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 4h 00m 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 - May 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:0210.86:4410.611:53-0.25:528:21New Moon1Thu
2Fri5:2510.67:2210.912:125.712:21-0.75:518:22New Moon2Fri
3Sat5:5010.38:0111.212:506.312:52-1.05:498:24Waxing Crescent3Sat
4Sun6:1710.08:4211.31:306.91:26-1.25:488:25Waxing Crescent4Sun
5Mon6:469.69:2811.22:157.32:05-1.15:468:26Waxing Crescent5Mon
6Tue7:179.210:1911.13:067.62:48-0.85:458:28Waxing Crescent6Tue
7Wed7:558.811:1711.04:087.73:37-0.55:438:29First Quarter7Wed
8Thu8:548.35:277.64:330.05:428:30First Quarter8Thu
9Fri12:1511.110:23 AM7.96:487.05:330.55:408:32First Quarter9Fri
10Sat1:0711.211:59 AM7.87:436.06:361.15:398:33First Quarter10Sat
11Sun1:4911.41:258.28:254.67:391.75:378:34Waxing Gibbous11Sun
12Mon2:2411.72:418.99:033.08:372.55:368:36Waxing Gibbous12Mon
13Tue2:5611.93:499.89:411.29:333.45:358:37Waxing Gibbous13Tue
14Wed3:2812.24:5110.710:20-0.610:264.45:338:38Full Moon14Wed
15Thu4:0112.35:5011.511:00-2.111:195.45:328:40Full Moon15Thu
16Fri4:3712.26:4812.111:42-3.15:318:41Full Moon16Fri
17Sat5:1512.07:4512.412:126.212:26-3.65:308:42Waning Gibbous17Sat
18Sun5:5711.58:4212.51:086.91:11-3.65:298:43Waning Gibbous18Sun
19Mon6:4410.79:4012.32:107.31:59-3.05:288:45Waning Gibbous19Mon
20Tue7:379.910:3912.13:207.42:50-2.15:268:46Waning Gibbous20Tue
21Wed8:408.911:3911.94:437.13:45-0.95:258:47Third Quarter21Wed
22Thu9:578.06:126.44:440.45:248:48Third Quarter22Thu
23Fri12:3411.711:29 AM7.47:245.35:471.65:238:49Third Quarter23Fri
24Sat1:2211.51:077.48:184.26:532.75:228:50Third Quarter24Sat
25Sun2:0011.42:357.89:003.07:573.85:218:52Waning Crescent25Sun
26Mon2:3111.23:468.59:331.98:564.75:218:53Waning Crescent26Mon
27Tue2:5711.04:439.310:010.99:495.55:208:54Waning Crescent27Tue
28Wed3:2010.95:3110.010:270.010:376.25:198:55Waning Crescent28Wed
29Thu3:4410.76:1310.610:52-0.711:206.85:188:56New Moon29Thu
30Fri4:0910.56:5011.111:20-1.35:178:57New Moon30Fri
31Sat4:3610.37:2411.412:027.211:50 AM-1.75:178:58New Moon31Sat
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