Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 3h 35m at 12:17 pm (-1.3 ft)
Next high tide : 7:44 pm (11.5 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:44 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Jul 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:448.211:1712.14:505.24:040.75:159:14Third Quarter1Fri
2Sat11:077.811:5412.15:463.94:562.35:159:14Third Quarter2Sat
3Sun12:437.86:422.35:554.15:169:14Third Quarter3Sun
4Mon12:3312.02:258.47:350.77:045.75:179:13Waning Crescent4Mon
5Tue1:1411.93:569.58:26-0.88:216.95:179:13Waning Crescent5Tue
6Wed1:5811.85:0610.69:15-2.09:377.65:189:12Waning Crescent6Wed
7Thu2:4411.66:0211.510:02-2.910:457.85:199:12New Moon7Thu
8Fri3:3211.46:4912.010:48-3.411:447.85:209:11New Moon8Fri
9Sat4:2211.17:3212.311:34-3.45:219:11New Moon9Sat
10Sun5:1310.88:1112.312:377.512:19-3.15:229:10New Moon10Sun
11Mon6:0510.38:4712.21:287.11:03-2.55:239:09Waxing Crescent11Mon
12Tue6:599.79:2212.12:186.61:47-1.75:249:09Waxing Crescent12Tue
13Wed7:559.19:5511.93:095.92:30-0.65:259:08Waxing Crescent13Wed
14Thu8:558.410:2711.64:005.23:120.85:269:07Waxing Crescent14Thu
15Fri10:027.811:0011.44:534.43:562.35:279:06First Quarter15Fri
16Sat11:227.411:3311.05:443.64:434.05:289:05First Quarter16Sat
17Sun1:047.46:342.75:395.55:299:04First Quarter17Sun
18Mon12:0910.72:588.17:221.86:546.85:309:04First Quarter18Mon
19Tue12:4810.34:219.18:060.98:277.65:319:03Waxing Gibbous19Tue
20Wed1:3010.05:1510.08:480.29:507.95:329:01Waxing Gibbous20Wed
21Thu2:139.95:5410.69:29-0.510:468.05:339:00Waxing Gibbous21Thu
22Fri2:569.86:2611.110:08-1.111:267.95:358:59Waxing Gibbous22Fri
23Sat3:399.96:5511.410:48-1.711:587.75:368:58Full Moon23Sat
24Sun4:2210.07:2111.611:27-2.15:378:57Full Moon24Sun
25Mon5:0610.27:4911.812:297.412:07-2.35:388:56Full Moon25Mon
26Tue5:5210.28:1711.91:046.912:48-2.25:398:54Waning Gibbous26Tue
27Wed6:4210.08:4612.11:446.21:29-1.85:418:53Waning Gibbous27Wed
28Thu7:379.79:1712.22:285.32:10-0.85:428:52Waning Gibbous28Thu
29Fri8:399.29:4912.23:164.32:530.55:438:51Waning Gibbous29Fri
30Sat9:488.710:2412.14:073.13:392.35:448:49Third Quarter30Sat
31Sun11:108.411:0211.95:021.94:304.15:468:48Third Quarter31Sun
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 4:00 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