Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide (tomorrow) : 7:30 am (0.6 ft)
Next high tide (tomorrow) : in 4h 59m at 12:05 am (10.5 ft)
Sunset today : 9:00 pm
Sunrise tomorrow : 5:34 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Sep 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:549.610:0611.14:030.34:105.46:297:51First Quarter1Sat
2Sun12:349.65:010.05:276.76:307:49First Quarter2Sun
3Mon2:2010.06:030.07:167.46:317:47First Quarter3Mon
4Tue3:3710.77:090.08:577.16:337:45Waxing Gibbous4Tue
5Wed1:139.34:3011.28:130.010:016.66:347:43Waxing Gibbous5Wed
6Thu2:259.25:1111.49:11-0.110:466.06:367:41Waxing Gibbous6Thu
7Fri3:259.45:4311.410:00-0.111:205.46:377:39Waxing Gibbous7Fri
8Sat4:169.66:0711.210:420.011:484.96:387:37Full Moon8Sat
9Sun4:599.76:2611.111:190.36:407:35Full Moon9Sun
10Mon5:409.96:4311.012:134.311:54 AM0.76:417:33Full Moon10Mon
11Tue6:199.97:0211.012:373.712:261.46:427:31Full Moon11Tue
12Wed7:009.97:2410.91:043.012:592.26:447:29Waning Gibbous12Wed
13Thu7:439.87:4810.81:342.31:333.16:457:27Waning Gibbous13Thu
14Fri8:299.88:1410.52:071.72:084.26:477:25Waning Gibbous14Fri
15Sat9:199.78:4210.22:441.32:465.36:487:23Waning Gibbous15Sat
16Sun10:179.59:119.83:250.93:316.46:497:20Third Quarter16Sun
17Mon11:279.59:479.44:120.84:317.36:517:18Third Quarter17Mon
18Tue12:569.65:080.76:017.96:527:16Third Quarter18Tue
19Wed2:2710.06:110.57:507.86:537:14Third Quarter19Wed
20Thu12:018.83:2610.57:170.18:597.36:557:12Waning Crescent20Thu
21Fri1:239.14:0611.08:21-0.39:426.46:567:10Waning Crescent21Fri
22Sat2:349.64:3911.49:18-0.710:195.36:587:08Waning Crescent22Sat
23Sun3:3710.25:0911.710:09-0.710:574.06:597:06New Moon23Sun
24Mon4:3510.85:3812.010:57-0.411:372.67:007:04New Moon24Mon
25Tue5:3111.26:0912.211:430.37:027:02New Moon25Tue
26Wed6:2911.36:4212.212:181.212:281.57:037:00Waxing Crescent26Wed
27Thu7:2811.37:1612.01:010.11:152.97:056:57Waxing Crescent27Thu
28Fri8:3011.27:5311.61:46-0.82:054.47:066:55Waxing Crescent28Fri
29Sat9:3711.08:3311.02:33-1.13:015.77:076:53Waxing Crescent29Sat
30Sun10:5210.89:1910.13:23-1.04:116.87:096:51First Quarter30Sun
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 3:47 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 63% 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 First Quarter (63% 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