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San Juan, PR Local Forecast Office

4NM NE San Juan PR

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:E wind 13 to 15 kt. Showers likely and possibly a thunderstorm before 3pm, then scattered showers and thunderstorms after 3pm.   Seas 1 ft or less.

      High: 89 °F

      E 15kt
      < 1ft

    • Tonight

      Tonight:E wind 7 to 10 kt. Scattered showers.   Seas 1 ft or less.

      Low: 79 °F

      E 10kt
      < 1ft

    • Monday

      Monday:E wind 9 to 15 kt. Showers likely and possibly a thunderstorm before noon, then isolated showers.   Seas 1 ft or less.

      High: 90 °F

      E 15kt
      < 1ft

    • Monday Night

      Monday Night:ESE wind 6 to 8 kt. Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight.   Seas 1 ft or less.

      Low: 80 °F

      ESE 8kt
      < 1ft

    • Tuesday

      Tuesday:E wind 9 to 17 kt, with gusts as high as 23 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon.   Seas 1 ft or less.

      High: 91 °F

      E 17kt
      < 1ft

    • Tuesday Night

      Tuesday Night:E wind 8 to 10 kt. Scattered showers, mainly after midnight.   Seas 1 ft or less.

      Low: 80 °F

      E 10kt
      < 1ft

    • Wednesday

      Wednesday:E wind 12 to 17 kt, with gusts as high as 23 kt. Scattered showers.   Seas 1 ft or less.

      High: 89 °F

      E 17kt
      < 1ft

    • Wednesday Night

      Wednesday Night:ESE wind around 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 81 °F

      ESE 12kt
      < 1ft

    • Thursday

      Thursday:E wind 13 to 17 kt, with gusts as high as 24 kt. Mostly sunny. Seas 1 ft or less.

      High: 90 °F

      E 17kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:29 am EDT Jul 26, 2026
Forecast Valid: 12pm EDT Jul 26, 2026-6pm EDT Aug 1, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

This Afternoon
E wind 13 to 15 kt. Showers likely and possibly a thunderstorm before 3pm, then scattered showers and thunderstorms after 3pm. Seas 1 ft or less.
Tonight
E wind 7 to 10 kt. Scattered showers. Seas 1 ft or less.
Monday
E wind 9 to 15 kt. Showers likely and possibly a thunderstorm before noon, then isolated showers. Seas 1 ft or less.
Monday Night
ESE wind 6 to 8 kt. Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Seas 1 ft or less.
Tuesday
E wind 9 to 17 kt, with gusts as high as 23 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Seas 1 ft or less.
Tuesday Night
E wind 8 to 10 kt. Scattered showers, mainly after midnight. Seas 1 ft or less.
Wednesday
E wind 12 to 17 kt, with gusts as high as 23 kt. Scattered showers. Seas 1 ft or less.
Wednesday Night
ESE wind around 12 kt. Mostly clear. Seas 1 ft or less.
Thursday
E wind 13 to 17 kt, with gusts as high as 24 kt. Mostly sunny. Seas 1 ft or less.

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 65.99°W
Last Update: 7:29 am EDT Jul 26, 2026
Forecast Valid: 12pm EDT Jul 26, 2026-6pm EDT Aug 1, 2026
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