47.3583’ N, 123.0980’ W

Union, WA

50°
H 53°
L 41°
SW
8mph
High tide
9:56 am

Tides Today & Tomorrow in Union, WA

TIDE TIMES for Sunday, November 15, 2026
The tide is currently rising in Union, WA.
Next low tide : 4:00 pm (8.0 ft)
Next high tide : in 1h 58m at 9:56 am (12.0 ft)
Sunset today : 4:36 pm
Sunrise tomorrow : 7:17 am
Moon phase : First Quarter (34% illuminated)
Tide Station Location : Station #9445478
Common Questions About Tides

Union, WA Tides - Oct 1835

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:4211.85:560.17:197.16:176:00Waxing Gibbous1Thu
2Fri12:048.92:2612.16:590.38:126.06:195:58Waxing Gibbous2Fri
3Sat1:279.23:0312.27:550.58:564.96:205:56Waxing Gibbous3Sat
4Sun2:329.73:3612.28:451.09:363.76:215:54Full Moon4Sun
5Mon3:2810.14:0612.19:301.610:122.76:235:52Full Moon5Mon
6Tue4:1810.54:3411.910:112.310:471.96:245:50Full Moon6Tue
7Wed5:0410.84:5811.610:513.211:211.36:265:48Full Moon7Wed
8Thu5:5011.05:1911.211:304.211:541.06:275:46Waning Gibbous8Thu
9Fri6:3611.05:3410.812:115.26:285:44Waning Gibbous9Fri
10Sat7:2511.05:4710.312:280.912:536.26:305:42Waning Gibbous10Sat
11Sun8:1810.96:049.91:030.91:427.16:315:40Waning Gibbous11Sun
12Mon9:1710.76:279.51:421.12:407.86:335:38Waning Gibbous12Mon
13Tue10:2510.76:589.12:271.43:538.26:345:36Third Quarter13Tue
14Wed11:3410.87:428.63:211.75:178.16:365:35Third Quarter14Wed
15Thu12:3311.14:231.86:287.66:375:33Third Quarter15Thu
16Fri1:1811.55:281.87:196.86:385:31Third Quarter16Fri
17Sat1:5511.86:281.77:585.76:405:29Waning Crescent17Sat
18Sun1:018.32:2712.07:231.78:344.46:415:27Waning Crescent18Sun
19Mon2:089.12:5612.28:131.99:102.96:435:25Waning Crescent19Mon
20Tue3:0710.13:2312.29:022.39:451.46:445:23New Moon20Tue
21Wed4:0111.13:4812.29:493.110:220.06:465:22New Moon21Wed
22Thu4:5511.94:1312.110:374.111:01-1.26:475:20New Moon22Thu
23Fri5:5012.54:4011.911:255.211:42-2.06:495:18Waxing Crescent23Fri
24Sat6:4712.85:0811.712:156.36:505:16Waxing Crescent24Sat
25Sun7:4812.85:3911.212:26-2.31:117.46:525:15Waxing Crescent25Sun
26Mon8:5212.66:1510.61:15-2.12:168.16:535:13Waxing Crescent26Mon
27Tue10:0012.46:599.82:09-1.53:318.36:555:11First Quarter27Tue
28Wed11:0812.38:048.83:10-0.64:537.96:565:10First Quarter28Wed
29Thu12:0812.34:160.36:117.06:585:08First Quarter29Thu
30Fri12:5812.35:231.27:105.76:595:06Waxing Gibbous30Fri
31Sat12:218.11:3912.36:272.07:554.47:015:05Waxing Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9445478)

Common Questions About Union, WA Tides

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Is this week a spring tide or neap tide in Union, WA?

Union, WA is currently in a transitional phase. Tonight's moon is 34% 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 Union, 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 Union, WA?

Tide predictions for Union, 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 Union, WA?

Tide data for Union, WA is sourced from NOAA Station #9445478. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9445478.

What is the moon phase in Union, WA tonight?

Tonight the moon over Union, WA is First Quarter (34% illuminated). This places Union, 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