Tides Today & Tomorrow in Union, WA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Union, WA.
Next low tide : in 1h 12m at 9:15 am (-0.9 ft)
Next high tide : 5:02 pm (10.8 ft)
Sunset today : 9:13 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9445478
Common Questions About Tides

Union, WA Tides - Jun 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:388.910:0112.33:047.32:20-0.35:199:01Waning Gibbous1Tue
2Wed7:258.110:3912.04:006.83:010.75:189:02Waning Gibbous2Wed
3Thu8:317.311:1611.74:566.13:431.95:189:02Third Quarter3Thu
4Fri10:236.711:4911.55:505.24:293.25:179:03Third Quarter4Fri
5Sat12:246.86:394.15:244.55:179:04Third Quarter5Sat
6Sun12:2011.31:527.57:232.96:275.65:169:05Third Quarter6Sun
7Mon12:4811.13:028.58:031.77:336.65:169:06Waning Crescent7Mon
8Tue1:1511.03:599.78:430.58:377.25:169:06Waning Crescent8Tue
9Wed1:4411.04:4910.79:21-0.79:387.75:159:07Waning Crescent9Wed
10Thu2:1611.05:3411.710:01-1.710:348.05:159:08New Moon10Thu
11Fri2:5310.96:1712.410:41-2.511:278.15:159:08New Moon11Fri
12Sat3:3310.97:0013.011:22-3.15:159:09New Moon12Sat
13Sun4:1710.77:4213.312:188.012:03-3.45:159:09New Moon13Sun
14Mon5:0510.48:2313.31:097.712:46-3.25:159:10Waxing Crescent14Mon
15Tue5:579.99:0413.32:027.21:30-2.55:159:10Waxing Crescent15Tue
16Wed6:589.19:4313.12:566.52:16-1.45:159:11Waxing Crescent16Wed
17Thu8:138.310:2112.83:535.43:040.25:159:11First Quarter17Thu
18Fri9:537.610:5812.54:504.13:552.05:159:11First Quarter18Fri
19Sat11:437.511:3512.35:462.64:533.95:159:12First Quarter19Sat
20Sun1:228.16:411.25:595.65:159:12First Quarter20Sun
21Mon12:1312.02:469.27:34-0.27:116.95:159:12Waxing Gibbous21Mon
22Tue12:5311.83:5510.38:23-1.38:227.85:159:12Waxing Gibbous22Tue
23Wed1:3511.64:5111.39:11-2.09:288.25:169:13Waxing Gibbous23Wed
24Thu2:1911.35:3712.09:56-2.510:298.25:169:13Full Moon24Thu
25Fri3:0311.06:1812.410:40-2.711:238.15:169:13Full Moon25Fri
26Sat3:4710.76:5712.711:21-2.75:179:13Full Moon26Sat
27Sun4:3010.37:3412.712:127.812:00-2.45:179:13Full Moon27Sun
28Mon5:129.88:1012.71:007.412:38-1.85:189:13Waning Gibbous28Mon
29Tue5:539.38:4412.51:467.01:14-1.05:189:13Waning Gibbous29Tue
30Wed6:378.69:1612.32:346.41:50-0.15:199:12Waning Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9445478)

Common Questions About Union, WA Tides

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What time does the tide turn (slack tide) in Union, WA today?

Slack tide in Union, WA is approximately 1:08 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 Union, WA?

Union, WA is currently in a spring phase. Tonight's moon is 91% 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 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 Waxing Gibbous (91% illuminated). This places Union, 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