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San Juan, PR Local Forecast Office

4NM NE San Juan PR

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers, mainly between noon and 3pm.   Seas 1 ft or less.

      High: 88 °F

      ⇑E 10kt
      < 1ft

    • Monday Night

      Monday Night:SE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly between 9pm and 3am.   Seas 1 ft or less.

      Low: 77 °F

      SE 7kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Isolated showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm.   Seas 1 ft or less.

      High: 88 °F

      ⇑E 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SE wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers.   Seas 1 ft or less.

      Low: 78 °F

      SE 6kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming ESE 7 to 12 kt in the morning. Isolated showers.   Seas 1 ft or less.

      High: 89 °F

      ⇑ESE 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SE wind around 6 kt becoming variable and less than 5 kt after midnight. Isolated showers.   Seas 1 ft or less.

      Low: 78 °F

      SE 6kt⇓
      < 1ft

    • Thursday

      Thursday:ESE wind around 7 kt. Showers likely after noon.   Seas 1 ft or less.

      High: 89 °F

      ESE 7kt
      < 1ft

    • Thursday Night

      Thursday Night:SE wind around 6 kt. Partly cloudy. Seas 1 ft or less.

      Low: 78 °F

      SE 6kt
      < 1ft

    • Friday

      Friday:ESE wind around 8 kt. Showers likely.   Seas 1 ft or less.

      High: 89 °F

      ESE 8kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:46 am EDT Oct 19, 2026
Forecast Valid: 4am EDT Oct 19, 2026-6pm EDT Oct 25, 2026

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Detailed Forecast


Monday
Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers, mainly between noon and 3pm. Seas 1 ft or less.
Monday Night
SE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly between 9pm and 3am. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Isolated showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Seas 1 ft or less.
Tuesday Night
SE wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming ESE 7 to 12 kt in the morning. Isolated showers. Seas 1 ft or less.
Wednesday Night
SE wind around 6 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas 1 ft or less.
Thursday
ESE wind around 7 kt. Showers likely after noon. Seas 1 ft or less.
Thursday Night
SE wind around 6 kt. Partly cloudy. Seas 1 ft or less.
Friday
ESE wind around 8 kt. Showers likely. Seas 1 ft or less.

*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: 3:46 am EDT Oct 19, 2026
Forecast Valid: 4am EDT Oct 19, 2026-6pm EDT Oct 25, 2026
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