St. Augustine Beach Tide Chart

High and low tide predictions for the next 7 days. Data from NOAA station 8720587. Times shown are local (ET). Heights in feet above MLLW.

Thursday, Jun 25

Time Type Height
5:31 AM High 3.6 ft
11:23 AM Low 0.1 ft
6:05 PM High 4.8 ft

Friday, Jun 26

Time Type Height
12:26 AM Low 0.6 ft
6:20 AM High 3.5 ft
12:09 PM Low 0.2 ft
6:48 PM High 4.8 ft

Saturday, Jun 27

Time Type Height
1:13 AM Low 0.5 ft
7:05 AM High 3.5 ft
12:54 PM Low 0.2 ft
7:30 PM High 4.9 ft

Sunday, Jun 28

Time Type Height
1:57 AM Low 0.4 ft
7:49 AM High 3.6 ft
1:38 PM Low 0.1 ft
8:11 PM High 4.9 ft

Monday, Jun 29

Time Type Height
2:37 AM Low 0.3 ft
8:30 AM High 3.6 ft
2:19 PM Low 0.1 ft
8:52 PM High 5.0 ft

Tuesday, Jun 30

Time Type Height
3:15 AM Low 0.3 ft
9:11 AM High 3.7 ft
2:58 PM Low 0.1 ft
9:31 PM High 5.0 ft

Wednesday, Jul 1

Time Type Height
3:53 AM Low 0.3 ft
9:52 AM High 3.7 ft
3:36 PM Low 0.2 ft
10:10 PM High 4.9 ft

Why Tides Matter Here

Chesapeake Bay tides run smaller than the open Atlantic — typically 1-2 feet of range versus 3-5 feet offshore — but they still affect fishing, boating, and fossil hunting. Low tide exposes mudflats, sandbars, and (at St. Johns County beaches) fossil-rich cliff debris. High tide is better for swimming and crabbing in marsh areas. For fishing, the first hour after the tide turns — either direction — is often the best window.

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