Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide (tomorrow) : in 5h 04m at 12:45 am (6.5 ft)
Next high tide (tomorrow) : 5:33 am (9.8 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 - Aug 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:509.110:0312.13:461.83:333.05:468:47First Quarter1Sun
2Mon11:088.810:4911.84:431.14:284.65:488:45First Quarter2Mon
3Tue12:448.85:430.45:385.95:498:44First Quarter3Tue
4Wed2:299.36:47-0.17:036.75:508:42Waxing Gibbous4Wed
5Thu12:4111.03:4810.07:50-0.68:336.95:528:41Waxing Gibbous5Thu
6Fri1:4510.84:4410.78:49-1.09:466.65:538:39Waxing Gibbous6Fri
7Sat2:4710.75:2711.29:42-1.310:416.05:548:38Waxing Gibbous7Sat
8Sun3:4410.66:0311.510:29-1.411:275.55:568:36Full Moon8Sun
9Mon4:3710.56:3411.611:13-1.25:578:34Full Moon9Mon
10Tue5:2510.47:0111.612:074.911:53 AM-0.75:588:33Full Moon10Tue
11Wed6:1210.27:2811.612:454.312:32-0.16:008:31Full Moon11Wed
12Thu6:599.97:5511.51:223.71:100.86:018:29Waning Gibbous12Thu
13Fri7:479.68:2411.31:593.21:481.86:028:27Waning Gibbous13Fri
14Sat8:369.38:5511.12:372.72:262.96:048:26Waning Gibbous14Sat
15Sun9:309.09:2910.73:182.33:064.06:058:24Waning Gibbous15Sun
16Mon10:308.610:0810.34:032.13:515.26:078:22Third Quarter16Mon
17Tue11:438.410:529.94:521.94:466.26:088:20Third Quarter17Tue
18Wed1:158.55:471.76:006.96:098:19Third Quarter18Wed
19Thu2:469.06:451.47:337.26:118:17Third Quarter19Thu
20Fri12:439.33:469.57:431.08:517.16:128:15Waning Crescent20Fri
21Sat1:449.44:2410.18:360.49:416.76:138:13Waning Crescent21Sat
22Sun2:399.74:5410.59:25-0.110:186.16:158:11Waning Crescent22Sun
23Mon3:2910.05:2110.910:09-0.510:535.36:168:09New Moon23Mon
24Tue4:1710.45:4811.310:51-0.711:294.46:188:07New Moon24Tue
25Wed5:0510.76:1711.711:32-0.56:198:05New Moon25Wed
26Thu5:5510.96:4911.912:083.312:140.06:208:03New Moon26Thu
27Fri6:4810.97:2312.112:492.312:570.86:228:01Waxing Crescent27Fri
28Sat7:4310.88:0012.11:341.31:411.96:237:59Waxing Crescent28Sat
29Sun8:4310.58:4011.92:210.62:293.26:247:58Waxing Crescent29Sun
30Mon9:4910.19:2411.53:130.13:214.56:267:56First Quarter30Mon
31Tue11:069.710:1611.04:08-0.14:245.76:277:54First 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 3:09 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 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