Hawaii & the Territories
Las Mareas
Puerto Rico · NOAA station 9755679 · Tide predictions
17.9283, -66.1583
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Southeast of Ponce buoy · 25 mi W · Station 42085
Wind & wave reports →
Nearby tide stations
- Central Aguirre · 4.7 mi W
- Santa Isabel · 16.4 mi W
- Puerto Maunabo · 18.2 mi E
- Yabucoa Harbor · 23.1 mi E
- Palmas del Mar · 26.0 mi NE
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 1.1 ft — Fri Jul 2 · 10:15 PM
Lowest predicted low tide: -0.3 ft — Sat Jun 5 · 12:29 PM
Biggest single-day swing: 1.3 ft on Sat Jul 3
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sat Jun 5 | 12:29 PM | -0.3 ft |
| Sat Jul 3 | 11:56 AM | -0.3 ft |
| Sun Jun 6 | 12:43 PM | -0.3 ft |
| Fri Jun 4 | 12:05 PM | -0.3 ft |
| Sun Jul 4 | 12:27 PM | -0.3 ft |
| Fri Jul 2 | 11:20 AM | -0.2 ft |
| Sat May 8 | 12:45 PM | -0.2 ft |
| Sun May 9 | 1:01 PM | -0.2 ft |
| Mon Jun 7 | 12:47 PM | -0.2 ft |
| Fri Jun 18 | 11:58 AM | -0.2 ft |
197 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
Las Mareas is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
Trade-wind shores with small mixed tides — a foot or two in Hawaii, a few feet in the Caribbean — where swell and season matter more than range.