Tides Today & Tomorrow in Fire Island Light, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Fire Island Light, NY.
Next low tide : in 6h 01m at 7:47 am (0.1 ft)
Next high tide : 1:42 pm (0.8 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8515014
Common Questions About Tides

Fire Island Light, NY Tides - Jul 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:570.68:150.82:360.12:310.15:258:27Full Moon1Tue
2Wed8:400.78:540.83:210.13:150.15:258:27Full Moon2Wed
3Thu9:220.79:330.84:040.03:580.15:268:27Full Moon3Thu
4Fri10:030.610:110.84:460.04:400.15:268:27Full Moon4Fri
5Sat10:440.610:480.85:250.05:200.15:278:27Waning Gibbous5Sat
6Sun11:260.611:260.86:020.15:570.15:278:26Waning Gibbous6Sun
7Mon12:080.66:370.16:340.25:288:26Waning Gibbous7Mon
8Tue12:050.712:500.67:120.17:120.25:298:26Waning Gibbous8Tue
9Wed12:480.71:330.77:480.17:570.25:298:25Third Quarter9Wed
10Thu1:340.72:170.78:290.18:580.25:308:25Third Quarter10Thu
11Fri2:240.73:020.79:190.110:090.25:318:25Third Quarter11Fri
12Sat3:160.73:520.810:160.111:190.25:318:24Third Quarter12Sat
13Sun4:140.74:490.811:160.15:328:24Waning Crescent13Sun
14Mon5:210.75:520.812:220.112:150.15:338:23Waning Crescent14Mon
15Tue6:290.76:540.91:200.11:120.05:348:23Waning Crescent15Tue
16Wed7:310.77:520.92:170.02:100.05:348:22New Moon16Wed
17Thu8:280.78:461.03:130.03:080.05:358:22New Moon17Thu
18Fri9:230.89:401.04:08-0.14:060.05:368:21New Moon18Fri
19Sat10:180.810:330.95:00-0.15:020.05:378:20New Moon19Sat
20Sun11:140.811:280.95:50-0.15:550.05:388:19Waxing Crescent20Sun
21Mon12:100.86:37-0.16:470.05:398:19Waxing Crescent21Mon
22Tue12:230.91:070.87:25-0.17:410.15:398:18Waxing Crescent22Tue
23Wed1:180.82:000.88:150.08:390.15:408:17First Quarter23Wed
24Thu2:110.72:510.89:070.09:420.15:418:16First Quarter24Thu
25Fri3:020.73:400.810:010.110:450.15:428:16First Quarter25Fri
26Sat3:530.74:300.810:550.111:440.15:438:15First Quarter26Sat
27Sun4:480.65:230.811:460.15:448:14Waxing Gibbous27Sun
28Mon5:460.66:160.812:370.112:350.15:458:13Waxing Gibbous28Mon
29Tue6:430.67:060.81:250.11:210.15:468:12Waxing Gibbous29Tue
30Wed7:330.67:510.82:100.12:060.15:478:11Waxing Gibbous30Wed
31Thu8:180.68:320.82:550.12:510.15:488:10Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8515014)

Common Questions About Fire Island Light, NY Tides

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

Slack tide in Fire Island Light, NY is approximately 10:44 am — 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 Fire Island Light, NY?

Fire Island Light, 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 Fire Island Light, 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 Fire Island Light, NY?

Tide predictions for Fire Island Light, 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 Fire Island Light, NY?

Tide data for Fire Island Light, NY is sourced from NOAA Station #8515014. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8515014.

What is the moon phase in Fire Island Light, NY tonight?

Tonight the moon over Fire Island Light, NY is First Quarter (36% illuminated). This places Fire Island Light, 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