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 5h 35m 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 - Jun 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:028.15:526.24:340.25:139:03Third Quarter1Tue
2Wed12:2611.811:31 AM7.47:055.15:351.65:139:04Third Quarter2Wed
3Thu1:1311.61:107.38:023.96:392.95:129:05Third Quarter3Thu
4Fri1:5311.42:447.78:482.77:454.15:129:06Waning Crescent4Fri
5Sat2:2711.24:008.49:251.68:505.15:119:06Waning Crescent5Sat
6Sun2:5611.05:019.39:560.69:485.95:119:07Waning Crescent6Sun
7Mon3:2310.85:5110.010:24-0.210:406.65:119:08Waning Crescent7Mon
8Tue3:4910.56:3310.610:51-0.911:277.15:109:09New Moon8Tue
9Wed4:1710.37:0911.111:20-1.45:109:09New Moon9Wed
10Thu4:4610.17:4211.412:097.411:51 AM-1.75:109:10New Moon10Thu
11Fri5:189.98:1411.612:507.612:25-1.95:099:11New Moon11Fri
12Sat5:529.68:4811.71:307.71:01-1.95:099:11Waxing Crescent12Sat
13Sun6:309.49:2511.82:117.61:41-1.85:099:12Waxing Crescent13Sun
14Mon7:129.110:0311.82:577.52:23-1.55:099:12Waxing Crescent14Mon
15Tue8:038.710:4311.83:487.13:07-0.95:099:13Waxing Crescent15Tue
16Wed9:058.211:2311.84:436.53:54-0.15:099:13First Quarter16Wed
17Thu10:217.75:415.64:451.05:099:14First Quarter17Thu
18Fri12:0311.811:48 AM7.56:364.35:402.35:099:14First Quarter18Fri
19Sat12:4211.91:217.77:272.86:423.75:099:14First Quarter19Sat
20Sun1:2111.92:518.58:151.07:495.15:099:14Waxing Gibbous20Sun
21Mon1:5912.04:099.69:01-0.78:576.15:109:15Waxing Gibbous21Mon
22Tue2:3912.05:1510.79:46-2.110:036.95:109:15Waxing Gibbous22Tue
23Wed3:2112.06:1211.610:31-3.211:047.35:109:15Full Moon23Wed
24Thu4:0511.87:0412.111:16-3.85:119:15Full Moon24Thu
25Fri4:5211.57:5212.512:037.512:02-4.05:119:15Full Moon25Fri
26Sat5:4311.18:3912.51:007.412:49-3.65:119:15Waning Gibbous26Sat
27Sun6:3710.49:2312.51:587.11:36-2.95:129:15Waning Gibbous27Sun
28Mon7:359.710:0612.32:586.72:24-1.95:129:15Waning Gibbous28Mon
29Tue8:388.810:4712.14:006.03:12-0.65:139:15Waning Gibbous29Tue
30Wed9:488.011:2711.85:055.24:010.95:149:15Third Quarter30Wed
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 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