7kt
      3ft

    • Friday

      Friday:E wind 5 to 15 kt. Scattered showers.   Seas 2 to 3 ft.

      High: 85 °F

      E 15kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:32 am EDT Sep 21, 2026
Forecast Valid: 1pm EDT Sep 21, 2026-6pm EDT Sep 27, 2026

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Detailed Forecast


This Afternoon
E wind around 13 kt. Scattered showers and thunderstorms. Seas around 2 ft.
Tonight
SE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms. Seas around 2 ft.
Tuesday
E wind 5 to 13 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 2 ft.
Tuesday Night
ESE wind 5 to 8 kt. Scattered showers. Seas around 2 ft.
Wednesday
E wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 2 ft.
Wednesday Night
ESE wind 5 to 8 kt. Isolated showers. Seas around 2 ft.
Thursday
E wind 6 to 14 kt. Scattered showers after noon. Seas 2 to 3 ft.
Thursday Night
SE wind 5 to 7 kt. Scattered showers. Seas around 3 ft.
Friday
E wind 5 to 15 kt. Scattered showers. Seas 2 to 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: 3:32 am EDT Sep 21, 2026
Forecast Valid: 1pm EDT Sep 21, 2026-6pm EDT Sep 27, 2026
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