St Augustine Tide Chart (FL)

St Augustine (FL) tide times, Jul 29 – Aug 6

Day	Time	Tide	Height
Wed Jul 29	2:47 AM	Low	0.4 ft (0.12 m)
	8:44 AM	High	4.0 ft (1.21 m)
	2:36 PM	Low	0.2 ft (0.06 m)
	9:05 PM	High	5.1 ft (1.56 m)
Thu Jul 30	3:22 AM	Low	0.3 ft (0.09 m)
	9:23 AM	High	4.1 ft (1.25 m)
	3:14 PM	Low	0.2 ft (0.06 m)
	9:43 PM	High	5.1 ft (1.56 m)
Fri Jul 31	3:57 AM	Low	0.2 ft (0.06 m)
	10:03 AM	High	4.2 ft (1.29 m)
	3:52 PM	Low	0.3 ft (0.08 m)
	10:21 PM	High	5.0 ft (1.53 m)
Sat Aug 1	4:32 AM	Low	0.2 ft (0.05 m)
	10:43 AM	High	4.4 ft (1.34 m)
	4:33 PM	Low	0.4 ft (0.11 m)
	10:59 PM	High	4.9 ft (1.49 m)
Sun Aug 2	5:08 AM	Low	0.2 ft (0.05 m)
	11:24 AM	High	4.5 ft (1.38 m)
	5:18 PM	Low	0.5 ft (0.15 m)
	11:39 PM	High	4.7 ft (1.43 m)
Mon Aug 3	5:48 AM	Low	0.1 ft (0.05 m)
	12:07 PM	High	4.7 ft (1.43 m)
	6:10 PM	Low	0.6 ft (0.18 m)
Tue Aug 4	12:22 AM	High	4.5 ft (1.37 m)
	6:32 AM	Low	0.1 ft (0.04 m)
	12:54 PM	High	4.8 ft (1.48 m)
	7:07 PM	Low	0.7 ft (0.20 m)
Wed Aug 5	1:09 AM	High	4.3 ft (1.30 m)
	7:22 AM	Low	0.1 ft (0.03 m)
	1:47 PM	High	5.0 ft (1.52 m)
	8:09 PM	Low	0.7 ft (0.22 m)
Thu Aug 6	2:03 AM	High	4.1 ft (1.25 m)
	8:16 AM	Low	0.0 ft (0.01 m)
	2:47 PM	High	5.1 ft (1.56 m)
	9:11 PM	Low	0.7 ft (0.21 m)

St Augustine is semidiurnal — paired highs (4.0 and 5.1 ft today) and paired lows of similar size. An average swing here this week moves 4.3 ft of water. A 5.1 ft swing — St Augustine's biggest this table — runs from the 8:16 AM low on Thu Aug 6 into the next high. St Augustine tops out at 5.1 ft (Wed Jul 29 9:05 PM) and bottoms at 0.0 ft (Thu Aug 6 8:16 AM).

Moving-water windows — St Augustine

St Augustine mid-swing times below mark predicted peak flow on its 4.3 ft average cycle (why moving water matters):

• Wed Jul 29: 5:45 AM — 3.6 ft flood · 11:40 AM — 3.8 ft ebb · 5:50 PM — 4.9 ft flood
• Thu Jul 30: 12:13 AM — 4.8 ft ebb · 6:22 AM — 3.8 ft flood · 12:18 PM — 3.9 ft ebb · 6:28 PM — 4.9 ft flood

St Augustine numbers: NOAA CO-OPS #8720587 (St. Augustine Beach), 6.5 km off St Augustine center; this open-water pick beat 5 closer-in candidates. Onshore wind or a storm can push real water at St Augustine above the 5.1 ft predicted peak; offshore wind can hold it under. All St Augustine times station-local, refreshed 2026-07-29.