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 1h 55m 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 - Oct 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:5610.35:3710.911:393.67:106:50Full Moon1Tue
2Wed6:3610.66:0310.912:010.812:144.27:116:48Full Moon2Wed
3Thu7:1710.96:3110.812:340.012:514.97:126:46Waning Gibbous3Thu
4Fri8:0111.07:0210.71:09-0.51:315.67:146:44Waning Gibbous4Fri
5Sat8:5011.07:3710.41:49-0.82:156.27:156:42Waning Gibbous5Sat
6Sun9:4410.88:1810.12:34-0.93:076.87:176:40Waning Gibbous6Sun
7Mon10:4610.79:109.63:25-0.74:127.27:186:38Third Quarter7Mon
8Tue11:5710.610:239.14:22-0.35:347.27:206:36Third Quarter8Tue
9Wed1:0810.75:260.27:026.57:216:34Third Quarter9Wed
10Thu2:0511.06:350.68:115.47:226:32Waning Crescent10Thu
11Fri1:238.92:5011.37:421.19:033.97:246:30Waning Crescent11Fri
12Sat2:449.43:2811.68:441.69:472.47:256:28Waning Crescent12Sat
13Sun3:5210.14:0211.99:402.210:280.97:276:26Waning Crescent13Sun
14Mon4:5310.74:3512.010:323.011:07-0.37:286:24New Moon14Mon
15Tue5:4811.35:0812.011:213.811:46-1.27:306:22New Moon15Tue
16Wed6:4111.65:4311.712:094.77:316:20New Moon16Wed
17Thu7:3211.86:2011.312:25-1.712:585.57:336:18Waxing Crescent17Thu
18Fri8:2311.86:5910.71:05-1.81:496.17:346:17Waxing Crescent18Fri
19Sat9:1411.67:4210.01:46-1.52:456.67:366:15Waxing Crescent19Sat
20Sun10:0811.38:319.32:30-0.93:506.97:376:13Waxing Crescent20Sun
21Mon11:0611.09:308.53:18-0.15:116.97:396:11First Quarter21Mon
22Tue12:0710.84:100.86:406.57:406:09First Quarter22Tue
23Wed1:0410.65:091.77:485.77:426:07First Quarter23Wed
24Thu12:077.71:5210.66:122.58:364.87:436:06First Quarter24Thu
25Fri1:337.82:2910.77:163.19:113.97:456:04Waxing Gibbous25Fri
26Sat2:458.32:5910.78:163.79:382.97:466:02Waxing Gibbous26Sat
27Sun2:448.92:2510.88:084.29:031.96:485:00Waxing Gibbous27Sun
28Mon3:339.62:5010.98:534.79:290.96:504:59Waxing Gibbous28Mon
29Tue4:1510.23:1611.09:355.29:57-0.16:514:57Full Moon29Tue
30Wed4:5510.83:4311.010:155.710:29-0.96:534:55Full Moon30Wed
31Thu5:3511.34:1311.010:556.211:04-1.66:544:54Full Moon31Thu
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