Tides Today & Tomorrow in Fire Island Coast Guard Station, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Fire Island Coast Guard Station, NY.
Next low tide : in 36m at 10:18 pm (0.7 ft)
Next high tide (tomorrow) : 3:52 am (1.6 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8515186
Common Questions About Tides

Fire Island Coast Guard Station, NY Tides - Nov 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:221.712:472.16:390.57:370.46:224:51Third Quarter1Thu
2Fri1:161.71:432.17:410.48:330.36:234:49Third Quarter2Fri
3Sat2:221.82:502.18:460.49:270.26:244:48Waning Crescent3Sat
4Sun3:302.03:522.19:470.210:150.16:254:47Waning Crescent4Sun
5Mon4:252.24:442.210:410.111:020.06:274:46Waning Crescent5Mon
6Tue5:152.45:352.211:370.011:52-0.16:284:45Waning Crescent6Tue
7Wed6:062.56:262.212:35-0.16:294:44New Moon7Wed
8Thu6:582.77:192.212:44-0.21:30-0.26:304:43New Moon8Thu
9Fri7:492.78:092.21:34-0.32:21-0.26:314:42New Moon9Fri
10Sat8:392.79:012.12:22-0.33:10-0.26:324:41Waxing Crescent10Sat
11Sun9:322.69:572.03:10-0.24:03-0.16:344:40Waxing Crescent11Sun
12Mon10:292.510:581.94:03-0.15:020.06:354:39Waxing Crescent12Mon
13Tue11:282.311:581.85:030.16:020.16:364:38First Quarter13Tue
14Wed12:232.26:060.27:000.16:374:37First Quarter14Wed
15Thu12:561.81:192.07:090.37:580.26:384:36First Quarter15Thu
16Fri2:011.82:221.98:140.38:550.26:404:35First Quarter16Fri
17Sat3:111.83:271.99:160.39:440.26:414:34Waxing Gibbous17Sat
18Sun4:071.94:181.810:090.310:270.16:424:33Waxing Gibbous18Sun
19Mon4:501.95:001.810:570.311:080.16:434:33Waxing Gibbous19Mon
20Tue5:302.05:401.811:440.211:490.16:444:32Waxing Gibbous20Tue
21Wed6:082.16:191.812:310.26:454:31Full Moon21Wed
22Thu6:452.16:571.812:300.11:160.16:464:31Full Moon22Thu
23Fri7:222.27:351.71:110.01:560.16:484:30Full Moon23Fri
24Sat7:582.28:121.71:480.02:320.16:494:30Full Moon24Sat
25Sun8:342.28:491.72:230.03:090.16:504:29Waning Gibbous25Sun
26Mon9:122.19:291.62:580.13:480.16:514:29Waning Gibbous26Mon
27Tue9:542.110:161.63:350.14:330.26:524:28Waning Gibbous27Tue
28Wed10:412.011:081.64:190.25:220.26:534:28Waning Gibbous28Wed
29Thu11:302.011:591.65:130.26:120.26:544:27Third Quarter29Thu
30Fri12:182.06:110.27:020.16:554:27Third Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8515186)

Common Questions About Fire Island Coast Guard Station, NY Tides

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What time does the tide turn (slack tide) in Fire Island Coast Guard Station, NY today?

Slack tide in Fire Island Coast Guard Station, NY is approximately 1:05 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 Coast Guard Station, NY?

Fire Island Coast Guard Station, 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 Coast Guard Station, 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 Coast Guard Station, NY?

Tide predictions for Fire Island Coast Guard Station, 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 Coast Guard Station, NY?

Tide data for Fire Island Coast Guard Station, NY is sourced from NOAA Station #8515186. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8515186.

What is the moon phase in Fire Island Coast Guard Station, NY tonight?

Tonight the moon over Fire Island Coast Guard Station, NY is First Quarter (65% illuminated). This places Fire Island Coast Guard Station, 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