Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 5m at 8:18 pm (8.4 ft)
Next high tide (tomorrow) : 1:07 am (10.7 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Aug 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:4110.07:5911.712:546.412:27-1.55:478:46New Moon1Mon
2Tue6:279.78:2511.61:315.91:05-0.95:488:45Waxing Crescent2Tue
3Wed7:149.48:5111.52:085.41:43-0.15:508:44Waxing Crescent3Wed
4Thu8:039.09:1911.42:464.92:200.95:518:42Waxing Crescent4Thu
5Fri8:558.69:4811.23:264.22:572.15:528:40Waxing Crescent5Fri
6Sat9:548.110:2010.94:093.63:363.45:548:39First Quarter6Sat
7Sun11:047.910:5510.54:552.94:204.85:558:37First Quarter7Sun
8Mon12:317.95:442.35:156.15:568:36First Quarter8Mon
9Tue2:208.46:361.66:337.25:588:34First Quarter9Tue
10Wed12:199.93:499.27:290.98:097.75:598:32Waxing Gibbous10Wed
11Thu1:099.74:4210.08:210.19:277.86:008:31Waxing Gibbous11Thu
12Fri2:029.85:1910.69:10-0.710:187.66:028:29Waxing Gibbous12Fri
13Sat2:5310.05:5111.19:58-1.510:577.26:038:27Waxing Gibbous13Sat
14Sun3:4410.46:2111.510:43-2.011:356.76:048:25Full Moon14Sun
15Mon4:3410.76:5111.811:27-2.36:068:24Full Moon15Mon
16Tue5:2510.97:2212.012:145.912:11-2.26:078:22Full Moon16Tue
17Wed6:2010.97:5512.212:565.012:55-1.66:098:20Waning Gibbous17Wed
18Thu7:1710.68:2812.21:423.91:40-0.66:108:18Waning Gibbous18Thu
19Fri8:1910.29:0412.22:302.82:250.96:118:16Waning Gibbous19Fri
20Sat9:269.69:4211.93:221.83:142.76:138:15Third Quarter20Sat
21Sun10:449.210:2411.54:171.04:084.56:148:13Third Quarter21Sun
22Mon12:219.15:160.45:176.16:158:11Third Quarter22Mon
23Tue2:119.66:180.06:507.16:178:09Third Quarter23Tue
24Wed12:1010.43:3710.37:22-0.48:347.36:188:07Waning Crescent24Wed
25Thu1:1610.04:3611.08:24-0.69:527.06:198:05Waning Crescent25Thu
26Fri2:239.85:2011.49:19-0.810:446.46:218:03Waning Crescent26Fri
27Sat3:239.85:5611.510:09-0.811:245.96:228:01Waning Crescent27Sat
28Sun4:169.96:2411.510:52-0.811:575.46:247:59New Moon28Sun
29Mon5:029.96:4811.311:31-0.56:257:57New Moon29Mon
30Tue5:449.97:0811.212:274.912:080.06:267:55New Moon30Tue
31Wed6:269.97:2911.112:554.312:420.66:287:53New Moon31Wed
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 10:42 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 transitional phase. Tonight's moon is 21% 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 Waning Crescent (21% 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