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 1h 56m 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 - Jan 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:270.77:540.61:460.02:360.07:164:36Full Moon1Thu
2Fri8:030.78:340.62:290.03:180.07:164:37Full Moon2Fri
3Sat8:380.79:120.63:110.03:57-0.17:164:37Full Moon3Sat
4Sun9:120.79:500.63:510.04:35-0.17:164:38Waning Gibbous4Sun
5Mon9:480.710:300.64:300.05:110.07:164:39Waning Gibbous5Mon
6Tue10:270.711:140.65:080.05:470.07:164:40Waning Gibbous6Tue
7Wed11:120.75:480.06:260.07:164:41Waning Gibbous7Wed
8Thu12:040.612:050.76:350.07:110.07:164:42Third Quarter8Thu
9Fri12:560.61:020.77:340.08:080.07:164:43Third Quarter9Fri
10Sat1:510.72:010.68:480.09:130.07:164:44Third Quarter10Sat
11Sun2:480.73:040.610:010.010:190.07:164:45Third Quarter11Sun
12Mon3:500.74:120.611:080.011:20-0.17:154:46Waning Crescent12Mon
13Tue4:550.85:220.612:08-0.17:154:47Waning Crescent13Tue
14Wed5:570.86:240.712:18-0.11:05-0.17:154:48Waning Crescent14Wed
15Thu6:530.97:200.71:14-0.12:00-0.17:144:49New Moon15Thu
16Fri7:450.98:120.72:09-0.12:53-0.27:144:51New Moon16Fri
17Sat8:350.99:030.73:03-0.13:43-0.27:134:52New Moon17Sat
18Sun9:240.99:540.73:54-0.14:30-0.27:134:53Waxing Crescent18Sun
19Mon10:130.810:450.74:43-0.15:15-0.27:124:54Waxing Crescent19Mon
20Tue11:030.811:360.75:29-0.15:58-0.17:124:55Waxing Crescent20Tue
21Wed11:540.76:160.06:41-0.17:114:56Waxing Crescent21Wed
22Thu12:270.712:440.77:050.07:270.07:114:57First Quarter22Thu
23Fri1:160.61:330.68:010.18:180.07:104:59First Quarter23Fri
24Sat2:030.62:210.69:030.19:120.17:095:00First Quarter24Sat
25Sun2:510.63:130.510:040.110:060.17:095:01First Quarter25Sun
26Mon3:420.64:080.511:010.110:590.17:085:02Waxing Gibbous26Mon
27Tue4:370.65:070.511:520.111:480.07:075:03Waxing Gibbous27Tue
28Wed5:310.66:000.612:390.07:065:05Waxing Gibbous28Wed
29Thu6:190.76:480.612:350.01:240.07:055:06Waxing Gibbous29Thu
30Fri7:010.77:300.61:200.02:080.07:045:07Full Moon30Fri
31Sat7:400.78:090.62:050.02:51-0.17:045:08Full Moon31Sat
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