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Arecibo, PR Marine Weather Forecast

Overnight - 78°F
Aug 18, 2026
6 mph ESE
Isolated Rain Showers
Isolated rain showers before 3am. Mostly clear, with a low around 78. East southeast wind around 6 mph.
Tuesday - 86°F
Aug 18, 2026
5 to 21 mph E
Sunny then Isolated Rain Showers
Isolated rain showers after noon. Sunny, with a high near 86. East wind 5 to 21 mph, with gusts as high as 29 mph.
Tuesday Night - 78°F
Aug 18, 2026
8 to 17 mph E
Mostly Clear
Mostly clear, with a low around 78. East wind 8 to 17 mph, with gusts as high as 23 mph.
Wednesday - 86°F
Aug 19, 2026
7 to 14 mph E
Mostly Sunny then Scattered Showers And Thunderstorms
Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 86. East wind 7 to 14 mph. Chance of precipitation is 50%.
Wednesday Night - 77°F
Aug 19, 2026
7 mph ESE
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. East southeast wind around 7 mph. Chance of precipitation is 40%.
Thursday - 87°F
Aug 20, 2026
7 to 23 mph E
Sunny then Isolated Rain Showers
Isolated rain showers after noon. Sunny, with a high near 87. East wind 7 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Thursday Night - 77°F
Aug 20, 2026
7 to 18 mph E
Clear
Clear, with a low around 77. East wind 7 to 18 mph, with gusts as high as 25 mph.
Friday - 86°F
Aug 21, 2026
7 to 25 mph ENE
Sunny then Isolated Rain Showers
Isolated rain showers after noon. Sunny, with a high near 86. East northeast wind 7 to 25 mph, with gusts as high as 35 mph.
Friday Night - 78°F
Aug 21, 2026
12 to 21 mph E
Isolated Rain Showers
Isolated rain showers. Partly cloudy, with a low around 78. East wind 12 to 21 mph, with gusts as high as 29 mph.
Saturday - 86°F
Aug 22, 2026
10 to 24 mph E
Isolated Rain Showers
Isolated rain showers. Mostly sunny, with a high near 86.
Saturday Night - 78°F
Aug 22, 2026
8 to 23 mph E
Isolated Rain Showers
Isolated rain showers. Mostly clear, with a low around 78.
Sunday - 86°F
Aug 23, 2026
8 to 24 mph ENE
Mostly Sunny then Scattered Rain Showers
Scattered rain showers after noon. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night - 79°F
Aug 23, 2026
9 to 21 mph E
Mostly Clear
Mostly clear, with a low around 79.
Monday - 86°F
Aug 24, 2026
10 to 23 mph ENE
Isolated Rain Showers
Isolated rain showers. Mostly sunny, with a high near 86.

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