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 4h 14m 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 - Feb 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:170.78:470.62:490.03:32-0.17:035:10Full Moon1Sun
2Mon8:530.79:260.73:32-0.14:10-0.17:025:11Full Moon2Mon
3Tue9:300.710:050.74:13-0.14:47-0.17:015:12Waning Gibbous3Tue
4Wed10:110.710:490.74:54-0.15:24-0.17:005:13Waning Gibbous4Wed
5Thu10:570.711:380.75:36-0.16:02-0.16:595:14Waning Gibbous5Thu
6Fri11:490.76:230.06:46-0.16:575:16Waning Gibbous6Fri
7Sat12:320.712:460.67:190.07:400.06:565:17Third Quarter7Sat
8Sun1:280.71:460.68:290.08:470.06:555:18Third Quarter8Sun
9Mon3:270.73:490.610:420.010:580.07:546:19Third Quarter9Mon
10Tue4:300.74:570.611:510.07:536:21Waning Crescent10Tue
11Wed5:370.76:080.612:040.012:53-0.17:526:22Waning Crescent11Wed
12Thu6:420.87:110.71:05-0.11:49-0.17:506:23Waning Crescent12Thu
13Fri7:390.88:060.72:01-0.12:42-0.17:496:24Waning Crescent13Fri
14Sat8:300.88:560.72:56-0.13:33-0.27:486:25New Moon14Sat
15Sun9:180.89:440.73:48-0.14:21-0.27:476:27New Moon15Sun
16Mon10:040.810:300.74:37-0.15:05-0.27:456:28New Moon16Mon
17Tue10:490.811:150.75:22-0.15:46-0.17:446:29Waxing Crescent17Tue
18Wed11:340.76:05-0.16:25-0.17:436:30Waxing Crescent18Wed
19Thu12:000.712:200.76:470.07:03-0.17:416:31Waxing Crescent19Thu
20Fri12:460.71:070.67:300.07:410.07:406:33Waxing Crescent20Fri
21Sat1:320.61:550.68:170.18:240.07:396:34First Quarter21Sat
22Sun2:180.62:440.69:130.19:160.17:376:35First Quarter22Sun
23Mon3:050.63:340.510:160.110:160.17:366:36First Quarter23Mon
24Tue3:540.64:280.511:190.111:170.17:346:37First Quarter24Tue
25Wed4:490.65:280.512:150.17:336:38Waxing Gibbous25Wed
26Thu5:480.66:260.612:130.11:050.17:316:40Waxing Gibbous26Thu
27Fri6:430.67:170.61:050.01:520.07:306:41Waxing Gibbous27Fri
28Sat7:310.78:010.61:530.02:360.07:286:42Waxing Gibbous28Sat
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