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

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Fire Island Coast Guard Station, NY.
Next low tide : in 2h 09m at 6:35 am (0.4 ft)
Next high tide : 12:55 pm (2.2 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8515186
Common Questions About Tides

Fire Island Coast Guard Station, NY Tides - Sep 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:011.73:562.29:190.510:280.76:197:26First Quarter1Mon
2Tue4:171.75:002.210:190.511:210.66:207:25Waxing Gibbous2Tue
3Wed5:161.75:492.211:120.56:217:23Waxing Gibbous3Wed
4Thu6:021.86:322.312:080.611:59 AM0.56:227:21Waxing Gibbous4Thu
5Fri6:431.97:122.312:540.612:460.46:237:20Waxing Gibbous5Fri
6Sat7:242.07:502.31:380.51:340.46:247:18Full Moon6Sat
7Sun8:032.08:252.32:170.42:180.46:257:16Full Moon7Sun
8Mon8:402.18:592.32:510.42:570.36:267:15Full Moon8Mon
9Tue9:152.29:312.23:220.43:330.36:277:13Full Moon9Tue
10Wed9:502.210:052.23:520.44:100.46:287:11Waning Gibbous10Wed
11Thu10:272.310:422.14:220.44:490.46:297:10Waning Gibbous11Thu
12Fri11:102.311:252.04:550.45:360.56:307:08Waning Gibbous12Fri
13Sat11:582.35:350.56:300.66:317:06Waning Gibbous13Sat
14Sun12:131.912:492.36:230.57:280.66:327:05Third Quarter14Sun
15Mon1:021.81:422.37:170.58:310.76:337:03Third Quarter15Mon
16Tue1:551.82:452.38:190.59:410.66:347:01Third Quarter16Tue
17Wed3:041.84:032.49:290.410:440.56:357:00Waning Crescent17Wed
18Thu4:251.85:092.510:370.311:380.46:366:58Waning Crescent18Thu
19Fri5:292.06:042.511:370.26:376:56Waning Crescent19Fri
20Sat6:242.26:562.612:290.312:360.16:386:55Waning Crescent20Sat
21Sun7:182.47:472.61:210.21:360.16:396:53New Moon21Sun
22Mon8:102.58:352.52:100.12:310.06:396:51New Moon22Mon
23Tue9:002.69:212.42:550.03:220.06:406:50New Moon23Tue
24Wed9:472.610:072.33:360.04:100.16:416:48Waxing Crescent24Wed
25Thu10:352.610:552.14:180.15:000.26:426:46Waxing Crescent25Thu
26Fri11:282.511:482.05:020.25:560.36:436:45Waxing Crescent26Fri
27Sat12:222.45:530.36:540.56:446:43Waxing Crescent27Sat
28Sun12:411.912:142.35:480.56:530.65:455:41First Quarter28Sun
29Mon12:321.81:082.26:450.67:540.75:465:40First Quarter29Mon
30Tue1:281.72:132.17:460.68:570.75:475:38First Quarter30Tue
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 9:45 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 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 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 (36% 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