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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSE wind 5 to 7 kt. Scattered showers, mainly between noon and 3pm.   Seas around 4 ft.

      High: 85 °F

      SSE 7kt
      4ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Mostly clear. Seas 3 to 4 ft.

      Low: 82 °F

      Light Wind
      3-4ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming E 5 to 9 kt in the morning. Showers likely and possibly a thunderstorm, mainly after noon.   Seas around 3 ft.

      High: 85 °F

      ⇑E 9kt
      3ft

    • Thursday Night

      Thursday Night:SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers, with thunderstorms also possible after midnight.   Seas around 4 ft.

      Low: 82 °F

      SSE 6kt⇓
      4ft

    • Friday

      Friday:ESE wind 5 to 11 kt. Scattered showers, then showers and possibly a thunderstorm after noon.   Seas around 4 ft.

      High: 85 °F

      ESE 11kt
      4ft

    • Friday Night

      Friday Night:ESE wind around 8 kt. Scattered showers, with thunderstorms also possible after midnight.   Seas around 4 ft.

      Low: 82 °F

      ESE 8kt
      4ft

    • Saturday

      Saturday:ESE wind 7 to 11 kt. Showers likely after noon.   Seas around 4 ft.

      High: 85 °F

      ESE 11kt
      4ft

    • Saturday Night

      Saturday Night:ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 4 ft.

      Low: 82 °F

      ESE 7kt⇓
      4ft

    • Sunday

      Sunday:ESE wind 6 to 11 kt. Scattered showers.   Seas around 4 ft.

      High: 85 °F

      ESE 11kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:58 am EDT Oct 21, 2026
Forecast Valid: 9am EDT Oct 21, 2026-6pm EDT Oct 27, 2026

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Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today
SSE wind 5 to 7 kt. Scattered showers, mainly between noon and 3pm. Seas around 4 ft.
Tonight
Variable winds 5 kt or less. Mostly clear. Seas 3 to 4 ft.
Thursday
Variable winds less than 5 kt becoming E 5 to 9 kt in the morning. Showers likely and possibly a thunderstorm, mainly after noon. Seas around 3 ft.
Thursday Night
SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers, with thunderstorms also possible after midnight. Seas around 4 ft.
Friday
ESE wind 5 to 11 kt. Scattered showers, then showers and possibly a thunderstorm after noon. Seas around 4 ft.
Friday Night
ESE wind around 8 kt. Scattered showers, with thunderstorms also possible after midnight. Seas around 4 ft.
Saturday
ESE wind 7 to 11 kt. Showers likely after noon. Seas around 4 ft.
Saturday Night
ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 4 ft.
Sunday
ESE wind 6 to 11 kt. Scattered showers. Seas around 4 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: 4:58 am EDT Oct 21, 2026
Forecast Valid: 9am EDT Oct 21, 2026-6pm EDT Oct 27, 2026
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