Tides Today & Tomorrow in Fire Island Light, NY

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Fire Island Light, NY.
Next low tide : in 4h 10m at 7:35 pm (0.1 ft)
Next high tide (tomorrow) : 1:08 am (0.7 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8515014
Common Questions About Tides

Fire Island Light, NY Tides - Apr 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:510.62:250.59:020.19:100.25:366:17Third Quarter1Thu
2Fri2:450.63:220.510:070.110:170.25:346:18Third Quarter2Fri
3Sat3:430.64:230.611:030.111:160.25:326:19Waning Crescent3Sat
4Sun4:440.65:210.611:510.15:316:20Waning Crescent4Sun
5Mon5:390.66:090.612:060.112:340.15:296:21Waning Crescent5Mon
6Tue6:260.76:500.712:520.11:150.05:276:22Waning Crescent6Tue
7Wed7:060.77:270.71:360.11:530.05:266:23New Moon7Wed
8Thu7:430.78:000.82:190.02:310.05:246:24New Moon8Thu
9Fri8:190.78:320.83:010.03:080.05:236:25New Moon9Fri
10Sat8:540.79:030.83:410.03:440.05:216:26New Moon10Sat
11Sun9:310.79:370.84:210.04:190.05:196:27Waxing Crescent11Sun
12Mon10:110.710:170.85:000.04:540.05:186:28Waxing Crescent12Mon
13Tue10:590.611:040.85:410.05:310.05:166:29Waxing Crescent13Tue
14Wed11:550.66:280.06:160.15:156:30Waxing Crescent14Wed
15Thu12:030.812:570.67:260.17:160.15:136:31First Quarter15Thu
16Fri1:080.72:000.68:390.18:360.15:126:33First Quarter16Fri
17Sat2:140.73:040.69:510.19:570.15:106:34First Quarter17Sat
18Sun3:210.74:110.710:540.011:070.15:096:35Waxing Gibbous18Sun
19Mon4:300.75:150.711:490.05:076:36Waxing Gibbous19Mon
20Tue5:350.86:110.812:070.012:40-0.15:066:37Waxing Gibbous20Tue
21Wed6:300.87:010.91:030.01:28-0.15:046:38Waxing Gibbous21Wed
22Thu7:200.87:470.91:55-0.12:15-0.15:036:39Full Moon22Thu
23Fri8:070.88:310.92:46-0.13:00-0.15:016:40Full Moon23Fri
24Sat8:530.89:150.93:35-0.13:44-0.15:006:41Full Moon24Sat
25Sun10:390.710:590.85:21-0.15:260.05:597:42Waning Gibbous25Sun
26Mon11:270.711:440.86:040.06:060.05:577:43Waning Gibbous26Mon
27Tue12:180.66:470.06:460.15:567:44Waning Gibbous27Tue
28Wed12:320.71:110.67:320.17:290.25:557:45Waning Gibbous28Wed
29Thu1:240.72:050.68:220.18:210.25:537:46Third Quarter29Thu
30Fri2:160.72:570.69:200.19:280.25:527:47Third Quarter30Fri
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 10:21 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 27% 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 Waxing Crescent (27% 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