Guánica king tides 2026–27

The highest tides NOAA predicts for Guánica over the next 12 months, one per spring tide, at Guanica. The biggest is 1.1 ft on Sat, Jul 31, 2027 at 9:54 PM, about 0.4 ft above a typical high tide.

Next big tide: Wed, Oct 28, 2026 at 12:48 PM, 0.9 ft.

Highest tides

Guánica highest predicted tides
DateTimeHeightAbove a typical highMoon
Wed, Oct 28, 202612:48 PM0.9 ft0.3 ft3 days after the full moon
Wed, Nov 25, 202611:48 AM1.0 ft0.3 ft1 day after the full moon
Wed, Dec 23, 202610:42 AM1.0 ft0.3 fton the full moon
Wed, Jan 20, 20279:36 AM0.9 ft0.2 ft2 days before the full moon
Sun, Jun 6, 202712:12 AM0.9 ft0.2 ft1 day after the new moon
Sat, Jul 3, 202711:06 PM1.0 ft0.3 fton the new moon
Sat, Jul 31, 20279:54 PM1.1 ft0.4 ft1 day before the new moon
Tue, Aug 10, 20278:30 PM0.8 ft0.2 ft
Sat, Aug 28, 20278:54 PM1.1 ft0.4 ft3 days before the new moon
Fri, Sep 24, 20276:54 PM1.0 ft0.3 ft

These are astronomical predictions. An onshore wind, heavy rain or a storm can push water a foot or more higher, and that is when king tides flood low roads, docks and marsh-front yards. Check the forecast the week before.

Lowest tides

The same spring tides drain the water lowest. Good days for shelling, walking sandbars and exploring the flats; mind the time and the incoming tide.

Guánica lowest predicted tides
DateTimeHeightBelow a typical lowMoon
Sat, Mar 27, 20273:00 PM−0.3 ft0.4 ft
Sun, Apr 11, 20272:18 PM−0.3 ft0.4 ft
Sat, Apr 24, 20272:06 PM−0.4 ft0.4 ft4 days after the full moon
Sun, May 9, 20271:12 PM−0.3 ft0.4 ft3 days after the new moon
Fri, May 21, 202712:24 PM−0.4 ft0.4 ft1 day after the full moon
Sat, Jun 5, 202711:54 AM−0.3 ft0.3 ft1 day after the new moon

What is a king tide?

“King tide” is the everyday name for the highest tides of the year. They come with the new or full moon (spring tides) when the moon is also at its closest to Earth, and they are strongest in the months when the sun lines up too. They are entirely predictable, which is why the dates above are known a year ahead.

King tides in nearby towns

From NOAA tide predictions for Guanica. Heights are feet above mean lower low water (MLLW). Not for navigation.