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 4h 07m at 1:47 am (5.2 ft)
Next high tide : 7:01 am (9.5 ft)
Sunset today : 8:48 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Nov 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:4010.72:5712.39:054.39:43-1.46:554:52Full Moon1Mon
2Tue4:3811.53:3112.39:575.310:24-2.66:574:51Full Moon2Tue
3Wed5:3512.14:0712.210:496.211:06-3.36:584:49Full Moon3Wed
4Thu6:3012.54:4711.811:436.911:50-3.47:004:48Waning Gibbous4Thu
5Fri7:2512.65:3111.212:397.47:024:46Waning Gibbous5Fri
6Sat8:2012.46:2010.412:36-2.91:427.67:034:45Waning Gibbous6Sat
7Sun9:1812.27:169.51:25-2.12:577.57:054:43Waning Gibbous7Sun
8Mon10:1711.98:268.62:17-1.04:267.17:064:42Third Quarter8Mon
9Tue11:1511.69:517.83:130.35:516.27:084:40Third Quarter9Tue
10Wed12:0711.44:141.56:535.17:094:39Third Quarter10Wed
11Thu12:4911.35:192.77:394.07:114:38Third Quarter11Thu
12Fri1:067.81:2311.26:263.78:152.87:124:36Waning Crescent12Fri
13Sat2:258.51:5011.17:294.78:441.87:144:35Waning Crescent13Sat
14Sun3:279.32:1511.08:255.59:100.87:154:34Waning Crescent14Sun
15Mon4:1810.02:3810.99:156.29:34-0.17:174:33Waning Crescent15Mon
16Tue5:0110.73:0310.79:596.910:01-0.77:184:32New Moon16Tue
17Wed5:3811.23:3010.610:417.410:30-1.37:204:31New Moon17Wed
18Thu6:1311.63:5810.411:207.711:02-1.67:214:29New Moon18Thu
19Fri6:4711.84:2910.212:007.97:234:28New Moon19Fri
20Sat7:2311.95:0210.012:418.17:244:27Waxing Crescent20Sat
21Sun8:0312.05:419.712:18-1.71:278.17:264:26Waxing Crescent21Sun
22Mon8:4612.06:289.31:00-1.52:207.97:274:25Waxing Crescent22Mon
23Tue9:3011.97:288.81:46-1.03:227.57:294:25Waxing Crescent23Tue
24Wed10:1511.98:488.22:35-0.34:286.77:304:24First Quarter24Wed
25Thu10:5812.010:217.83:280.85:305.47:324:23First Quarter25Thu
26Fri11:3912.111:598.04:262.16:243.87:334:22First Quarter26Fri
27Sat12:1712.25:293.57:112.07:344:21Waxing Gibbous27Sat
28Sun1:338.712:5512.36:354.97:550.27:364:21Waxing Gibbous28Sun
29Mon2:539.91:3312.47:436.08:38-1.57:374:20Waxing Gibbous29Mon
30Tue3:5911.02:1112.48:486.99:20-2.77:384:20Full Moon30Tue
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 4:24 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 spring phase. Tonight's moon is 95% 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 (95% 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