Grand Isle State Park Tide Chart

High and low tide predictions for the next 7 days. Data from NOAA station 8760922. Times shown are local (ET). Heights in feet above MLLW.

Thursday, Jun 25

Time Type Height
6:03 AM High 1.4 ft
5:33 PM Low -0.2 ft

Friday, Jun 26

Time Type Height
6:34 AM High 1.5 ft
6:05 PM Low -0.3 ft

Saturday, Jun 27

Time Type Height
7:09 AM High 1.6 ft
6:39 PM Low -0.3 ft

Sunday, Jun 28

Time Type Height
7:46 AM High 1.6 ft
7:14 PM Low -0.3 ft

Monday, Jun 29

Time Type Height
8:22 AM High 1.6 ft
7:50 PM Low -0.3 ft

Tuesday, Jun 30

Time Type Height
8:55 AM High 1.6 ft
8:25 PM Low -0.2 ft

Wednesday, Jul 1

Time Type Height
9:26 AM High 1.5 ft
8:57 PM Low -0.2 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 Jefferson 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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