Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide : 1:49 pm (-1.5 ft)
Next high tide : in 1h 30m at 7:13 am (10.0 ft)
Sunset today : 9:05 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Nov 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:478.41:5811.86:471.78:253.26:554:52Waxing Gibbous1Sun
2Mon2:109.02:2912.07:492.69:021.66:574:51Waxing Gibbous2Mon
3Tue3:199.82:5712.08:453.69:370.16:594:49Waxing Gibbous3Tue
4Wed4:2010.63:2511.99:364.610:11-1.07:004:48Full Moon4Wed
5Thu5:1411.23:5211.710:255.610:45-1.87:024:46Full Moon5Thu
6Fri6:0511.74:2211.311:146.511:19-2.17:034:45Full Moon6Fri
7Sat6:5212.04:5310.812:047.27:054:43Waning Gibbous7Sat
8Sun7:3812.15:2710.212:577.77:064:42Waning Gibbous8Sun
9Mon8:2412.06:059.512:33-1.71:557.97:084:40Waning Gibbous9Mon
10Tue9:1211.76:498.91:14-1.13:077.97:094:39Waning Gibbous10Tue
11Wed10:0311.57:458.21:59-0.34:407.67:114:38Third Quarter11Wed
12Thu10:5711.29:017.62:490.66:047.07:134:36Third Quarter12Thu
13Fri11:4611.110:317.23:441.56:566.27:144:35Third Quarter13Fri
14Sat12:2811.14:432.37:305.27:164:34Third Quarter14Sat
15Sun12:027.31:0211.25:443.17:574.17:174:33Waning Crescent15Sun
16Mon1:237.71:3111.36:433.98:202.97:194:31Waning Crescent16Mon
17Tue2:298.51:5611.47:374.78:441.57:204:30Waning Crescent17Tue
18Wed3:259.42:2111.48:285.59:110.27:224:29Waning Crescent18Wed
19Thu4:1410.32:4711.59:166.29:42-1.07:234:28New Moon19Thu
20Fri4:5911.13:1411.510:027.010:16-2.17:254:27New Moon20Fri
21Sat5:4411.83:4511.510:497.610:55-2.87:264:26New Moon21Sat
22Sun6:3112.34:2011.311:368.011:37-3.27:274:25New Moon22Sun
23Mon7:1912.55:0111.112:278.37:294:24Waxing Crescent23Mon
24Tue8:1112.55:4910.612:23-3.11:248.37:304:24Waxing Crescent24Tue
25Wed9:0412.46:4810.01:12-2.62:318.17:324:23Waxing Crescent25Wed
26Thu9:5812.38:019.12:05-1.83:497.47:334:22First Quarter26Thu
27Fri10:5112.29:328.33:01-0.65:106.37:344:21First Quarter27Fri
28Sat11:3912.211:167.84:010.86:184.87:364:21First Quarter28Sat
29Sun12:2112.25:062.47:123.17:374:20Waxing Gibbous29Sun
30Mon1:038.112:5912.26:143.97:571.47:384:19Waxing Gibbous30Mon
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 10:31 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 15% 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 Waxing Crescent (15% 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