Cos Cob Harbor, CT tides — September 2026
NOAA station 8469549 · Subordinate station · Datum MLLW · Local time (America/New_York)
| Date | 1st tide | 2nd tide | 3rd tide | 4th tide |
|---|---|---|---|---|
| 1Tue | 2:32 AMHigh · 7.6 ft2.32 m | 8:45 AMLow · 0.4 ft0.13 m | 2:50 PMHigh · 8.3 ft2.54 m | 9:25 PMLow · 0.3 ft0.10 m |
| 2Wed | 3:20 AMHigh · 7.4 ft2.25 m | 9:31 AMLow · 0.6 ft0.19 m | 3:38 PMHigh · 8.2 ft2.51 m | 10:18 PMLow · 0.5 ft0.16 m |
| 3Thu | 4:13 AMHigh · 7.1 ft2.16 m | 10:24 AMLow · 0.9 ft0.27 m | 4:32 PMHigh · 8.1 ft2.46 m | 11:19 PMLow · 0.7 ft0.23 m |
| 4Fri | 5:12 AMHigh · 6.8 ft2.09 m | 11:26 AMLow · 1.1 ft0.34 m | 5:34 PMHigh · 7.9 ft2.40 m | — |
| 5Sat | 12:25 AMLow · 0.9 ft0.27 m | 6:18 AMHigh · 6.7 ft2.04 m | 12:34 PMLow · 1.2 ft0.37 m | 6:43 PMHigh · 7.8 ft2.36 m |
| 6Sun | 1:32 AMLow · 0.9 ft0.26 m | 7:28 AMHigh · 6.8 ft2.07 m | 1:44 PMLow · 1.1 ft0.34 m | 7:53 PMHigh · 7.8 ft2.38 m |
| 7Mon | 2:37 AMLow · 0.7 ft0.20 m | 8:34 AMHigh · 7.1 ft2.15 m | 2:51 PMLow · 0.9 ft0.26 m | 8:59 PMHigh · 8.0 ft2.43 m |
| 8Tue | 3:37 AMLow · 0.4 ft0.12 m | 9:35 AMHigh · 7.5 ft2.28 m | 3:52 PMLow · 0.5 ft0.16 m | 9:57 PMHigh · 8.2 ft2.50 m |
| 9Wed | 4:31 AMLow · 0.1 ft0.04 m | 10:29 AMHigh · 7.9 ft2.41 m | 4:49 PMLow · 0.2 ft0.07 m | 10:50 PMHigh · 8.3 ft2.54 m |
| 10Thu | 5:19 AMLow · -0.1 ft-0.02 m | 11:18 AMHigh · 8.3 ft2.52 m | 5:40 PMLow · 0.0 ft0.00 m | 11:39 PMHigh · 8.3 ft2.53 m |
| 11Fri | 6:04 AMLow · -0.1 ft-0.04 m | 12:03 PMHigh · 8.5 ft2.58 m | 6:28 PMLow · -0.1 ft-0.03 m | — |
| 12Sat | 12:25 AMHigh · 8.2 ft2.49 m | 6:47 AMLow · 0.0 ft-0.01 m | 12:47 PMHigh · 8.5 ft2.60 m | 7:14 PMLow · 0.0 ft-0.01 m |
| 13Sun | 1:10 AMHigh · 7.9 ft2.42 m | 7:28 AMLow · 0.2 ft0.07 m | 1:30 PMHigh · 8.4 ft2.57 m | 7:59 PMLow · 0.1 ft0.04 m |
| 14Mon | 1:55 AMHigh · 7.6 ft2.32 m | 8:09 AMLow · 0.6 ft0.17 m | 2:12 PMHigh · 8.2 ft2.50 m | 8:43 PMLow · 0.4 ft0.12 m |
| 15Tue | 2:40 AMHigh · 7.3 ft2.22 m | 8:52 AMLow · 0.9 ft0.28 m | 2:56 PMHigh · 7.9 ft2.41 m | 9:29 PMLow · 0.7 ft0.21 m |
| 16Wed | 3:27 AMHigh · 6.9 ft2.12 m | 9:36 AMLow · 1.3 ft0.40 m | 3:42 PMHigh · 7.6 ft2.31 m | 10:18 PMLow · 1.0 ft0.31 m |
| 17Thu | 4:16 AMHigh · 6.6 ft2.03 m | 10:26 AMLow · 1.6 ft0.50 m | 4:31 PMHigh · 7.2 ft2.21 m | 11:10 PMLow · 1.3 ft0.40 m |
| 18Fri | 5:09 AMHigh · 6.4 ft1.96 m | 11:20 AMLow · 1.9 ft0.57 m | 5:26 PMHigh · 7.0 ft2.12 m | — |
| 19Sat | 12:06 AMLow · 1.5 ft0.46 m | 6:07 AMHigh · 6.3 ft1.92 m | 12:19 PMLow · 2.0 ft0.60 m | 6:25 PMHigh · 6.8 ft2.08 m |
| 20Sun | 1:03 AMLow · 1.6 ft0.47 m | 7:06 AMHigh · 6.3 ft1.93 m | 1:19 PMLow · 1.9 ft0.58 m | 7:25 PMHigh · 6.8 ft2.09 m |
| 21Mon | 1:59 AMLow · 1.5 ft0.45 m | 8:03 AMHigh · 6.5 ft1.98 m | 2:15 PMLow · 1.7 ft0.51 m | 8:22 PMHigh · 7.0 ft2.14 m |
| 22Tue | 2:50 AMLow · 1.3 ft0.38 m | 8:54 AMHigh · 6.8 ft2.08 m | 3:07 PMLow · 1.4 ft0.41 m | 9:12 PMHigh · 7.3 ft2.21 m |
| 23Wed | 3:36 AMLow · 1.0 ft0.30 m | 9:40 AMHigh · 7.2 ft2.19 m | 3:55 PMLow · 1.0 ft0.30 m | 9:57 PMHigh · 7.5 ft2.29 m |
| 24Thu | 4:18 AMLow · 0.7 ft0.21 m | 10:20 AMHigh · 7.6 ft2.31 m | 4:39 PMLow · 0.6 ft0.19 m | 10:39 PMHigh · 7.7 ft2.36 m |
| 25Fri | 4:58 AMLow · 0.4 ft0.14 m | 10:59 AMHigh · 8.0 ft2.43 m | 5:22 PMLow · 0.3 ft0.09 m | 11:19 PMHigh · 7.9 ft2.40 m |
| 26Sat | 5:36 AMLow · 0.3 ft0.08 m | 11:36 AMHigh · 8.3 ft2.52 m | 6:03 PMLow · 0.0 ft0.01 m | 11:59 PMHigh · 7.9 ft2.42 m |
| 27Sun | 6:14 AMLow · 0.2 ft0.05 m | 12:14 PMHigh · 8.5 ft2.60 m | 6:45 PMLow · -0.1 ft-0.04 m | — |
| 28Mon | 12:40 AMHigh · 7.9 ft2.41 m | 6:53 AMLow · 0.2 ft0.05 m | 12:54 PMHigh · 8.7 ft2.64 m | 7:29 PMLow · -0.2 ft-0.05 m |
| 29Tue | 1:24 AMHigh · 7.8 ft2.38 m | 7:35 AMLow · 0.3 ft0.08 m | 1:38 PMHigh · 8.7 ft2.64 m | 8:15 PMLow · -0.1 ft-0.02 m |
| 30Wed | 2:11 AMHigh · 7.6 ft2.32 m | 8:21 AMLow · 0.4 ft0.14 m | 2:26 PMHigh · 8.5 ft2.60 m | 9:06 PMLow · 0.1 ft0.04 m |
Tue12:32 AM7.6 ft2.32 m8:45 AM0.4 ft0.13 m2:50 PM8.3 ft2.54 m9:25 PM0.3 ft0.10 mWed23:20 AM7.4 ft2.25 m9:31 AM0.6 ft0.19 m3:38 PM8.2 ft2.51 m10:18 PM0.5 ft0.16 mThu34:13 AM7.1 ft2.16 m10:24 AM0.9 ft0.27 m4:32 PM8.1 ft2.46 m11:19 PM0.7 ft0.23 mFri45:12 AM6.8 ft2.09 m11:26 AM1.1 ft0.34 m5:34 PM7.9 ft2.40 mSat512:25 AM0.9 ft0.27 m6:18 AM6.7 ft2.04 m12:34 PM1.2 ft0.37 m6:43 PM7.8 ft2.36 mSun61:32 AM0.9 ft0.26 m7:28 AM6.8 ft2.07 m1:44 PM1.1 ft0.34 m7:53 PM7.8 ft2.38 mMon72:37 AM0.7 ft0.20 m8:34 AM7.1 ft2.15 m2:51 PM0.9 ft0.26 m8:59 PM8.0 ft2.43 mTue83:37 AM0.4 ft0.12 m9:35 AM7.5 ft2.28 m3:52 PM0.5 ft0.16 m9:57 PM8.2 ft2.50 mWed94:31 AM0.1 ft0.04 m10:29 AM7.9 ft2.41 m4:49 PM0.2 ft0.07 m10:50 PM8.3 ft2.54 mThu105:19 AM-0.1 ft-0.02 m11:18 AM8.3 ft2.52 m5:40 PM0.0 ft0.00 m11:39 PM8.3 ft2.53 mFri116:04 AM-0.1 ft-0.04 m12:03 PM8.5 ft2.58 m6:28 PM-0.1 ft-0.03 mSat1212:25 AM8.2 ft2.49 m6:47 AM0.0 ft-0.01 m12:47 PM8.5 ft2.60 m7:14 PM0.0 ft-0.01 mSun131:10 AM7.9 ft2.42 m7:28 AM0.2 ft0.07 m1:30 PM8.4 ft2.57 m7:59 PM0.1 ft0.04 mMon141:55 AM7.6 ft2.32 m8:09 AM0.6 ft0.17 m2:12 PM8.2 ft2.50 m8:43 PM0.4 ft0.12 mTue152:40 AM7.3 ft2.22 m8:52 AM0.9 ft0.28 m2:56 PM7.9 ft2.41 m9:29 PM0.7 ft0.21 mWed163:27 AM6.9 ft2.12 m9:36 AM1.3 ft0.40 m3:42 PM7.6 ft2.31 m10:18 PM1.0 ft0.31 mThu174:16 AM6.6 ft2.03 m10:26 AM1.6 ft0.50 m4:31 PM7.2 ft2.21 m11:10 PM1.3 ft0.40 mFri185:09 AM6.4 ft1.96 m11:20 AM1.9 ft0.57 m5:26 PM7.0 ft2.12 mSat1912:06 AM1.5 ft0.46 m6:07 AM6.3 ft1.92 m12:19 PM2.0 ft0.60 m6:25 PM6.8 ft2.08 mSun201:03 AM1.6 ft0.47 m7:06 AM6.3 ft1.93 m1:19 PM1.9 ft0.58 m7:25 PM6.8 ft2.09 mMon211:59 AM1.5 ft0.45 m8:03 AM6.5 ft1.98 m2:15 PM1.7 ft0.51 m8:22 PM7.0 ft2.14 mTue222:50 AM1.3 ft0.38 m8:54 AM6.8 ft2.08 m3:07 PM1.4 ft0.41 m9:12 PM7.3 ft2.21 mWed233:36 AM1.0 ft0.30 m9:40 AM7.2 ft2.19 m3:55 PM1.0 ft0.30 m9:57 PM7.5 ft2.29 mThu244:18 AM0.7 ft0.21 m10:20 AM7.6 ft2.31 m4:39 PM0.6 ft0.19 m10:39 PM7.7 ft2.36 mFri254:58 AM0.4 ft0.14 m10:59 AM8.0 ft2.43 m5:22 PM0.3 ft0.09 m11:19 PM7.9 ft2.40 mSat265:36 AM0.3 ft0.08 m11:36 AM8.3 ft2.52 m6:03 PM0.0 ft0.01 m11:59 PM7.9 ft2.42 mSun276:14 AM0.2 ft0.05 m12:14 PM8.5 ft2.60 m6:45 PM-0.1 ft-0.04 mMon2812:40 AM7.9 ft2.41 m6:53 AM0.2 ft0.05 m12:54 PM8.7 ft2.64 m7:29 PM-0.2 ft-0.05 mTue291:24 AM7.8 ft2.38 m7:35 AM0.3 ft0.08 m1:38 PM8.7 ft2.64 m8:15 PM-0.1 ft-0.02 mWed302:11 AM7.6 ft2.32 m8:21 AM0.4 ft0.14 m2:26 PM8.5 ft2.60 m9:06 PM0.1 ft0.04 m
Heights relative to MLLW; times local to the station. Predictions from NOAA CO-OPS; not for navigation.