Tides Today & Tomorrow in Fire Island Light, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Fire Island Light, NY.
Next low tide : in 3h 09m at 10:25 am (0.2 ft)
Next high tide : 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 - Apr 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:190.86:530.712:500.01:25-0.16:377:16Waning Crescent1Thu
2Fri7:180.87:470.81:470.02:16-0.16:357:17Waning Crescent2Fri
3Sat8:100.88:350.82:41-0.13:05-0.16:347:18New Moon3Sat
4Sun8:580.89:210.93:33-0.13:52-0.16:327:19New Moon4Sun
5Mon9:440.810:050.84:22-0.14:37-0.16:307:20New Moon5Mon
6Tue10:290.810:480.85:08-0.15:19-0.16:297:21New Moon6Tue
7Wed11:150.711:310.85:51-0.15:580.06:277:22Waxing Crescent7Wed
8Thu12:020.76:330.06:360.06:257:23Waxing Crescent8Thu
9Fri12:160.712:520.77:160.07:150.16:247:24Waxing Crescent9Fri
10Sat1:030.71:430.68:020.17:580.16:227:25First Quarter10Sat
11Sun1:520.72:330.68:550.18:520.26:217:26First Quarter11Sun
12Mon2:410.63:240.69:560.19:580.26:197:28First Quarter12Mon
13Tue3:320.64:170.610:570.111:030.26:187:29First Quarter13Tue
14Wed4:260.65:130.611:520.16:167:30First Quarter14Wed
15Thu5:240.66:080.612:010.212:400.16:147:31Waxing Gibbous15Thu
16Fri6:210.76:570.712:530.11:250.16:137:32Waxing Gibbous16Fri
17Sat7:100.77:400.71:410.12:070.06:117:33Waxing Gibbous17Sat
18Sun7:530.78:190.82:260.02:480.06:107:34Full Moon18Sun
19Mon8:330.78:560.83:120.03:300.06:087:35Full Moon19Mon
20Tue9:130.89:340.83:570.04:110.06:077:36Full Moon20Tue
21Wed9:540.810:140.94:43-0.14:520.06:067:37Full Moon21Wed
22Thu10:380.710:590.95:27-0.15:330.06:047:38Waning Gibbous22Thu
23Fri11:270.711:490.86:12-0.16:160.06:037:39Waning Gibbous23Fri
24Sat12:240.77:000.07:030.06:017:40Waning Gibbous24Sat
25Sun12:460.81:250.77:530.08:000.16:007:41Third Quarter25Sun
26Mon1:480.82:270.78:560.09:100.15:587:42Third Quarter26Mon
27Tue2:490.83:280.710:040.010:260.15:577:43Third Quarter27Tue
28Wed3:510.84:300.711:090.011:350.15:567:44Third Quarter28Wed
29Thu4:540.85:340.712:080.05:547:45Waning Crescent29Thu
30Fri5:580.86:340.812:370.01:010.05:537:46Waning Crescent30Fri
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 1:16 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