Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 1h 50m at 1:27 pm (-0.2 ft)
Next high tide : 8:28 pm (11.8 ft)
Sunset today : 8:47 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Sep 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:2210.66:43-0.58:287.76:297:51Waxing Gibbous1Tue
2Wed12:409.54:1711.07:52-0.49:406.96:317:49Waxing Gibbous2Wed
3Thu2:019.44:5811.38:55-0.410:286.16:327:47Waxing Gibbous3Thu
4Fri3:109.55:3011.49:49-0.411:055.36:337:45Waxing Gibbous4Fri
5Sat4:079.75:5511.310:34-0.111:374.56:357:43Full Moon5Sat
6Sun4:579.96:1411.211:130.36:367:41Full Moon6Sun
7Mon5:429.96:3111.112:053.711:49 AM1.06:377:39Full Moon7Mon
8Tue6:2510.06:4911.012:333.012:241.96:397:37Full Moon8Tue
9Wed7:099.97:1010.91:012.212:573.06:407:35Waning Gibbous9Wed
10Thu7:549.97:3410.71:311.51:324.16:427:32Waning Gibbous10Thu
11Fri8:419.88:0010.42:031.02:095.26:437:30Waning Gibbous11Fri
12Sat9:329.78:2810.02:400.72:486.26:447:28Waning Gibbous12Sat
13Sun10:319.58:589.53:210.63:367.16:467:26Third Quarter13Sun
14Mon11:479.49:349.04:080.74:437.86:477:24Third Quarter14Mon
15Tue1:279.55:050.96:408.16:487:22Third Quarter15Tue
16Wed2:509.96:090.98:447.86:507:20Third Quarter16Wed
17Thu12:038.43:3510.37:160.69:197.26:517:18Waning Crescent17Thu
18Fri1:258.74:0610.78:170.39:456.46:537:16Waning Crescent18Fri
19Sat2:339.24:3011.19:110.010:145.26:547:14Waning Crescent19Sat
20Sun3:329.84:5411.49:580.010:463.86:557:12New Moon20Sun
21Mon4:2710.45:1811.710:430.411:222.36:577:09New Moon21Mon
22Tue5:2210.95:4512.011:261.26:587:07New Moon22Tue
23Wed6:1811.26:1512.112:000.712:102.37:007:05New Moon23Wed
24Thu7:1611.46:4712.112:41-0.612:553.67:017:03Waxing Crescent24Thu
25Fri8:1611.47:2311.81:25-1.51:435.07:027:01Waxing Crescent25Fri
26Sat9:2111.28:0311.32:12-1.92:376.37:046:59Waxing Crescent26Sat
27Sun10:3410.98:5010.53:02-1.83:437.27:056:57First Quarter27Sun
28Mon12:0110.73:58-1.25:137.77:076:55First Quarter28Mon
29Tue1:3110.85:02-0.57:117.47:086:53First Quarter29Tue
30Wed2:4111.06:130.28:356.57:096:51First Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447929)

Common Questions About Coupeville, Whidbey Island, WA Tides

Show All
What time does the tide turn (slack tide) in Coupeville, Whidbey Island, WA today?

Slack tide in Coupeville, Whidbey Island, WA is approximately 4:57 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 90% 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 Gibbous (90% 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