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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 15 kt, with gusts as high as 21 kt. Scattered showers and thunderstorms before 3pm, then isolated showers.   Seas around 3 ft.

      High: 86 °F

      E 15kt
      3ft

    • Tonight

      Tonight:ESE wind 7 to 9 kt. Scattered showers, then showers likely and possibly a thunderstorm after 3am.   Seas 2 to 3 ft.

      Low: 80 °F

      ESE 9kt
      2-3ft

    • Tuesday

      Tuesday:E wind 8 to 16 kt, with gusts as high as 22 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm.   Seas around 3 ft.

      High: 87 °F

      E 16kt
      3ft

    • Tuesday Night

      Tuesday Night:ESE wind around 9 kt. Scattered showers, mainly after midnight.   Seas around 3 ft.

      Low: 81 °F

      ESE 9kt
      3ft

    • Wednesday

      Wednesday:E wind 10 to 17 kt, with gusts as high as 23 kt. Isolated showers.   Seas around 3 ft.

      High: 87 °F

      E 17kt
      3ft

    • Wednesday Night

      Wednesday Night:E wind around 12 kt. Clear. Seas around 3 ft.

      Low: 81 °F

      E 12kt
      3ft

    • Thursday

      Thursday:E wind 12 to 17 kt, with gusts as high as 24 kt. Mostly sunny. Seas around 4 ft.

      High: 88 °F

      E 17kt
      4ft

    • Thursday Night

      Thursday Night:E wind 10 to 12 kt. Partly cloudy. Seas around 4 ft.

      Low: 81 °F

      E 12kt
      4ft

    • Friday

      Friday:E wind 12 to 16 kt, with gusts as high as 22 kt. Sunny. Seas around 4 ft.

      High: 86 °F

      E 16kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:51 pm EDT Jul 27, 2026
Forecast Valid: 2pm EDT Jul 27, 2026-6pm EDT Aug 2, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

This Afternoon
E wind around 15 kt, with gusts as high as 21 kt. Scattered showers and thunderstorms before 3pm, then isolated showers. Seas around 3 ft.
Tonight
ESE wind 7 to 9 kt. Scattered showers, then showers likely and possibly a thunderstorm after 3am. Seas 2 to 3 ft.
Tuesday
E wind 8 to 16 kt, with gusts as high as 22 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Seas around 3 ft.
Tuesday Night
ESE wind around 9 kt. Scattered showers, mainly after midnight. Seas around 3 ft.
Wednesday
E wind 10 to 17 kt, with gusts as high as 23 kt. Isolated showers. Seas around 3 ft.
Wednesday Night
E wind around 12 kt. Clear. Seas around 3 ft.
Thursday
E wind 12 to 17 kt, with gusts as high as 24 kt. Mostly sunny. Seas around 4 ft.
Thursday Night
E wind 10 to 12 kt. Partly cloudy. Seas around 4 ft.
Friday
E wind 12 to 16 kt, with gusts as high as 22 kt. Sunny. 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: 1:51 pm EDT Jul 27, 2026
Forecast Valid: 2pm EDT Jul 27, 2026-6pm EDT Aug 2, 2026
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