St. Marys (Kings Bay) tide times · NOAA station Kings Bay MSF Pier

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St. Marys (Kings Bay) at a glance

Tides: Twice a day
Typical range: 6.9 fthigh to low
Highest of 2027: 8.2 ftFri, Oct 1
Lowest of 2027: -1.4 ftSat, Jan 23
Record high: 10.7 ftNov 10, 2022
High water after the moon: 8 h 45 min

The tide at St. Marys (Kings Bay)

Pattern: Twice-daily
Two high tides and two low tides a day, about 12 h 25 min apart. The two highs are close: on average just 0.7 ft apart. Form number 0.17.
Typical range: 6.9 ft from the higher high to the lower low on an average day (2.11 m) - a bigger range than 79% of the 235 places on this site.
After the moon: High water comes about 8 h 45 min after the moon is highest in the sky.

2027: the biggest and smallest tides

The highest tides of 2027 - the king tides
Fri, Oct 1	10:35 am	8.2 ft
Fri, Oct 29	9:24 am	8.1 ft
Tue, Aug 31	9:42 pm	7.9 ft

The lowest tides of 2027
Sat, Jan 23	2:57 am	-1.4 ft	in the dark
Sun, Feb 21	2:41 am	-1.3 ft	in the dark
Mon, Jul 5	4:37 pm	-0.9 ft	in daylight

The lowest tides of 2027 in daylight - for tide pools
Sat, Jan 23	3:35 pm	-1.1 ft
Sun, Feb 21	3:09 pm	-1.1 ft
Mon, Jul 5	4:37 pm	-0.9 ft

204 low tides in 2027 drop below zero - below the average lower low water - and uncover more shore than usual.

Records

Highest water recorded: 10.7 ft (3.25 m) on Nov 10, 2022 - 3.7 ft above the average higher high.
Lowest water recorded: -1.9 ft (-0.59 m) on Feb 21, 2023.
Highest tide the moon and sun can raise: 8.6 ft (2.62 m) - the highest astronomical tide in NOAA’s 19-year cycle, which falls on Oct 9, 2033.

Tide times nearby

Fernandina Beach8 mi south
Mayport, Jacksonville27 mi south
Jacksonville (Dames Point)27 mi south
Jacksonville (Downtown)33 mi south
Jacksonville (Buckman Bridge)42 mi south

See the moon move the ocean - the same tide, on a globe seen from the moon.

Heights are above mean lower low water (MLLW), the zero of US charts; times are local. The year’s tides are NOAA’s official predictions - wind and air pressure can move the real water a foot or more. Form number: (K1+O1)/(M2+S2) from NOAA’s harmonic constants - below 0.25 twice-daily, above 3 once-daily. Georgia, 30.778°N 81.491°W. Predictions and records: NOAA CO-OPS, station 8679598. Not for navigation or safety. For a boat, a crossing of sand that floods, or a swim, use the official tables and local advice. No ads, no tracking.