Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 1h 36m at 3:09 am (6.1 ft)
Next high tide : 7:54 am (8.7 ft)
Sunset today : 9:13 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Apr 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:2210.03:388.13:59-0.85:476:41Third Quarter1Fri
2Sat12:1910.49:34 AM9.45:258.35:08-0.55:456:42Third Quarter2Sat
3Sun1:3910.812:128.98:147.67:20-0.26:437:44Waning Crescent3Sun
4Mon3:3011.21:479.09:166.58:270.06:417:45Waning Crescent4Mon
5Tue4:0711.53:069.49:595.19:260.36:397:47Waning Crescent5Tue
6Wed4:3711.74:139.910:373.610:170.86:377:48Waning Crescent6Wed
7Thu5:0311.95:1310.311:132.211:041.76:357:50New Moon7Thu
8Fri5:2911.96:0810.711:490.911:492.86:337:51New Moon8Fri
9Sat5:5511.97:0210.912:24-0.16:317:52New Moon9Sat
10Sun6:2211.67:5411.112:324.012:59-0.96:297:54Waxing Crescent10Sun
11Mon6:5111.28:4611.11:175.11:35-1.26:277:55Waxing Crescent11Mon
12Tue7:2210.69:3911.02:056.22:13-1.16:257:57Waxing Crescent12Tue
13Wed7:559.910:3610.82:587.02:54-0.86:237:58Waxing Crescent13Wed
14Thu8:339.211:4410.54:047.63:41-0.16:218:00First Quarter14Thu
15Fri9:218.55:447.74:340.66:198:01First Quarter15Fri
16Sat1:0010.410:32 AM7.97:487.35:351.26:178:03First Quarter16Sat
17Sun2:0810.412:037.58:506.76:421.76:158:04First Quarter17Sun
18Mon2:5410.51:307.69:265.97:461.96:148:05Waxing Gibbous18Mon
19Tue3:2610.62:418.09:515.08:412.26:128:07Waxing Gibbous19Tue
20Wed3:5010.73:398.510:124.19:282.56:108:08Waxing Gibbous20Wed
21Thu4:1110.94:299.110:323.010:103.06:088:10Waxing Gibbous21Thu
22Fri4:3111.05:169.710:551.710:503.76:068:11Full Moon22Fri
23Sat4:5211.16:0110.311:230.511:304.56:048:13Full Moon23Sat
24Sun5:1511.26:4810.911:54-0.76:028:14Full Moon24Sun
25Mon5:4111.27:3611.312:115.412:30-1.76:018:16Full Moon25Mon
26Tue6:1111.18:2811.512:556.21:09-2.35:598:17Waning Gibbous26Tue
27Wed6:4410.99:2411.61:427.01:53-2.65:578:18Waning Gibbous27Wed
28Thu7:2310.510:2611.42:367.62:42-2.45:558:20Waning Gibbous28Thu
29Fri8:109.911:3611.33:417.93:36-1.85:548:21Third Quarter29Fri
30Sat9:159.25:077.94:37-1.15:528:23Third Quarter30Sat
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 5:31 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 80% 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 Waning Gibbous (80% 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