Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 2h 15m at 11:06 am (-1.2 ft)
Next high tide : 7:04 pm (11.3 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:41 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Apr 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:0610.92:599.89:113.89:051.65:486:41Waxing Gibbous1Fri
2Sat3:3611.33:4910.59:452.59:501.85:466:42Full Moon2Sat
3Sun4:0711.64:3911.010:221.310:342.35:446:43Full Moon3Sun
4Mon4:4011.95:3011.411:020.111:193.05:416:45Full Moon4Mon
5Tue5:1612.06:2311.611:44-0.95:396:46Waning Gibbous5Tue
6Wed5:5411.97:1811.612:053.812:29-1.45:376:48Waning Gibbous6Wed
7Thu6:3711.68:1611.412:554.61:16-1.65:356:49Waning Gibbous7Thu
8Fri7:2311.19:2011.21:495.42:08-1.45:336:51Waning Gibbous8Fri
9Sat8:1710.410:3110.92:536.03:04-0.85:316:52Third Quarter9Sat
10Sun9:229.611:4810.84:126.34:060.05:296:54Third Quarter10Sun
11Mon10:418.95:446.05:140.85:276:55Third Quarter11Mon
12Tue12:5910.912:108.77:075.26:241.45:256:56Waning Crescent12Tue
13Wed1:5411.11:348.88:084.27:301.95:246:58Waning Crescent13Wed
14Thu2:3811.22:449.38:543.18:292.45:226:59Waning Crescent14Thu
15Fri3:1211.23:419.79:322.29:192.95:207:01Waning Crescent15Fri
16Sat3:4011.24:3010.110:041.410:033.45:187:02New Moon16Sat
17Sun4:0611.05:1210.510:340.810:434.05:167:04New Moon17Sun
18Mon4:3210.95:5210.711:030.211:224.65:147:05New Moon18Mon
19Tue5:0010.76:2910.911:33-0.15:127:07New Moon19Tue
20Wed5:3010.47:0710.912:005.112:05-0.45:107:08Waxing Crescent20Wed
21Thu6:0310.17:4610.912:395.612:40-0.45:087:09Waxing Crescent21Thu
22Fri6:389.78:2810.91:216.01:18-0.35:067:11Waxing Crescent22Fri
23Sat7:189.39:1410.72:076.31:590.15:057:12Waxing Crescent23Sat
24Sun9:028.811:0610.64:006.53:450.56:038:14First Quarter24Sun
25Mon9:568.35:046.54:361.06:018:15First Quarter25Mon
26Tue12:0110.511:05 AM7.96:166.25:331.65:598:17First Quarter26Tue
27Wed12:5610.512:237.87:225.66:342.15:588:18First Quarter27Wed
28Thu1:4410.71:408.18:134.67:362.55:568:20Waxing Gibbous28Thu
29Fri2:2610.92:498.78:553.38:352.95:548:21Waxing Gibbous29Fri
30Sat3:0411.23:509.69:341.99:303.35:528:22Waxing Gibbous30Sat
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 3:05 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 99% 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 Full Moon (99% 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