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 18m at 11:30 pm (0.2 ft)
Next high tide (tomorrow) : 4:34 am (0.6 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 - Nov 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:230.86:420.812:460.01:170.16:224:50Waxing Gibbous1Sat
2Sun7:040.87:230.81:260.02:000.06:244:48Full Moon2Sun
3Mon7:410.88:020.72:050.02:420.06:254:47Full Moon3Mon
4Tue8:170.88:410.72:440.03:230.06:264:46Full Moon4Tue
5Wed8:520.89:190.73:220.04:030.06:274:45Full Moon5Wed
6Thu9:250.89:590.73:590.14:410.16:284:44Waning Gibbous6Thu
7Fri9:590.810:400.64:350.15:180.16:304:43Waning Gibbous7Fri
8Sat10:330.711:250.65:090.15:540.16:314:42Waning Gibbous8Sat
9Sun11:140.75:440.16:350.16:324:41Waning Gibbous9Sun
10Mon12:150.612:030.76:240.27:230.16:334:40Third Quarter10Mon
11Tue1:060.612:590.77:180.28:240.16:344:39Third Quarter11Tue
12Wed1:570.61:550.78:300.29:270.16:354:38Third Quarter12Wed
13Thu2:500.72:540.79:440.210:250.16:374:37Third Quarter13Thu
14Fri3:460.73:570.710:490.111:180.06:384:36Waning Crescent14Fri
15Sat4:450.85:010.811:470.06:394:35Waning Crescent15Sat
16Sun5:410.86:010.812:090.012:420.06:404:34Waning Crescent16Sun
17Mon6:340.96:550.812:59-0.11:36-0.16:414:34New Moon17Mon
18Tue7:241.07:470.81:50-0.12:30-0.16:424:33New Moon18Tue
19Wed8:141.08:390.82:42-0.13:24-0.16:444:32New Moon19Wed
20Thu9:051.09:330.83:34-0.14:16-0.16:454:31Waxing Crescent20Thu
21Fri9:580.910:300.84:26-0.15:07-0.16:464:31Waxing Crescent21Fri
22Sat10:540.911:300.75:17-0.15:58-0.16:474:30Waxing Crescent22Sat
23Sun11:530.86:100.06:520.06:484:30Waxing Crescent23Sun
24Mon12:310.712:510.87:080.17:510.06:494:29First Quarter24Mon
25Tue1:290.71:470.78:130.18:520.06:504:29First Quarter25Tue
26Wed2:240.72:410.79:210.19:500.06:514:28First Quarter26Wed
27Thu3:180.73:360.710:230.110:430.06:534:28Waxing Gibbous27Thu
28Fri4:120.74:310.711:180.111:290.06:544:27Waxing Gibbous28Fri
29Sat5:050.75:250.712:070.16:554:27Waxing Gibbous29Sat
30Sun5:530.76:130.712:120.012:520.06:564:27Waxing Gibbous30Sun
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 2:02 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 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