Tides Today & Tomorrow in Fire Island Light, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Fire Island Light, NY.
Next low tide : 8:26 pm (0.2 ft)
Next high tide : in 3h 05m at 1:42 pm (0.8 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 - Oct 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:040.612:260.76:240.27:170.25:485:36First Quarter1Tue
2Wed12:550.61:150.77:070.28:180.25:495:34First Quarter2Wed
3Thu1:470.62:050.78:090.29:240.25:505:33First Quarter3Thu
4Fri2:410.62:580.79:240.310:250.25:525:31First Quarter4Fri
5Sat3:370.63:550.710:300.211:180.15:535:29Waxing Gibbous5Sat
6Sun4:360.64:540.711:260.25:545:28Waxing Gibbous6Sun
7Mon5:300.75:460.812:050.112:160.15:555:26Waxing Gibbous7Mon
8Tue6:160.76:330.812:480.11:040.15:565:24Waxing Gibbous8Tue
9Wed6:580.87:160.81:310.01:520.05:575:23Full Moon9Wed
10Thu7:390.97:590.92:140.02:400.05:585:21Full Moon10Thu
11Fri8:200.98:440.92:570.03:290.05:595:20Full Moon11Fri
12Sat9:040.99:310.83:41-0.14:180.06:005:18Waning Gibbous12Sat
13Sun9:510.910:230.84:250.05:060.06:015:17Waning Gibbous13Sun
14Mon10:440.911:220.75:100.05:580.06:025:15Waning Gibbous14Mon
15Tue11:430.95:580.06:550.06:035:13Waning Gibbous15Tue
16Wed12:250.712:470.86:550.18:020.16:045:12Third Quarter16Wed
17Thu1:290.71:500.88:040.19:140.16:055:10Third Quarter17Thu
18Fri2:320.72:520.89:190.110:210.16:065:09Third Quarter18Fri
19Sat3:350.73:560.810:290.111:180.16:075:07Waning Crescent19Sat
20Sun4:380.74:580.811:300.16:095:06Waning Crescent20Sun
21Mon5:360.85:540.812:090.012:230.16:105:05Waning Crescent21Mon
22Tue6:250.86:410.812:540.01:120.06:115:03Waning Crescent22Tue
23Wed7:090.87:240.81:360.01:570.06:125:02New Moon23Wed
24Thu7:480.98:030.82:160.02:420.06:135:00New Moon24Thu
25Fri8:260.98:420.72:550.03:240.06:144:59New Moon25Fri
26Sat9:020.89:200.73:320.04:040.06:154:58New Moon26Sat
27Sun9:380.810:000.74:070.14:430.16:164:56Waxing Crescent27Sun
28Mon10:160.810:420.64:410.15:200.16:184:55Waxing Crescent28Mon
29Tue10:550.711:280.65:140.15:590.16:194:54Waxing Crescent29Tue
30Wed11:390.75:480.26:420.16:204:52Waxing Crescent30Wed
31Thu12:210.612:290.76:260.27:340.26:214:51First Quarter31Thu
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 5:04 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