Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide : 5:06 pm (7.0 ft)
Next high tide : in 2h 21m at 12:44 pm (8.6 ft)
Sunset today : 8:39 pm
Sunrise tomorrow : 5:53 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Sep 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:599.97:4311.11:133.71:081.46:287:53Waxing Crescent1Sat
2Sun7:419.78:1211.01:453.11:432.26:297:51Waxing Crescent2Sun
3Mon8:269.58:4210.72:202.72:203.16:317:49Waxing Crescent3Mon
4Tue9:169.39:1510.42:592.22:594.16:327:47Waxing Crescent4Tue
5Wed10:129.19:5110.03:411.93:435.26:337:45First Quarter5Wed
6Thu11:188.910:349.74:301.64:386.16:357:43First Quarter6Thu
7Fri12:409.05:241.45:536.96:367:41First Quarter7Fri
8Sat2:089.46:241.07:227.16:377:38First Quarter8Sat
9Sun12:299.23:1510.07:250.68:376.96:397:36Waxing Gibbous9Sun
10Mon1:359.44:0110.68:240.09:316.36:407:34Waxing Gibbous10Mon
11Tue2:379.94:3811.19:19-0.610:145.56:427:32Waxing Gibbous11Tue
12Wed3:3310.45:1211.510:09-0.910:554.56:437:30Full Moon12Wed
13Thu4:2810.95:4511.810:56-0.911:363.46:447:28Full Moon13Thu
14Fri5:2211.36:2012.111:43-0.56:467:26Full Moon14Fri
15Sat6:1711.46:5512.212:192.212:290.36:477:24Waning Gibbous15Sat
16Sun7:1411.37:3312.11:041.21:151.46:487:22Waning Gibbous16Sun
17Mon8:1411.18:1311.81:510.42:042.76:507:20Waning Gibbous17Mon
18Tue9:1810.78:5611.32:400.02:574.16:517:18Waning Gibbous18Tue
19Wed10:2910.49:4410.63:33-0.23:595.36:537:16Third Quarter19Wed
20Thu11:5310.210:419.94:300.05:186.36:547:13Third Quarter20Thu
21Fri1:2610.35:320.37:006.56:557:11Third Quarter21Fri
22Sat2:4410.66:400.68:326.26:577:09Waning Crescent22Sat
23Sun1:128.93:4111.07:470.89:335.56:587:07Waning Crescent23Sun
24Mon2:269.04:2311.18:480.910:184.87:007:05Waning Crescent24Mon
25Tue3:289.24:5611.29:401.010:524.27:017:03Waning Crescent25Tue
26Wed4:189.55:2111.110:231.211:203.67:027:01New Moon26Wed
27Thu5:019.85:4111.011:021.511:453.17:046:59New Moon27Thu
28Fri5:4010.06:0110.911:372.07:056:57New Moon28Fri
29Sat6:1710.26:2410.912:092.512:112.67:076:55New Moon29Sat
30Sun6:5510.36:4910.812:361.912:453.27:086:53New Moon30Sun
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 2:55 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 neap phase. Tonight's moon is 42% 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 Third Quarter (42% 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