Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide : 7:37 am (-1.2 ft)
Next high tide : in 1h 33m at 12:01 am (10.8 ft)
Sunset today : 8:38 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Nov 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:3910.23:2612.09:123.19:580.56:574:50Full Moon1Sun
2Mon4:3310.83:5611.810:013.810:32-0.46:594:49Full Moon2Mon
3Tue5:2311.24:2611.510:484.711:06-0.97:004:47Full Moon3Tue
4Wed6:1011.54:5711.111:345.511:41-1.27:024:46Full Moon4Wed
5Thu6:5511.75:3010.612:216.27:044:44Waning Gibbous5Thu
6Fri7:4011.86:0610.012:17-1.21:116.77:054:43Waning Gibbous6Fri
7Sat8:2511.76:459.412:54-0.92:067.17:074:41Waning Gibbous7Sat
8Sun9:1311.57:318.71:35-0.43:137.27:084:40Waning Gibbous8Sun
9Mon10:0511.38:288.02:200.34:387.07:104:38Third Quarter9Mon
10Tue11:0011.29:427.53:101.16:056.57:114:37Third Quarter10Tue
11Wed11:5311.111:077.34:061.97:025.87:134:36Third Quarter11Wed
12Thu12:4011.25:072.67:394.97:144:35Third Quarter12Thu
13Fri12:317.51:1911.36:103.18:074.07:164:33Waning Crescent13Fri
14Sat1:428.11:5211.47:093.68:332.97:174:32Waning Crescent14Sat
15Sun2:408.82:2111.58:024.19:001.77:194:31Waning Crescent15Sun
16Mon3:299.72:5011.68:504.69:290.47:204:30Waning Crescent16Mon
17Tue4:1510.53:2011.79:365.110:03-0.77:224:29New Moon17Tue
18Wed5:0011.23:5111.710:215.710:39-1.77:234:28New Moon18Wed
19Thu5:4611.84:2511.611:076.211:19-2.47:254:27New Moon19Thu
20Fri6:3412.35:0311.411:566.77:264:26Waxing Crescent20Fri
21Sat7:2412.55:4711.112:02-2.712:497.17:284:25Waxing Crescent21Sat
22Sun8:1712.66:3710.512:48-2.61:487.27:294:24Waxing Crescent22Sun
23Mon9:1312.57:379.71:38-2.12:567.17:304:23Waxing Crescent23Mon
24Tue10:1112.48:518.92:32-1.14:156.67:324:22First Quarter24Tue
25Wed11:0912.310:208.23:300.05:365.67:334:22First Quarter25Wed
26Thu12:0312.24:341.36:444.37:354:21First Quarter26Thu
27Fri12:018.112:5212.25:432.67:382.97:364:20Waxing Gibbous27Fri
28Sat1:368.61:3412.26:533.78:221.57:374:20Waxing Gibbous28Sat
29Sun2:549.42:1112.17:594.69:010.37:384:19Waxing Gibbous29Sun
30Mon3:5710.32:4411.98:595.49:36-0.67:404:19Waxing Gibbous30Mon
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 3:49 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 transitional phase. Tonight's moon is 31% 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 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 Third Quarter (31% illuminated). This places Coupeville, Whidbey Island, WA 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