Great Marsh Park (Gerry Boyle Park) Tide Chart

High and low tide predictions for the next 7 days. Data from NOAA station 8571892. Times shown are local (ET). Heights in feet above MLLW.

Current water temperature: 72°F

Wednesday, Jun 3

Time Type Height
12:20 AM Low 0.3 ft
6:38 AM High 2.2 ft
1:42 PM Low 0.5 ft
6:58 PM High 1.6 ft

Thursday, Jun 4

Time Type Height
1:01 AM Low 0.3 ft
7:17 AM High 2.1 ft
2:19 PM Low 0.5 ft
7:40 PM High 1.6 ft

Friday, Jun 5

Time Type Height
1:46 AM Low 0.4 ft
7:56 AM High 2.1 ft
2:57 PM Low 0.5 ft
8:24 PM High 1.6 ft

Saturday, Jun 6

Time Type Height
2:36 AM Low 0.4 ft
8:37 AM High 2.0 ft
3:35 PM Low 0.4 ft
9:13 PM High 1.7 ft

Sunday, Jun 7

Time Type Height
3:28 AM Low 0.5 ft
9:21 AM High 2.0 ft
4:14 PM Low 0.3 ft
10:06 PM High 1.8 ft

Monday, Jun 8

Time Type Height
4:25 AM Low 0.6 ft
10:08 AM High 1.9 ft
4:54 PM Low 0.3 ft
11:03 PM High 1.9 ft

Tuesday, Jun 9

Time Type Height
5:26 AM Low 0.6 ft
11:01 AM High 1.8 ft
5:38 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 Dorchester 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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