Heights in feet above Mean Lower Low Water (MLLW). Dots are NOAA's predicted highs and lows; the line between them is our interpolation. Shaded: night.
| Tide | Time | Height |
|---|---|---|
| Low tide | 2:06 AM | -0.07 ft |
| High tide | 9:12 AM | 2.25 ft |
| Low tide | 3:59 PM | 0.43 ft |
| High tide | 8:57 PM | 1.08 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 9:12 AM 2.3 ft8:57 PM 1.1 ft | 2:06 AM -0.1 ft3:59 PM 0.4 ft |
| Tomorrow Wed, Oct 28 | 10:02 AM 2.3 ft9:42 PM 1.0 ft | 2:48 AM -0.1 ft4:53 PM 0.5 ft |
| Thu, Oct 29 | 10:55 AM 2.2 ft10:32 PM 1.0 ft | 3:35 AM -0.2 ft5:50 PM 0.5 ft |
| Fri, Oct 30 | 11:51 AM 2.2 ft11:29 PM 1.0 ft | 4:26 AM -0.1 ft6:48 PM 0.5 ft |
| Sat, Oct 31 | 12:50 PM 2.1 ft | 5:23 AM -0.1 ft7:47 PM 0.6 ft |
| Sun, Nov 1 | 12:37 AM 1.0 ft1:51 PM 2.0 ft | 6:27 AM 0.1 ft8:42 PM 0.6 ft |
| Mon, Nov 2 | 1:53 AM 1.1 ft2:50 PM 1.9 ft | 7:39 AM 0.3 ft9:32 PM 0.5 ft |
Orange: measured by NOAA's sensor, last 24 hours (6-minute data, preliminary). Dashed: predicted tide, through the next 24 hours. The prediction contains only the astronomical tide; wind, air pressure and river flow move the real water level away from it.
All Puerto Rico tide stations →
On Tuesday, October 27, high tide at Arecibo is at 9:12 AM (2.3 ft) and 8:57 PM (1.1 ft); low tide is at 2:06 AM (-0.1 ft) and 3:59 PM (0.4 ft) (AST, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 2.3 ft on November 25, 2026 at 8:57 AM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.
Yes — on 181 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -0.5 ft on December 24, 2026 at 1:18 AM. Minus tides expose the most shoreline, which is why tide-poolers look for them.
Station local time (AST at the time this page was built), with daylight saving time applied where the area observes it — the same convention as NOAA's own tide tables.
From NOAA CO-OPS, the U.S. government tide station network (tidesandcurrents.noaa.gov); the predictions are public domain. The curve between highs and lows is our interpolation. This page is not for navigation.