St Augustine Tide Chart (FL)

St Augustine (FL) tide times, Sep 14 – Sep 22

Day	Time	Tide	Height
Mon Sep 14	4:36 AM	Low	0.4 ft (0.11 m)
	11:03 AM	High	5.6 ft (1.70 m)
	5:16 PM	Low	0.7 ft (0.21 m)
	11:21 PM	High	4.8 ft (1.45 m)
Tue Sep 15	5:19 AM	Low	0.6 ft (0.19 m)
	11:47 AM	High	5.4 ft (1.64 m)
	6:07 PM	Low	1.0 ft (0.31 m)
Wed Sep 16	12:06 AM	High	4.4 ft (1.35 m)
	6:07 AM	Low	0.9 ft (0.27 m)
	12:33 PM	High	5.1 ft (1.57 m)
	7:02 PM	Low	1.3 ft (0.39 m)
Thu Sep 17	12:52 AM	High	4.2 ft (1.27 m)
	6:59 AM	Low	1.1 ft (0.34 m)
	1:22 PM	High	4.9 ft (1.50 m)
	7:59 PM	Low	1.5 ft (0.44 m)
Fri Sep 18	1:43 AM	High	3.9 ft (1.20 m)
	7:55 AM	Low	1.2 ft (0.38 m)
	2:17 PM	High	4.8 ft (1.45 m)
	8:55 PM	Low	1.5 ft (0.47 m)
Sat Sep 19	2:41 AM	High	3.8 ft (1.17 m)
	8:51 AM	Low	1.3 ft (0.40 m)
	3:18 PM	High	4.7 ft (1.43 m)
	9:48 PM	Low	1.6 ft (0.47 m)
Sun Sep 20	3:43 AM	High	3.9 ft (1.18 m)
	9:45 AM	Low	1.3 ft (0.39 m)
	4:17 PM	High	4.7 ft (1.45 m)
	10:39 PM	Low	1.5 ft (0.45 m)
Mon Sep 21	4:41 AM	High	4.0 ft (1.22 m)
	10:37 AM	Low	1.2 ft (0.36 m)
	5:11 PM	High	4.9 ft (1.49 m)
	11:26 PM	Low	1.3 ft (0.40 m)
Tue Sep 22	5:32 AM	High	4.3 ft (1.30 m)
	11:28 AM	Low	1.0 ft (0.32 m)
	5:58 PM	High	5.1 ft (1.54 m)

St Augustine is semidiurnal — paired highs (5.6 and 4.8 ft today) and paired lows of similar size. An average swing here this week moves 3.4 ft of water. A 5.2 ft swing — St Augustine's biggest this table — runs from the 4:36 AM low on Mon Sep 14 into the next high. St Augustine tops out at 5.6 ft (Mon Sep 14 11:03 AM) and bottoms at 0.4 ft (Mon Sep 14 4:36 AM).

Moving-water windows — St Augustine

St Augustine mid-swing times below mark predicted peak flow on its 3.4 ft average cycle (why moving water matters):

• Mon Sep 14: 7:49 AM — 5.2 ft flood · 2:09 PM — 4.9 ft ebb · 8:18 PM — 4.1 ft flood
• Tue Sep 15: 2:20 AM — 4.1 ft ebb · 8:33 AM — 4.7 ft flood · 2:57 PM — 4.4 ft ebb · 9:06 PM — 3.4 ft flood

Tide charts near St Augustine

• Daytona Beach tide chart~84 km
• Fernandina Beach tide chart~93 km
• Jekyll Island tide chart~134 km

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 5.6 ft predicted peak; offshore wind can hold it under. All St Augustine times station-local, refreshed 2026-09-14.