Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 5h 15m at 12:17 pm (-1.3 ft)
Next high tide : 7:44 pm (11.5 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:44 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Mar 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:0512.79:0210.71:492.42:320.37:526:54Waning Gibbous1Sat
2Sun8:4512.310:1010.22:383.93:220.17:506:55Waning Gibbous2Sun
3Mon9:2811.611:309.93:325.34:160.27:486:57Third Quarter3Mon
4Tue10:1810.84:386.45:150.57:466:58Third Quarter4Tue
5Wed1:099.811:18 AM10.06:087.16:200.87:447:00Third Quarter5Wed
6Thu2:4110.112:319.47:577.17:281.07:427:01Third Quarter6Thu
7Fri3:4510.61:489.29:166.68:321.17:407:03Waning Crescent7Fri
8Sat4:2910.92:569.310:075.99:261.17:387:04Waning Crescent8Sat
9Sun5:0211.03:519.510:455.210:101.27:367:06Waning Crescent9Sun
10Mon5:2611.04:389.811:154.610:481.47:347:07Waning Crescent10Mon
11Tue5:4511.15:1910.011:403.911:221.77:327:09New Moon11Tue
12Wed6:0211.15:5810.112:043.27:307:10New Moon12Wed
13Thu6:2111.26:3710.212:292.57:287:12New Moon13Thu
14Fri6:4411.27:1610.312:282.812:581.87:267:13New Moon14Fri
15Sat7:1011.27:5710.41:013.51:311.27:247:15Waxing Crescent15Sat
16Sun7:3811.18:4210.31:364.22:070.77:227:16Waxing Crescent16Sun
17Mon8:0810.99:3110.22:145.02:470.47:207:18Waxing Crescent17Mon
18Tue8:4110.610:299.92:555.83:320.37:187:19Waxing Crescent18Tue
19Wed9:2010.211:389.83:446.64:240.37:167:21First Quarter19Wed
20Thu10:109.84:487.25:240.47:137:22First Quarter20Thu
21Fri12:589.811:20 AM9.56:137.46:290.47:117:24First Quarter21Fri
22Sat2:1210.212:429.47:416.97:350.37:097:25Waxing Gibbous22Sat
23Sun3:0610.72:019.68:486.08:370.37:077:27Waxing Gibbous23Sun
24Mon3:4711.23:1210.19:394.79:330.47:057:28Waxing Gibbous24Mon
25Tue4:2211.64:1510.710:233.210:240.87:037:30Waxing Gibbous25Tue
26Wed4:5612.05:1411.111:061.811:131.47:017:31Full Moon26Wed
27Thu5:3012.36:1011.411:480.56:597:32Full Moon27Thu
28Fri6:0512.37:0611.612:002.312:31-0.56:577:34Full Moon28Fri
29Sat6:4312.28:0211.512:483.31:14-1.16:557:35Waning Gibbous29Sat
30Sun7:2211.89:0011.31:374.31:59-1.36:537:37Waning Gibbous30Sun
31Mon8:0411.210:0011.02:295.32:46-1.06:517:38Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447929)

Common Questions About Coupeville, Whidbey Island, WA Tides

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What time does the tide turn (slack tide) in Coupeville, Whidbey Island, WA today?

Slack tide in Coupeville, Whidbey Island, WA is approximately 4:00 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 Coupeville, Whidbey Island, WA?

Coupeville, Whidbey Island, WA is currently in a spring phase. Tonight's moon is 99% 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 near their weekly maximum.

What datum are Coupeville, Whidbey Island, WA 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 Coupeville, Whidbey Island, WA?

Tide predictions for Coupeville, Whidbey Island, WA 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 Coupeville, Whidbey Island, WA?

Tide data for Coupeville, Whidbey Island, WA is sourced from NOAA Station #9447929. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9447929.

What is the moon phase in Coupeville, Whidbey Island, WA tonight?

Tonight the moon over Coupeville, Whidbey Island, WA is Full Moon (99% illuminated). This places Coupeville, Whidbey Island, WA in a spring tide cycle, so tidal ranges are near their weekly maximum 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