Tides Today & Tomorrow in Harper, Yukon Harbor, WA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Harper, Yukon Harbor, WA.
Next low tide : 8:19 pm (7.9 ft)
Next high tide : in 2h 51m at 3:04 pm (9.8 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:14 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9445993
Common Questions About Tides

Harper, Yukon Harbor, WA Tides - Apr 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:4311.34:5710.111:042.410:552.65:486:39New Moon1Tue
2Wed5:0111.25:3810.311:291.711:293.55:466:40New Moon2Wed
3Thu5:2211.16:1910.411:571.05:446:42New Moon3Thu
4Fri5:4510.97:0210.512:044.412:270.55:426:43Waxing Crescent4Fri
5Sat6:1010.67:4810.512:415.41:010.15:406:44Waxing Crescent5Sat
6Sun7:3710.19:3810.41:216.22:380.06:387:46Waxing Crescent6Sun
7Mon8:059.710:3710.33:077.03:210.16:367:47Waxing Crescent7Mon
8Tue8:369.211:5010.24:057.64:110.46:347:49First Quarter8Tue
9Wed9:198.75:328.05:090.66:327:50First Quarter9Wed
10Thu1:1210.310:43 AM8.37:377.86:140.76:307:51First Quarter10Thu
11Fri2:1510.612:178.38:387.17:200.66:287:53First Quarter11Fri
12Sat2:5810.91:378.79:106.28:200.66:267:54Waxing Gibbous12Sat
13Sun3:3011.32:459.39:405.09:140.66:257:56Waxing Gibbous13Sun
14Mon3:5811.63:4610.010:133.510:041.06:237:57Waxing Gibbous14Mon
15Tue4:2611.94:4310.710:491.910:511.86:217:59Full Moon15Tue
16Wed4:5512.25:4011.311:270.311:372.86:198:00Full Moon16Wed
17Thu5:2612.36:3811.712:08-1.16:178:01Full Moon17Thu
18Fri5:5912.27:3711.912:254.012:50-2.16:158:03Waning Gibbous18Fri
19Sat6:3611.98:3811.91:145.21:35-2.56:138:04Waning Gibbous19Sat
20Sun7:1611.49:4411.72:096.22:23-2.46:118:06Waning Gibbous20Sun
21Mon8:0110.610:5711.53:137.13:15-1.86:108:07Third Quarter21Mon
22Tue8:569.64:367.54:13-0.96:088:08Third Quarter22Tue
23Wed12:1711.310:09 AM8.76:257.25:170.06:068:10Third Quarter23Wed
24Thu1:3011.311:41 AM8.07:576.36:280.96:048:11Third Quarter24Thu
25Fri2:2611.41:187.98:565.37:381.66:038:13Waning Crescent25Fri
26Sat3:0911.42:398.39:384.28:402.16:018:14Waning Crescent26Sat
27Sun3:4011.43:448.810:123.29:322.75:598:15Waning Crescent27Sun
28Mon4:0411.24:379.310:402.210:173.45:578:17Waning Crescent28Mon
29Tue4:2311.15:239.811:051.310:574.15:568:18New Moon29Tue
30Wed4:4210.96:0510.211:280.511:354.95:548:20New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9445993)

Common Questions About Harper, Yukon Harbor, WA Tides

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What time does the tide turn (slack tide) in Harper, Yukon Harbor, WA today?

Slack tide in Harper, Yukon Harbor, WA is approximately 5:41 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 Harper, Yukon Harbor, WA?

Harper, Yukon Harbor, WA is currently in a transitional phase. Tonight's moon is 66% 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 Harper, Yukon Harbor, 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 Harper, Yukon Harbor, WA?

Tide predictions for Harper, Yukon Harbor, 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 Harper, Yukon Harbor, WA?

Tide data for Harper, Yukon Harbor, WA is sourced from NOAA Station #9445993. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9445993.

What is the moon phase in Harper, Yukon Harbor, WA tonight?

Tonight the moon over Harper, Yukon Harbor, WA is First Quarter (66% illuminated). This places Harper, Yukon Harbor, 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