Tides Today & Tomorrow in Fire Island Light, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Fire Island Light, NY.
Next low tide : 11:30 pm (0.2 ft)
Next high tide : in 1h 26m at 4:07 pm (0.7 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8515014
Common Questions About Tides

Fire Island Light, NY Tides - Jul 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:470.86:17-0.16:300.05:258:27Waning Gibbous1Wed
2Thu12:050.912:440.87:06-0.17:230.05:258:27Waning Gibbous2Thu
3Fri1:010.81:400.87:560.08:200.15:268:27Third Quarter3Fri
4Sat1:550.82:330.88:490.09:220.15:268:27Third Quarter4Sat
5Sun2:470.73:230.89:430.110:250.15:278:27Third Quarter5Sun
6Mon3:380.74:130.710:370.111:240.15:288:26Third Quarter6Mon
7Tue4:300.75:030.711:280.15:288:26Waning Crescent7Tue
8Wed5:250.65:550.812:180.112:160.15:298:26Waning Crescent8Wed
9Thu6:200.66:450.81:060.11:010.15:298:25Waning Crescent9Thu
10Fri7:110.77:300.81:520.11:450.15:308:25Waning Crescent10Fri
11Sat7:580.78:110.82:360.12:280.15:318:25New Moon11Sat
12Sun8:410.78:500.83:200.13:120.15:328:24New Moon12Sun
13Mon9:220.79:260.84:030.03:560.15:328:24New Moon13Mon
14Tue10:020.710:010.84:440.04:380.15:338:23New Moon14Tue
15Wed10:410.710:360.85:220.05:180.15:348:23Waxing Crescent15Wed
16Thu11:210.711:120.85:580.05:560.15:358:22Waxing Crescent16Thu
17Fri12:020.76:330.06:340.15:358:21Waxing Crescent17Fri
18Sat12:460.77:080.07:160.15:368:21Waxing Crescent18Sat
19Sun12:400.71:340.77:460.18:070.15:378:20First Quarter19Sun
20Mon1:330.72:240.88:330.19:120.15:388:19First Quarter20Mon
21Tue2:290.73:160.89:320.110:240.15:398:19First Quarter21Tue
22Wed3:280.74:130.810:370.111:330.15:408:18First Quarter22Wed
23Thu4:320.75:160.811:410.05:408:17Waxing Gibbous23Thu
24Fri5:410.76:200.912:350.012:420.05:418:16Waxing Gibbous24Fri
25Sat6:490.77:200.91:340.01:400.05:428:15Waxing Gibbous25Sat
26Sun7:490.88:151.02:300.02:380.05:438:14Full Moon26Sun
27Mon8:440.89:071.03:24-0.13:34-0.15:448:14Full Moon27Mon
28Tue9:370.89:581.04:17-0.14:29-0.15:458:13Full Moon28Tue
29Wed10:300.810:490.95:07-0.15:210.05:468:12Waning Gibbous29Wed
30Thu11:230.811:410.95:54-0.16:100.05:478:11Waning Gibbous30Thu
31Fri12:160.86:39-0.16:590.05:488:10Waning Gibbous31Fri
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 7:48 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 Fire Island Light, NY?

Fire Island Light, NY is currently in a transitional phase. Tonight's moon is 65% 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 (65% 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