Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 4h 11m at 5:46 am (4.0 ft)
Next high tide : 10:57 am (7.6 ft)
Sunset today : 9:15 pm
Sunrise tomorrow : 5:10 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Sep 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:3210.96:0111.811:01-1.111:463.86:287:52New Moon1Sat
2Sun5:2511.06:3411.911:47-0.66:307:50New Moon2Sun
3Mon6:1810.97:0811.912:283.012:310.16:317:48New Moon3Mon
4Tue7:1010.67:4211.71:102.41:141.26:327:46Waxing Crescent4Tue
5Wed8:0310.38:1711.41:521.91:592.36:347:44Waxing Crescent5Wed
6Thu8:5810.08:5410.92:351.52:453.56:357:42Waxing Crescent6Thu
7Fri9:579.69:3510.33:201.43:354.76:377:40First Quarter7Fri
8Sat11:069.310:209.74:081.44:365.86:387:38First Quarter8Sat
9Sun12:309.25:021.55:576.56:397:36First Quarter9Sun
10Mon2:019.46:011.77:386.66:417:34First Quarter10Mon
11Tue12:208.83:099.87:031.78:556.36:427:32Waxing Gibbous11Tue
12Wed1:288.73:5510.28:031.59:445.96:437:30Waxing Gibbous12Wed
13Thu2:298.94:2910.48:551.310:185.46:457:27Waxing Gibbous13Thu
14Fri3:219.24:5510.79:411.010:454.86:467:25Waxing Gibbous14Fri
15Sat4:059.65:1810.910:210.911:104.26:487:23Full Moon15Sat
16Sun4:4710.05:4211.110:580.911:373.56:497:21Full Moon16Sun
17Mon5:2710.36:0711.211:351.16:507:19Full Moon17Mon
18Tue6:0910.66:3511.412:082.612:131.56:527:17Full Moon18Tue
19Wed6:5310.77:0611.412:431.812:522.26:537:15Waning Gibbous19Wed
20Thu7:4110.87:3911.31:211.01:333.06:547:13Waning Gibbous20Thu
21Fri8:3310.78:1611.12:040.42:184.06:567:11Waning Gibbous21Fri
22Sat9:3110.58:5810.82:500.03:085.06:577:09Waning Gibbous22Sat
23Sun10:3710.39:4810.33:42-0.14:095.96:597:07Third Quarter23Sun
24Mon11:5510.210:509.84:41-0.15:266.57:007:04Third Quarter24Mon
25Tue1:2110.35:450.16:576.57:017:02Third Quarter25Tue
26Wed12:069.42:3410.76:540.28:205.97:037:00Waning Crescent26Wed
27Thu1:289.43:2811.18:010.39:214.97:046:58Waning Crescent27Thu
28Fri2:429.74:1011.59:020.410:083.97:066:56Waning Crescent28Fri
29Sat3:4710.14:4611.79:560.610:492.97:076:54New Moon29Sat
30Sun4:4310.55:1811.710:451.011:272.07:086:52New Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447929)

Common Questions About Coupeville, Whidbey Island, WA Tides

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

Slack tide in Coupeville, Whidbey Island, WA is approximately 8:21 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 Coupeville, Whidbey Island, WA?

Coupeville, Whidbey Island, WA is currently in a neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Coupeville, Whidbey Island, WA in a neap tide cycle, so tidal ranges are near their weekly minimum 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