Tides Today & Tomorrow in City Island, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in City Island, NY.
Next low tide : in 1h 45m at 10:11 am (1.0 ft)
Next high tide : 4:15 pm (7.9 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:08 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8518490
Common Questions About Tides

City Island, NY Tides - Oct 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:368.19:508.43:430.23:580.26:526:37Waning Crescent1Fri
2Sat10:168.810:368.74:23-0.14:48-0.36:536:35New Moon2Sat
3Sun10:579.311:238.85:03-0.45:37-0.76:546:34New Moon3Sun
4Mon11:419.75:45-0.56:26-0.86:556:32New Moon4Mon
5Tue12:118.712:279.86:29-0.47:16-0.86:566:30Waxing Crescent5Tue
6Wed1:018.51:179.67:15-0.38:08-0.56:576:29Waxing Crescent6Wed
7Thu1:538.12:099.28:050.19:10-0.16:586:27Waxing Crescent7Thu
8Fri2:527.73:098.69:030.510:260.26:596:25First Quarter8Fri
9Sat4:047.44:248.110:290.911:400.57:006:24First Quarter9Sat
10Sun5:287.15:537.711:581.07:016:22First Quarter10Sun
11Mon6:437.27:107.612:470.61:101.07:026:21First Quarter11Mon
12Tue7:507.48:167.61:480.52:140.87:036:19Waxing Gibbous12Tue
13Wed8:487.89:127.82:450.43:100.57:046:18Waxing Gibbous13Wed
14Thu9:378.19:597.93:350.34:010.27:056:16Waxing Gibbous14Thu
15Fri10:208.310:437.94:200.24:470.07:066:14Waxing Gibbous15Fri
16Sat10:598.511:237.95:020.35:30-0.17:076:13Full Moon16Sat
17Sun11:348.45:390.46:100.07:086:11Full Moon17Sun
18Mon12:007.712:028.36:100.66:450.17:106:10Full Moon18Mon
19Tue12:337.512:228.26:270.87:120.37:116:08Full Moon19Tue
20Wed1:017.312:418.06:370.97:240.47:126:07Waning Gibbous20Wed
21Thu1:227.21:097.87:061.07:440.67:136:06Waning Gibbous21Thu
22Fri1:507.01:457.77:421.18:190.77:146:04Waning Gibbous22Fri
23Sat2:266.92:277.58:241.39:020.97:156:03Waning Gibbous23Sat
24Sun3:106.73:157.49:121.49:531.07:166:01Third Quarter24Sun
25Mon4:006.64:087.310:061.510:511.17:176:00Third Quarter25Mon
26Tue4:576.75:077.211:061.511:541.07:195:59Third Quarter26Tue
27Wed5:576.96:107.312:111.37:205:57Third Quarter27Wed
28Thu7:027.37:187.512:580.81:221.07:215:56Waning Crescent28Thu
29Fri8:047.98:267.82:000.52:350.47:225:55Waning Crescent29Fri
30Sat8:578.59:238.12:550.13:36-0.17:235:53Waning Crescent30Sat
31Sun9:449.210:148.43:43-0.24:30-0.67:245:52New Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8518490)

Common Questions About City Island, NY Tides

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What time does the tide turn (slack tide) in City Island, NY today?

Slack tide in City Island, NY is approximately 1:13 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in City Island, NY?

City Island, NY is currently in a transitional phase. Tonight's moon is 36% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are City Island, NY tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for City Island, NY?

Tide predictions for City Island, NY come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for City Island, NY?

Tide data for City Island, NY is sourced from NOAA Station #8518490. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8518490.

What is the moon phase in City Island, NY tonight?

Tonight the moon over City Island, NY is First Quarter (36% illuminated). This places City Island, NY in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA