TideTurtle
Satellite view of the coast near Great Captain Island

Great Captain Island tide times

Great Captain Island tide forecast — heights relative to MSL.

40.98°N · 73.63°W
Updated Thu 9 Jul
Datum MSL
Tide rising
0.50m
Next high in 3h 11m
COEF69
Next high
05:33
0.50 m · in 3h 11m
Next low
11:51
-1.52 m · in 9h 28m
Tide · next 12 h-1.52 m → 0.50 m
H 05:33L 11:51NOW · 02:22
Today

Today's tide times for Great Captain Island

Tide times at Great Captain Island on Thursday, 9 July 2026: first high tide at 05:33am, first low tide at 11:51am, second high tide at 06:12pm. Sunrise 05:31am, sunset 08:28pm.

Tide curve

Tide chart for Great Captain Island

24-hour cosine-interpolated curve around the present moment. Heights relative to MSL. Predictions: Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid).

Tide MSL (m)H 05:33 · 0.50 m L 11:51 · -1.52 m
H 05:33 · 0.50 mL 11:51 · -1.52 m16:4621:3402:2207:1011:58NOW · 02:22
Today's conditions

Sun, moon and conditions on Thu 09 Jul

Snapshot at build time — refreshes daily. Sea state from Open-Meteo Marine.

Sunrise
05:31
Day -10h -3m
Sunset
20:28
Local America/New York
Moon
32%
Last quarter
Wind
12.7m/s
225° · sw · strong
Swell
0.0m
2.3 s period
Water
22.8°
Sea surface temperature
7-day outlook

Highs and lows next 7 days

Every predicted high and low for the next week, with the daily tidal coefficient (0–120; higher = bigger swing, > 95 means stronger currents).

DayTypeTimeHeightCoef.
Wed 8 JulH05:330.50 m69
L11:51-1.52 m
H18:120.89 m
Thu 9 JulL00:49-1.60 m74
H06:460.55 m
L12:56-1.61 m
H19:150.98 m
Fri 10 JulL01:46-1.71 m83
H07:480.71 m
L13:55-1.66 m
H20:121.20 m
Sat 11 JulL02:47-1.86 m89
H08:460.75 m
L14:54-1.84 m
H21:081.25 m
Sun 12 JulL03:43-2.02 m97
H09:410.87 m
L15:51-1.93 m
H22:001.36 m
Mon 13 JulL04:35-2.10 m100
H10:340.99 m
L16:46-2.01 m
H22:521.39 m
Tue 14 JulL05:25-2.14 m93
H11:261.10 m
L17:43-2.10 m
Coastline

Other spots nearby

The three closest curated TideTurtle locations to Great Captain Island, measured by great-circle distance.

Fishing & activity windows

Today's solunar windows

Solunar tradition: major periods are the ≈3h windows around moon transit and opposition; minor are ≈2h around moonrise and moonset. Pair with the local tide stage and wind for the best read.

Major (≈3h)
06:3509:35
Minor (≈2h)
23:4601:46
14:3716:37
Spring and neap cycle

Cycle dates near Great Captain Island

Next spring tide on Tue 14 Jul (range 3.5m / 11.6ft). Last neap on Wed 08 Jul.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

Editorial

About tides at Great Captain Island

A short guide to the coastline at Great Captain Island — geography, sea state, and what the tide is actually doing under your feet.

Great Captain Island sits on the Connecticut coast of United States. The local tide pattern is broad meso-tide: from the gridded ocean model TideTurtle samples, the seven-day water-level range reaches about 3.0 m, with the bigger swings clustering around new and full moons.

For anyone visiting Great Captain Island — surfers, anglers, paddlers, beach-walkers — the tide chart matters in two ways. First, the time of high or low water decides whether the shoreline is exposed or covered. Second, the rate of rise or fall sets how fast currents move in and out of any inlet, harbour or rivermouth nearby. The page below shows both: the next high and low tide times for today, and the seven-day forecast underneath.

Heights on this page are gridded predictions from the Open-Meteo Marine model, normalised to Mean Sea Level (MSL). They are accurate to within roughly 15-30 cm on most days; on storm-surge days the actual water can run higher than the prediction. For safety-critical planning consult official hydrographic services; for everyday surf, kayak, fishing and walking decisions the chart is enough.

Spring tides — the biggest swings of the lunar cycle — happen around new and full moons (twice a month). Neap tides — the smallest swings — land on the quarter moons. If you want the lowest low tide of the month for tidepooling or sandbar walking at Great Captain Island, look at the seven-day chart for the spring tide.

Common questions

Tide questions about Great Captain Island

Quick answers to the most common questions about tide times, range, and water access at Great Captain Island.

When is the next high tide at Great Captain Island?

The next high tide time at Great Captain Island updates daily on this page from gridded Open-Meteo Marine predictions. Look at the highlighted next-high-tide chip at the top of the chart.

What is the tidal range at Great Captain Island?

Over the next seven days the modelled water-level range at Great Captain Island is about 3.0 m. Spring tides (around new and full moons) push the range above this average; neap tides (quarter moons) trim it.

Are these tide times accurate for navigation at Great Captain Island?

Open-Meteo Marine is a gridded global model — accurate enough for everyday surf, fishing, paddling and walking decisions, but not a substitute for an official hydrographic chart. Consult united states's national authority before relying on it for safety-critical use.