Cos Cob Harbor Location

Cos Cob Harbor Monthly Tide Charts

October, 2026

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

1

Tide Chart for 10/1
Tide Time Height
High 3:02 AM 7.35 ft
Low 9:12 AM 0.69 ft
High 3:19 PM 8.29 ft
Low 10:03 PM 0.43 ft

2

Tide Chart for 10/2
Tide Time Height
High 3:59 AM 7.09 ft
Low 10:11 AM 0.96 ft
High 4:18 PM 7.98 ft
Low 11:06 PM 0.7 ft

3

Tide Chart for 10/3
Tide Time Height
High 5:01 AM 6.89 ft
Low 11:18 AM 1.16 ft
High 5:24 PM 7.7 ft

4

Tide Chart for 10/4
Tide Time Height
Low 12:13 AM 0.84 ft
High 6:09 AM 6.84 ft
Low 12:29 PM 1.2 ft
High 6:34 PM 7.55 ft

5

Tide Chart for 10/5
Tide Time Height
Low 1:19 AM 0.81 ft
High 7:18 AM 7 ft
Low 1:39 PM 1.05 ft
High 7:44 PM 7.56 ft

6

Tide Chart for 10/6
Tide Time Height
Low 2:22 AM 0.64 ft
High 8:23 AM 7.34 ft
Low 2:44 PM 0.76 ft
High 8:48 PM 7.69 ft

7

Tide Chart for 10/7
Tide Time Height
Low 3:19 AM 0.41 ft
High 9:21 AM 7.77 ft
Low 3:43 PM 0.43 ft
High 9:44 PM 7.83 ft

8

Tide Chart for 10/8
Tide Time Height
Low 4:09 AM 0.21 ft
High 10:11 AM 8.15 ft
Low 4:36 PM 0.14 ft
High 10:34 PM 7.9 ft

9

Tide Chart for 10/9
Tide Time Height
Low 4:56 AM 0.12 ft
High 10:57 AM 8.42 ft
Low 5:24 PM -0.06 ft
High 11:20 PM 7.88 ft

10

Tide Chart for 10/10
Tide Time Height
Low 5:38 AM 0.15 ft
High 11:39 AM 8.53 ft
Low 6:09 PM -0.11 ft

11

Tide Chart for 10/11
Tide Time Height
High 12:04 AM 7.76 ft
Low 6:19 AM 0.31 ft
High 12:19 PM 8.48 ft
Low 6:51 PM -0.05 ft

12

Tide Chart for 10/12
Tide Time Height
High 12:46 AM 7.56 ft
Low 6:58 AM 0.55 ft
High 12:59 PM 8.3 ft
Low 7:32 PM 0.13 ft

13

Tide Chart for 10/13
Tide Time Height
High 1:28 AM 7.33 ft
Low 7:38 AM 0.84 ft
High 1:39 PM 8.03 ft
Low 8:13 PM 0.38 ft

14

Tide Chart for 10/14
Tide Time Height
High 2:11 AM 7.07 ft
Low 8:19 AM 1.14 ft
High 2:21 PM 7.72 ft
Low 8:55 PM 0.67 ft

15

Tide Chart for 10/15
Tide Time Height
High 2:56 AM 6.83 ft
Low 9:02 AM 1.42 ft
High 3:05 PM 7.39 ft
Low 9:41 PM 0.97 ft

16

Tide Chart for 10/16
Tide Time Height
High 3:43 AM 6.6 ft
Low 9:50 AM 1.66 ft
High 3:54 PM 7.09 ft
Low 10:30 PM 1.23 ft

17

Tide Chart for 10/17
Tide Time Height
High 4:33 AM 6.43 ft
Low 10:43 AM 1.83 ft
High 4:46 PM 6.85 ft
Low 11:23 PM 1.4 ft

18

Tide Chart for 10/18
Tide Time Height
High 5:27 AM 6.34 ft
Low 11:41 AM 1.88 ft
High 5:43 PM 6.71 ft

19

Tide Chart for 10/19
Tide Time Height
Low 12:19 AM 1.45 ft
High 6:23 AM 6.39 ft
Low 12:39 PM 1.79 ft
High 6:42 PM 6.7 ft

20

Tide Chart for 10/20
Tide Time Height
Low 1:13 AM 1.36 ft
High 7:19 AM 6.58 ft
Low 1:36 PM 1.56 ft
High 7:38 PM 6.81 ft

21

Tide Chart for 10/21
Tide Time Height
Low 2:04 AM 1.17 ft
High 8:10 AM 6.92 ft
Low 2:30 PM 1.21 ft
High 8:31 PM 7.02 ft

22

Tide Chart for 10/22
Tide Time Height
Low 2:51 AM 0.91 ft
High 8:57 AM 7.34 ft
Low 3:19 PM 0.79 ft
High 9:19 PM 7.26 ft

23

Tide Chart for 10/23
Tide Time Height
Low 3:35 AM 0.64 ft
High 9:40 AM 7.79 ft
Low 4:06 PM 0.36 ft
High 10:04 PM 7.48 ft

24

Tide Chart for 10/24
Tide Time Height
Low 4:17 AM 0.4 ft
High 10:21 AM 8.22 ft
Low 4:51 PM -0.03 ft
High 10:47 PM 7.65 ft

25

Tide Chart for 10/25
Tide Time Height
Low 4:59 AM 0.21 ft
High 11:01 AM 8.57 ft
Low 5:36 PM -0.33 ft
High 11:31 PM 7.75 ft

26

Tide Chart for 10/26
Tide Time Height
Low 5:42 AM 0.09 ft
High 11:43 AM 8.79 ft
Low 6:21 PM -0.49 ft

27

Tide Chart for 10/27
Tide Time Height
High 12:16 AM 7.75 ft
Low 6:26 AM 0.07 ft
High 12:28 PM 8.86 ft
Low 7:08 PM -0.5 ft

28

Tide Chart for 10/28
Tide Time Height
High 1:03 AM 7.66 ft
Low 7:12 AM 0.14 ft
High 1:16 PM 8.77 ft
Low 7:58 PM -0.36 ft

29

Tide Chart for 10/29
Tide Time Height
High 1:54 AM 7.49 ft
Low 8:03 AM 0.31 ft
High 2:08 PM 8.54 ft
Low 8:51 PM -0.1 ft

30

Tide Chart for 10/30
Tide Time Height
High 2:48 AM 7.29 ft
Low 9:00 AM 0.54 ft
High 3:05 PM 8.21 ft
Low 9:50 PM 0.19 ft

31

Tide Chart for 10/31
Tide Time Height
High 3:47 AM 7.11 ft
Low 10:02 AM 0.77 ft
High 4:07 PM 7.85 ft
Low 10:52 PM 0.43 ft

About these predictions

Tide heights are predictions, not measurements. Wind, air pressure, storms, and river flow can cause actual water levels to differ. Not for navigation.

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