Tides Today & Tomorrow in Fire Island Light, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Fire Island Light, NY.
Next low tide : in 5h 23m at 8:26 pm (0.2 ft)
Next high tide (tomorrow) : 1:57 am (0.7 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8515014
Common Questions About Tides

Fire Island Light, NY Tides - May 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:040.89:240.93:47-0.13:55-0.15:517:48New Moon1Wed
2Thu9:550.810:130.94:39-0.14:44-0.15:507:49New Moon2Thu
3Fri10:480.811:050.95:31-0.15:33-0.15:497:50Waxing Crescent3Fri
4Sat11:440.86:21-0.16:230.05:487:51Waxing Crescent4Sat
5Sun12:010.912:450.77:14-0.17:150.05:467:52Waxing Crescent5Sun
6Mon1:020.81:470.78:120.08:150.15:457:53First Quarter6Mon
7Tue2:030.82:470.79:160.09:240.15:447:54First Quarter7Tue
8Wed3:020.73:450.710:220.110:350.15:437:55First Quarter8Wed
9Thu4:000.74:430.711:220.111:400.15:427:56First Quarter9Thu
10Fri4:590.75:410.712:150.15:417:57Waxing Gibbous10Fri
11Sat5:570.76:330.712:350.11:010.05:407:58Waxing Gibbous11Sat
12Sun6:500.77:190.81:240.11:420.05:397:59Waxing Gibbous12Sun
13Mon7:360.78:000.82:100.12:220.05:388:00Waxing Gibbous13Mon
14Tue8:170.78:370.82:530.03:000.05:378:01Full Moon14Tue
15Wed8:560.79:130.83:360.03:390.15:368:02Full Moon15Wed
16Thu9:340.79:480.84:170.04:170.15:358:03Full Moon16Thu
17Fri10:120.710:220.84:570.04:530.15:348:04Full Moon17Fri
18Sat10:510.610:560.85:350.05:280.15:338:05Waning Gibbous18Sat
19Sun11:310.611:320.76:120.16:020.15:328:06Waning Gibbous19Sun
20Mon12:150.66:490.16:360.25:318:06Waning Gibbous20Mon
21Tue12:130.71:040.67:290.17:140.25:308:07Waning Gibbous21Tue
22Wed1:020.71:540.68:150.18:040.25:308:08Third Quarter22Wed
23Thu1:560.72:450.69:110.19:160.25:298:09Third Quarter23Thu
24Fri2:510.73:360.710:120.110:340.25:288:10Third Quarter24Fri
25Sat3:480.74:310.711:100.111:420.15:278:11Third Quarter25Sat
26Sun4:500.75:300.812:040.05:278:12Waning Crescent26Sun
27Mon5:550.76:290.812:420.112:550.05:268:13Waning Crescent27Mon
28Tue6:550.87:230.91:390.01:450.05:268:13Waning Crescent28Tue
29Wed7:510.88:141.02:340.02:37-0.15:258:14New Moon29Wed
30Thu8:440.89:041.03:29-0.13:30-0.15:258:15New Moon30Thu
31Fri9:380.89:551.04:24-0.14:23-0.15:248:16New Moon31Fri
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 11:11 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 36% 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 (36% 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