Portland Location

Portland Monthly Tide Charts

October, 2026

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

1

Tide Chart for 10/1
Tide Time Height
High 2:23 AM 1.09 m
Low 8:43 AM 0.54 m
High 1:05 PM 0.74 m
Low 7:31 PM 0.11 m

2

Tide Chart for 10/2
Tide Time Height
High 2:56 AM 1.07 m
Low 9:03 AM 0.63 m
High 12:54 PM 0.75 m
Low 7:50 PM 0.09 m

3

Tide Chart for 10/3
Tide Time Height
High 3:32 AM 1 m
Low 9:07 AM 0.71 m
High 12:38 PM 0.78 m
Low 8:13 PM 0.1 m

4

Tide Chart for 10/4
Tide Time Height
High 5:17 AM 0.89 m
Low 9:47 AM 0.77 m
High 1:18 PM 0.82 m
Low 9:36 PM 0.16 m

5

Tide Chart for 10/5
Tide Time Height
High 1:09 PM 0.86 m
Low 9:52 PM 0.26 m

6

Tide Chart for 10/6
Tide Time Height
High 1:13 PM 0.86 m
Low 9:36 PM 0.39 m

7

Tide Chart for 10/7
Tide Time Height
High 1:13 PM 0.83 m
Low 8:06 PM 0.47 m

8

Tide Chart for 10/8
Tide Time Height
High 1:20 AM 0.6 m
Low 6:26 AM 0.44 m
High 1:04 PM 0.79 m
Low 7:16 PM 0.45 m

9

Tide Chart for 10/9
Tide Time Height
High 1:00 AM 0.74 m
Low 7:05 AM 0.4 m
High 12:57 PM 0.76 m
Low 7:00 PM 0.38 m

10

Tide Chart for 10/10
Tide Time Height
High 1:15 AM 0.87 m
Low 7:36 AM 0.39 m
High 12:59 PM 0.75 m
Low 7:00 PM 0.29 m

11

Tide Chart for 10/11
Tide Time Height
High 1:37 AM 0.98 m
Low 8:02 AM 0.4 m
High 1:08 PM 0.74 m
Low 7:11 PM 0.21 m

12

Tide Chart for 10/12
Tide Time Height
High 2:00 AM 1.06 m
Low 8:25 AM 0.42 m
High 1:21 PM 0.75 m
Low 7:26 PM 0.16 m

13

Tide Chart for 10/13
Tide Time Height
High 2:24 AM 1.11 m
Low 8:49 AM 0.44 m
High 1:37 PM 0.74 m
Low 7:44 PM 0.13 m

14

Tide Chart for 10/14
Tide Time Height
High 2:48 AM 1.13 m
Low 9:14 AM 0.46 m
High 1:53 PM 0.73 m
Low 8:03 PM 0.12 m

15

Tide Chart for 10/15
Tide Time Height
High 3:14 AM 1.13 m
Low 9:40 AM 0.5 m
High 2:06 PM 0.71 m
Low 8:22 PM 0.12 m

16

Tide Chart for 10/16
Tide Time Height
High 3:41 AM 1.09 m
Low 10:07 AM 0.55 m
High 2:12 PM 0.7 m
Low 8:41 PM 0.14 m

17

Tide Chart for 10/17
Tide Time Height
High 4:11 AM 1.03 m
Low 10:33 AM 0.61 m
High 2:06 PM 0.69 m
Low 9:01 PM 0.18 m

18

Tide Chart for 10/18
Tide Time Height
High 4:45 AM 0.95 m
Low 10:56 AM 0.67 m
High 1:43 PM 0.7 m
Low 9:18 PM 0.23 m

19

Tide Chart for 10/19
Tide Time Height
High 5:27 AM 0.85 m
Low 9:27 PM 0.3 m

20

Tide Chart for 10/20
Tide Time Height
High 7:03 AM 0.77 m
Low 9:13 PM 0.38 m

21

Tide Chart for 10/21
Tide Time Height
High 11:48 AM 0.78 m
Low 8:08 PM 0.44 m

22

Tide Chart for 10/22
Tide Time Height
High 2:21 AM 0.57 m
Low 4:52 AM 0.56 m
High 12:01 PM 0.79 m
Low 7:02 PM 0.44 m

23

Tide Chart for 10/23
Tide Time Height
High 12:58 AM 0.65 m
Low 6:07 AM 0.5 m
High 12:15 PM 0.78 m
Low 6:41 PM 0.4 m

24

Tide Chart for 10/24
Tide Time Height
High 12:55 AM 0.76 m
Low 6:49 AM 0.45 m
High 12:30 PM 0.76 m
Low 6:38 PM 0.34 m

25

Tide Chart for 10/25
Tide Time Height
High 1:10 AM 0.88 m
Low 7:25 AM 0.42 m
High 12:43 PM 0.73 m
Low 6:44 PM 0.29 m

26

Tide Chart for 10/26
Tide Time Height
High 1:31 AM 0.99 m
Low 7:59 AM 0.42 m
High 12:54 PM 0.69 m
Low 6:53 PM 0.23 m

27

Tide Chart for 10/27
Tide Time Height
High 1:53 AM 1.07 m
Low 8:33 AM 0.44 m
High 1:02 PM 0.66 m
Low 7:04 PM 0.18 m

28

Tide Chart for 10/28
Tide Time Height
High 2:18 AM 1.14 m
Low 9:06 AM 0.48 m
High 1:08 PM 0.64 m
Low 7:16 PM 0.12 m

29

Tide Chart for 10/29
Tide Time Height
High 2:45 AM 1.16 m
Low 9:38 AM 0.54 m
High 1:09 PM 0.64 m
Low 7:33 PM 0.08 m

30

Tide Chart for 10/30
Tide Time Height
High 3:14 AM 1.14 m
Low 10:05 AM 0.61 m
High 1:04 PM 0.66 m
Low 7:55 PM 0.05 m

31

Tide Chart for 10/31
Tide Time Height
High 3:46 AM 1.08 m
Low 10:25 AM 0.67 m
High 12:59 PM 0.7 m
Low 8:22 PM 0.07 m

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: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 ( license details ). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data Predictions generated with Slackwater; not an official government forecast. Official source
Vertical datum: LAT — LAT