Cos Cob Harbor — CT, United States

Tide times & tide chart

1.5 ft12:19am6.4 ft6:21am1.7 ft12:35pm6.7 ft6:39pmNow
Tide predictions for Cos Cob Harbor, NOAA reference highs and lows, adjusted by published offsets. High 6.7 feet on Mon 19 Oct 2026 at 18:40, low 1.5 feet on Mon 19 Oct 2026 at 00:20, above MLLW, the chart datum.
↑7:10am↓6:07pm

Predictions are not observations — conditions vary with weather and river flow. Not for navigation.

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Tide times for the next 7 days

Mon 19 Oct 2026 through Sun 25 Oct 2026. All times are local to Cos Cob Harbor (America/New_York). Heights are in feet above MLLW.
DayTideTimeHeight
Mon 19 Oct 2026Low1.5 ft
Mon 19 Oct 2026High6.4 ft
Mon 19 Oct 2026Low1.7 ft
Mon 19 Oct 2026High6.7 ft
Tue 20 Oct 2026Low1.4 ft
Tue 20 Oct 2026High6.6 ft
Tue 20 Oct 2026Low1.5 ft
Tue 20 Oct 2026High6.8 ft
Wed 21 Oct 2026Low1.2 ft
Wed 21 Oct 2026High6.9 ft
Wed 21 Oct 2026Low1.2 ft
Wed 21 Oct 2026High7.0 ft
Thu 22 Oct 2026Low1.0 ft
Thu 22 Oct 2026High7.3 ft
Thu 22 Oct 2026Low0.8 ft
Thu 22 Oct 2026High7.2 ft
Fri 23 Oct 2026Low0.7 ft
Fri 23 Oct 2026High7.8 ft
Fri 23 Oct 2026Low0.3 ft
Fri 23 Oct 2026High7.5 ft
Sat 24 Oct 2026Low0.5 ft
Sat 24 Oct 2026High8.2 ft
Sat 24 Oct 2026Low0.0 ft
Sat 24 Oct 2026High7.6 ft
Sun 25 Oct 2026Low0.3 ft
Sun 25 Oct 2026High8.5 ft
Sun 25 Oct 2026Low-0.3 ft
Sun 25 Oct 2026High7.7 ft

Station facts

Position
41.0167° N, 73.5967° W
Time zone
America/New_York
Datum
MLLW datum · NOAA reference highs and lows, adjusted by published offsets
Source
NOAA tide offsets from 8467150
Region
CT, United States

Heights are measured above chart datum. A negative height means there is that much less water than the charted depth shows.

Slackwater database (https://github.com/openwatersio/slackwater-database)

How we check predictions — dated samples and their limits.

Nearby

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