Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 2h 24m at 3:49 pm (0.3 ft)
Next high tide : 11:12 pm (12.2 ft)
Sunset today : 9:14 pm
Sunrise tomorrow : 5:09 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Aug 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:058.16:411.96:216.65:478:47Third Quarter1Sun
2Mon12:1710.13:429.07:321.28:017.45:488:45Waning Crescent2Mon
3Tue1:049.84:439.88:200.69:337.75:498:44Waning Crescent3Tue
4Wed1:539.65:2610.59:050.010:327.65:518:42Waning Crescent4Wed
5Thu2:429.55:5910.99:47-0.511:117.45:528:41Waning Crescent5Thu
6Fri3:289.66:2611.110:27-1.011:407.25:538:39New Moon6Fri
7Sat4:119.86:5111.311:06-1.45:558:37New Moon7Sat
8Sun4:5210.07:1511.512:076.911:44 AM-1.65:568:36New Moon8Sun
9Mon5:3510.17:4111.712:366.412:22-1.65:578:34New Moon9Mon
10Tue6:2110.18:0811.81:105.71:01-1.25:598:32Waxing Crescent10Tue
11Wed7:109.98:3711.91:494.91:40-0.56:008:31Waxing Crescent11Wed
12Thu8:059.69:0812.02:323.92:210.66:018:29Waxing Crescent12Thu
13Fri9:069.39:4211.93:182.93:042.16:038:27Waxing Crescent13Fri
14Sat10:178.910:1811.74:091.93:523.86:048:26First Quarter14Sat
15Sun11:438.711:0011.35:050.94:495.56:058:24First Quarter15Sun
16Mon1:309.06:040.16:066.96:078:22First Quarter16Mon
17Tue3:149.87:06-0.67:427.66:088:20Waxing Gibbous17Tue
18Wed12:5110.74:2410.78:08-1.29:127.66:108:18Waxing Gibbous18Wed
19Thu1:5610.55:1311.39:06-1.710:177.16:118:17Waxing Gibbous19Thu
20Fri3:0010.55:5311.710:00-1.911:076.56:128:15Full Moon20Fri
21Sat3:5910.66:2711.810:49-2.011:505.86:148:13Full Moon21Sat
22Sun4:5410.66:5811.811:34-1.76:158:11Full Moon22Sun
23Mon5:4510.57:2611.712:305.112:16-1.16:168:09Full Moon23Mon
24Tue6:3610.27:5311.61:094.412:57-0.26:188:07Waning Gibbous24Tue
25Wed7:279.98:2011.41:473.71:361.06:198:05Waning Gibbous25Wed
26Thu8:199.58:4811.12:273.02:162.36:218:03Waning Gibbous26Thu
27Fri9:169.19:1810.73:072.42:573.76:228:01Waning Gibbous27Fri
28Sat10:198.89:5110.23:502.03:425.16:237:59Third Quarter28Sat
29Sun11:358.710:299.74:361.74:386.46:257:57Third Quarter29Sun
30Mon1:188.95:281.56:047.36:267:55Third Quarter30Mon
31Tue2:599.46:251.38:157.66:277:53Third Quarter31Tue
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 7:30 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 transitional phase. Tonight's moon is 38% 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 shifting between spring and neap.

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 First Quarter (38% illuminated). This places Coupeville, Whidbey Island, WA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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