Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide (tomorrow) : 12:45 am (6.5 ft)
Next high tide : in 30m at 7:24 pm (11.4 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:42 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Sep 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:399.75:10-0.15:456.56:297:52First Quarter1Wed
2Thu2:1310.06:160.07:226.66:307:50First Quarter2Thu
3Fri12:319.93:2310.57:250.18:476.26:317:47Waxing Gibbous3Fri
4Sat1:479.84:1410.98:290.19:475.46:337:45Waxing Gibbous4Sat
5Sun2:569.84:5211.29:250.110:334.66:347:43Waxing Gibbous5Sun
6Mon3:5510.05:2311.210:140.311:113.96:357:41Full Moon6Mon
7Tue4:4510.25:4911.210:570.711:443.26:377:39Full Moon7Tue
8Wed5:3110.36:1211.211:361.26:387:37Full Moon8Wed
9Thu6:1410.36:3511.112:152.612:121.96:407:35Full Moon9Thu
10Fri6:5610.37:0110.912:452.112:492.66:417:33Waning Gibbous10Fri
11Sat7:3810.27:3010.71:171.61:253.56:427:31Waning Gibbous11Sat
12Sun8:2210.18:0110.51:511.32:034.36:447:29Waning Gibbous12Sun
13Mon9:089.98:3610.12:291.12:445.26:457:27Waning Gibbous13Mon
14Tue10:009.79:149.73:101.13:305.96:467:25Third Quarter14Tue
15Wed11:019.510:009.23:561.24:276.66:487:23Third Quarter15Wed
16Thu12:149.44:491.35:436.96:497:21Third Quarter16Thu
17Fri1:329.55:491.47:136.96:517:18Third Quarter17Fri
18Sat12:078.62:349.96:521.48:236.46:527:16Waning Crescent18Sat
19Sun1:188.83:1810.37:531.29:095.76:537:14Waning Crescent19Sun
20Mon2:239.23:5210.78:480.99:464.76:557:12Waning Crescent20Mon
21Tue3:209.84:2311.19:370.810:223.56:567:10Waning Crescent21Tue
22Wed4:1210.44:5311.510:230.910:592.26:587:08New Moon22Wed
23Thu5:0410.95:2511.811:081.311:390.96:597:06New Moon23Thu
24Fri5:5511.35:5912.011:532.07:007:04New Moon24Fri
25Sat6:4911.66:3612.112:20-0.212:392.97:027:02Waxing Crescent25Sat
26Sun7:4411.67:1611.91:05-0.91:273.87:037:00Waxing Crescent26Sun
27Mon8:4311.48:0111.51:52-1.32:194.87:056:58Waxing Crescent27Mon
28Tue9:4711.18:5010.82:42-1.33:185.77:066:55First Quarter28Tue
29Wed10:5910.89:4910.13:37-0.94:306.37:076:53First Quarter29Wed
30Thu12:1910.74:37-0.26:006.47:096:51First Quarter30Thu
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 10:04 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 100% 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 (100% 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