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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

    • Late Afternoon

      Late Afternoon:NNE wind around 8 kt. Showers likely. Seas around 5 ft.

      High: 85 °F

      NNE 8kt
      5ft

    • Tonight

      Tonight:NE wind around 8 kt. Scattered showers, mainly after midnight. Seas around 5 ft.

      Low: 77 °F

      NE 8kt
      5ft

    • Monday

      Monday:NE wind 9 to 12 kt. Scattered showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers and thunderstorms after 3pm. Seas around 4 ft.

      High: 85 °F

      NE 12kt
      4ft

    • Monday Night

      Monday Night:NE wind around 8 kt. Showers likely, mainly between 9pm and midnight. Seas around 4 ft.

      Low: 77 °F

      NE 8kt
      4ft

    • Tuesday

      Tuesday:ENE wind around 9 kt. Showers likely. Seas around 4 ft.

      High: 85 °F

      ENE 9kt
      4ft

    • Tuesday Night

      Tuesday Night:E wind around 6 kt. Scattered showers. Seas around 4 ft.

      Low: 77 °F

      E 6kt
      4ft

    • Wednesday

      Wednesday:E wind 6 to 15 kt. Scattered showers. Seas around 4 ft.

      High: 85 °F

      E 15kt
      4ft

    • Wednesday Night

      Wednesday Night:ESE wind 8 to 10 kt. Scattered showers. Seas around 4 ft.

      Low: 77 °F

      ESE 10kt
      4ft

    • Thursday

      Thursday:E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 4 ft.

      High: 85 °F

      E 15kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:53 pm EDT Mar 22, 2026
Forecast Valid: 5pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Late Afternoon
NNE wind around 8 kt. Showers likely. Seas around 5 ft.
Tonight
NE wind around 8 kt. Scattered showers, mainly after midnight. Seas around 5 ft.
Monday
NE wind 9 to 12 kt. Scattered showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers and thunderstorms after 3pm. Seas around 4 ft.
Monday Night
NE wind around 8 kt. Showers likely, mainly between 9pm and midnight. Seas around 4 ft.
Tuesday
ENE wind around 9 kt. Showers likely. Seas around 4 ft.
Tuesday Night
E wind around 6 kt. Scattered showers. Seas around 4 ft.
Wednesday
E wind 6 to 15 kt. Scattered showers. Seas around 4 ft.
Wednesday Night
ESE wind 8 to 10 kt. Scattered showers. Seas around 4 ft.
Thursday
E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 4 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: 18.46°N 66.13°W
Last Update: 4:53 pm EDT Mar 22, 2026
Forecast Valid: 5pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026
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