Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide : 10:38 pm (7.4 ft)
Next high tide : in 6h 00m at 5:39 pm (11.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Aug 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:529.88:1311.81:334.71:14-0.15:458:48Waxing Crescent1Sun
2Mon7:449.38:4011.62:133.91:521.15:478:46Waxing Crescent2Mon
3Tue8:398.99:0811.42:533.32:302.45:488:45Waxing Crescent3Tue
4Wed9:378.59:3911.13:342.63:103.95:498:43First Quarter4Wed
5Thu10:458.210:1310.64:182.13:535.35:518:42First Quarter5Thu
6Fri12:128.25:071.74:466.65:528:40First Quarter6Fri
7Sat2:118.56:001.46:077.55:538:39First Quarter7Sat
8Sun3:449.26:561.08:038.05:558:37First Quarter8Sun
9Mon12:369.44:359.97:530.69:297.85:568:35Waxing Gibbous9Mon
10Tue1:369.45:1010.48:450.010:147.55:578:34Waxing Gibbous10Tue
11Wed2:329.65:3610.79:33-0.610:457.15:598:32Waxing Gibbous11Wed
12Thu3:239.95:5811.010:16-1.111:146.56:008:30Full Moon12Thu
13Fri4:1010.26:2011.310:56-1.311:455.76:018:29Full Moon13Fri
14Sat4:5710.46:4211.611:36-1.36:038:27Full Moon14Sat
15Sun5:4710.57:0811.912:204.712:15-0.96:048:25Full Moon15Sun
16Mon6:3910.57:3612.112:593.612:550.06:068:23Waning Gibbous16Mon
17Tue7:3510.38:0712.21:412.41:371.36:078:22Waning Gibbous17Tue
18Wed8:3510.08:4112.12:261.32:202.86:088:20Waning Gibbous18Wed
19Thu9:429.79:1811.93:150.53:074.46:108:18Third Quarter19Thu
20Fri11:009.310:0111.44:09-0.14:035.96:118:16Third Quarter20Fri
21Sat12:399.35:08-0.45:167.16:128:14Third Quarter21Sat
22Sun2:289.86:13-0.66:577.76:148:12Third Quarter22Sun
23Mon12:0110.33:4410.47:20-0.78:407.56:158:10Waning Crescent23Mon
24Tue1:1710.04:3411.08:25-0.89:496.86:178:09Waning Crescent24Tue
25Wed2:319.95:1311.39:23-0.910:385.96:188:07Waning Crescent25Wed
26Thu3:3410.05:4411.410:13-0.811:175.16:198:05New Moon26Thu
27Fri4:3010.16:0911.510:57-0.511:524.36:218:03New Moon27Fri
28Sat5:1910.16:3111.411:370.16:228:01New Moon28Sat
29Sun6:0610.16:5311.312:243.512:150.96:247:59New Moon29Sun
30Mon6:5210.07:1611.212:562.812:511.96:257:57Waxing Crescent30Mon
31Tue7:389.97:4111.01:282.11:273.06:267:55Waxing Crescent31Tue
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 8:08 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 5% 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 Waning Crescent (5% 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