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 1h 41m 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 - Sep 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:540.71:270.77:320.18:070.26:197:26First Quarter1Sun
2Mon1:420.72:130.78:130.29:020.26:207:24First Quarter2Mon
3Tue2:310.63:000.79:020.210:050.26:217:23First Quarter3Tue
4Wed3:210.63:480.710:030.211:070.26:227:21First Quarter4Wed
5Thu4:150.64:410.711:060.26:237:19First Quarter5Thu
6Fri5:150.65:390.712:040.212:040.26:247:18Waxing Gibbous6Fri
7Sat6:140.66:340.812:540.112:560.26:257:16Waxing Gibbous7Sat
8Sun7:060.77:220.81:400.11:440.16:267:14Waxing Gibbous8Sun
9Mon7:500.78:040.82:240.12:300.16:277:13Full Moon9Mon
10Tue8:300.78:440.93:070.03:160.16:287:11Full Moon10Tue
11Wed9:090.89:240.93:490.04:030.06:297:09Full Moon11Wed
12Thu9:480.810:060.94:300.04:490.06:307:08Full Moon12Thu
13Fri10:290.810:500.85:100.05:340.06:317:06Waning Gibbous13Fri
14Sat11:140.911:390.85:500.06:200.06:327:04Waning Gibbous14Sat
15Sun12:050.96:310.07:090.06:337:03Waning Gibbous15Sun
16Mon12:340.81:010.87:150.08:070.16:347:01Third Quarter16Mon
17Tue1:350.72:010.88:080.19:160.16:356:59Third Quarter17Tue
18Wed2:370.73:020.89:150.110:290.16:366:58Third Quarter18Wed
19Thu3:400.74:050.810:300.111:380.16:376:56Third Quarter19Thu
20Fri4:450.75:120.811:400.16:386:54Waning Crescent20Fri
21Sat5:530.76:170.812:380.112:420.16:386:53Waning Crescent21Sat
22Sun6:540.87:140.81:310.01:370.16:396:51Waning Crescent22Sun
23Mon7:460.88:030.92:190.02:290.06:406:49New Moon23Mon
24Tue8:320.88:470.93:050.03:180.06:416:48New Moon24Tue
25Wed9:150.89:290.83:490.04:040.06:426:46New Moon25Wed
26Thu9:550.910:090.84:290.04:480.06:436:44New Moon26Thu
27Fri10:350.810:500.85:070.05:290.06:446:43Waxing Crescent27Fri
28Sat11:150.811:310.75:420.16:080.16:456:41Waxing Crescent28Sat
29Sun10:560.811:160.75:160.15:470.15:465:39Waxing Crescent29Sun
30Mon11:400.85:490.16:290.15:475:38Waxing Crescent30Mon
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