Tides Today & Tomorrow in Fire Island Light, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Fire Island Light, NY.
Next low tide : 11:30 pm (0.2 ft)
Next high tide : in 0m at 4:07 pm (0.7 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 - May 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:330.89:570.94:18-0.14:30-0.15:517:48Full Moon1Fri
2Sat10:240.810:480.95:09-0.15:19-0.15:507:49Waning Gibbous2Sat
3Sun11:190.811:430.95:59-0.16:08-0.15:497:50Waning Gibbous3Sun
4Mon12:180.86:50-0.17:000.05:487:51Waning Gibbous4Mon
5Tue12:420.91:200.77:44-0.17:580.05:467:52Waning Gibbous5Tue
6Wed1:420.82:210.78:450.09:040.15:457:53Third Quarter6Wed
7Thu2:410.83:190.79:490.010:150.15:447:54Third Quarter7Thu
8Fri3:390.84:170.710:520.011:210.15:437:55Third Quarter8Fri
9Sat4:380.75:160.711:490.05:427:56Waning Crescent9Sat
10Sun5:370.76:130.812:200.112:390.05:417:57Waning Crescent10Sun
11Mon6:330.77:030.81:130.11:250.05:407:58Waning Crescent11Mon
12Tue7:240.77:470.82:010.02:080.05:397:59Waning Crescent12Tue
13Wed8:080.78:270.82:460.02:490.05:388:00New Moon13Wed
14Thu8:500.79:050.83:300.03:300.05:378:01New Moon14Thu
15Fri9:310.79:410.84:120.04:100.05:368:02New Moon15Fri
16Sat10:110.710:170.84:530.04:480.15:358:03New Moon16Sat
17Sun10:520.710:520.85:320.05:260.15:348:04Waxing Crescent17Sun
18Mon11:350.711:280.76:090.06:010.15:338:05Waxing Crescent18Mon
19Tue12:200.66:460.16:370.15:328:05Waxing Crescent19Tue
20Wed12:060.71:070.67:230.17:150.25:318:06Waxing Crescent20Wed
21Thu12:500.71:540.68:060.18:010.25:308:07First Quarter21Thu
22Fri1:390.72:410.68:570.19:030.25:308:08First Quarter22Fri
23Sat2:310.73:280.79:560.110:150.25:298:09First Quarter23Sat
24Sun3:250.74:190.710:540.111:220.15:288:10First Quarter24Sun
25Mon4:240.75:150.711:490.15:278:11Waxing Gibbous25Mon
26Tue5:280.76:130.812:220.112:410.05:278:12Waxing Gibbous26Tue
27Wed6:310.77:070.91:180.01:310.05:268:13Waxing Gibbous27Wed
28Thu7:290.87:580.92:120.02:220.05:268:13Full Moon28Thu
29Fri8:220.88:481.03:06-0.13:15-0.15:258:14Full Moon29Fri
30Sat9:150.89:391.04:00-0.14:08-0.15:258:15Full Moon30Sat
31Sun10:090.810:321.04:53-0.15:01-0.15:248:16Full Moon31Sun
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 7:48 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 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