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 1h 32m at 7:47 am (0.1 ft)
Next high tide : 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 - Mar 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:350.73:150.610:130.010:110.06:275:43First Quarter1Sat
2Sun3:440.74:280.611:210.011:210.06:265:44Waxing Gibbous2Sun
3Mon4:570.75:370.612:200.06:245:45Waxing Gibbous3Mon
4Tue6:030.86:370.712:230.01:14-0.16:225:46Waxing Gibbous4Tue
5Wed6:590.87:290.71:20-0.12:06-0.16:215:47Full Moon5Wed
6Thu7:480.88:170.82:14-0.12:54-0.16:195:48Full Moon6Thu
7Fri8:340.89:030.83:05-0.13:39-0.16:185:50Full Moon7Fri
8Sat9:190.89:470.83:53-0.14:21-0.16:165:51Full Moon8Sat
9Sun10:030.810:310.84:38-0.15:00-0.16:155:52Waning Gibbous9Sun
10Mon10:480.711:160.75:20-0.15:37-0.16:135:53Waning Gibbous10Mon
11Tue11:340.66:020.06:130.06:115:54Waning Gibbous11Tue
12Wed12:010.712:220.66:450.06:510.16:105:55Waning Gibbous12Wed
13Thu12:480.71:110.67:360.17:370.16:085:56Third Quarter13Thu
14Fri1:350.62:020.58:360.18:370.26:075:57Third Quarter14Fri
15Sat2:250.62:560.59:420.19:450.26:055:58Third Quarter15Sat
16Sun3:190.63:560.510:430.110:490.26:035:59Third Quarter16Sun
17Mon4:210.64:590.511:370.111:440.16:026:00Waning Crescent17Mon
18Tue5:200.65:540.612:250.16:006:01Waning Crescent18Tue
19Wed6:110.76:390.612:330.11:090.05:586:03Waning Crescent19Wed
20Thu6:550.77:180.71:190.01:510.05:576:04Waning Crescent20Thu
21Fri7:340.77:550.72:040.02:310.05:556:05New Moon21Fri
22Sat8:120.88:300.72:490.03:10-0.15:536:06New Moon22Sat
23Sun8:500.89:060.83:320.03:48-0.15:526:07New Moon23Sun
24Mon9:290.79:450.84:14-0.14:26-0.15:506:08Waxing Crescent24Mon
25Tue10:130.710:290.84:57-0.15:03-0.15:486:09Waxing Crescent25Tue
26Wed11:020.711:190.85:410.05:430.05:476:10Waxing Crescent26Wed
27Thu11:580.66:310.06:290.05:456:11Waxing Crescent27Thu
28Fri12:170.81:000.67:310.07:280.05:436:12First Quarter28Fri
29Sat1:190.72:030.68:450.18:440.15:426:13First Quarter29Sat
30Sun2:240.73:090.69:590.110:030.15:406:14First Quarter30Sun
31Mon3:320.74:180.611:050.011:120.05:386:15Waxing Gibbous31Mon
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 10:44 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 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