Johnston Key Location

Johnston Key Monthly Tide Charts

September, 2026

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

1

Tide Chart for 9/1
Tide Time Height
High 4:16 AM 2.25 ft
Low 12:41 PM 0.12 ft
High 5:09 PM 1.75 ft

2

Tide Chart for 9/2
Tide Time Height
Low 12:23 AM 0.34 ft
High 4:52 AM 2.3 ft
Low 1:41 PM 0.12 ft
High 6:06 PM 1.5 ft

3

Tide Chart for 9/3
Tide Time Height
Low 12:57 AM 0.38 ft
High 5:35 AM 2.33 ft
Low 2:51 PM 0.13 ft
High 7:20 PM 1.28 ft

4

Tide Chart for 9/4
Tide Time Height
Low 1:37 AM 0.42 ft
High 6:31 AM 2.32 ft
Low 4:10 PM 0.14 ft
High 9:02 PM 1.17 ft

5

Tide Chart for 9/5
Tide Time Height
Low 2:34 AM 0.45 ft
High 7:46 AM 2.32 ft
Low 5:31 PM 0.14 ft
High 10:38 PM 1.21 ft

6

Tide Chart for 9/6
Tide Time Height
Low 3:58 AM 0.48 ft
High 9:14 AM 2.36 ft
Low 6:45 PM 0.14 ft
High 11:37 PM 1.33 ft

7

Tide Chart for 9/7
Tide Time Height
Low 5:27 AM 0.46 ft
High 10:34 AM 2.46 ft
Low 7:44 PM 0.14 ft

8

Tide Chart for 9/8
Tide Time Height
High 12:19 AM 1.49 ft
Low 6:45 AM 0.41 ft
High 11:41 AM 2.56 ft
Low 8:30 PM 0.16 ft

9

Tide Chart for 9/9
Tide Time Height
High 12:54 AM 1.69 ft
Low 7:50 AM 0.34 ft
High 12:39 PM 2.61 ft
Low 9:08 PM 0.18 ft

10

Tide Chart for 9/10
Tide Time Height
High 1:27 AM 1.9 ft
Low 8:47 AM 0.27 ft
High 1:30 PM 2.59 ft
Low 9:42 PM 0.22 ft

11

Tide Chart for 9/11
Tide Time Height
High 1:59 AM 2.09 ft
Low 9:38 AM 0.21 ft
High 2:18 PM 2.5 ft
Low 10:15 PM 0.27 ft

12

Tide Chart for 9/12
Tide Time Height
High 2:30 AM 2.26 ft
Low 10:26 AM 0.17 ft
High 3:02 PM 2.35 ft
Low 10:46 PM 0.31 ft

13

Tide Chart for 9/13
Tide Time Height
High 3:01 AM 2.37 ft
Low 11:13 AM 0.15 ft
High 3:44 PM 2.15 ft
Low 11:18 PM 0.35 ft

14

Tide Chart for 9/14
Tide Time Height
High 3:33 AM 2.42 ft
Low 11:59 AM 0.16 ft
High 4:25 PM 1.94 ft
Low 11:48 PM 0.39 ft

15

Tide Chart for 9/15
Tide Time Height
High 4:05 AM 2.41 ft
Low 12:48 PM 0.18 ft
High 5:06 PM 1.72 ft

16

Tide Chart for 9/16
Tide Time Height
Low 12:18 AM 0.43 ft
High 4:40 AM 2.35 ft
Low 1:41 PM 0.22 ft
High 5:51 PM 1.52 ft

17

Tide Chart for 9/17
Tide Time Height
Low 12:47 AM 0.47 ft
High 5:20 AM 2.26 ft
Low 2:42 PM 0.26 ft
High 6:49 PM 1.36 ft

18

Tide Chart for 9/18
Tide Time Height
Low 1:15 AM 0.51 ft
High 6:08 AM 2.17 ft
Low 3:53 PM 0.3 ft
High 8:27 PM 1.27 ft

19

Tide Chart for 9/19
Tide Time Height
Low 1:50 AM 0.55 ft
High 7:09 AM 2.11 ft
Low 5:09 PM 0.32 ft
High 10:59 PM 1.32 ft

20

Tide Chart for 9/20
Tide Time Height
Low 3:31 AM 0.59 ft
High 8:27 AM 2.1 ft
Low 6:17 PM 0.32 ft
High 11:32 PM 1.42 ft

21

Tide Chart for 9/21
Tide Time Height
Low 5:10 AM 0.59 ft
High 9:44 AM 2.15 ft
Low 7:10 PM 0.31 ft
High 11:51 PM 1.55 ft

22

Tide Chart for 9/22
Tide Time Height
Low 6:20 AM 0.56 ft
High 10:47 AM 2.26 ft
Low 7:50 PM 0.31 ft

23

Tide Chart for 9/23
Tide Time Height
High 12:12 AM 1.71 ft
Low 7:15 AM 0.5 ft
High 11:40 AM 2.36 ft
Low 8:22 PM 0.32 ft

24

Tide Chart for 9/24
Tide Time Height
High 12:35 AM 1.88 ft
Low 8:01 AM 0.43 ft
High 12:27 PM 2.43 ft
Low 8:50 PM 0.33 ft

25

Tide Chart for 9/25
Tide Time Height
High 1:00 AM 2.06 ft
Low 8:44 AM 0.35 ft
High 1:11 PM 2.45 ft
Low 9:17 PM 0.34 ft

26

Tide Chart for 9/26
Tide Time Height
High 1:27 AM 2.23 ft
Low 9:25 AM 0.26 ft
High 1:56 PM 2.41 ft
Low 9:44 PM 0.36 ft

27

Tide Chart for 9/27
Tide Time Height
High 1:56 AM 2.38 ft
Low 10:06 AM 0.18 ft
High 2:40 PM 2.31 ft
Low 10:11 PM 0.37 ft

28

Tide Chart for 9/28
Tide Time Height
High 2:27 AM 2.51 ft
Low 10:50 AM 0.11 ft
High 3:26 PM 2.15 ft
Low 10:41 PM 0.4 ft

29

Tide Chart for 9/29
Tide Time Height
High 3:01 AM 2.6 ft
Low 11:37 AM 0.08 ft
High 4:14 PM 1.95 ft
Low 11:12 PM 0.42 ft

30

Tide Chart for 9/30
Tide Time Height
High 3:38 AM 2.64 ft
Low 12:29 PM 0.08 ft
High 5:07 PM 1.73 ft
Low 11:46 PM 0.45 ft

Tide prediction source: NOAA
Vertical datum: MLLW — Mean Lower Low Water