47.3583’ N, 123.0980’ W

Union, WA

50°
H -°
L 45°
SW
8mph
High tide
1:40 am

Tides Today & Tomorrow in Union, WA

TIDE TIMES for Thursday, November 5, 2026
The tide is currently rising in Union, WA.
Next low tide : 7:06 am (3.8 ft)
Next high tide : in 39m at 1:40 am (8.9 ft)
Sunset today : 4:49 pm
Sunrise tomorrow : 7:02 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9445478
Common Questions About Tides

Union, WA Tides - Apr 1843

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:5911.16:2011.311:371.011:565.45:586:48New Moon1Sat
2Sun5:1510.97:0511.212:100.85:566:49Waxing Crescent2Sun
3Mon5:3110.67:5311.112:366.212:440.75:546:51Waxing Crescent3Mon
4Tue5:5210.38:4710.91:196.91:220.75:526:52Waxing Crescent4Tue
5Wed6:1910.09:4810.82:097.52:040.85:506:53Waxing Crescent5Wed
6Thu6:549.610:5310.83:118.02:541.05:486:55First Quarter6Thu
7Fri7:429.211:5311.04:248.03:541.25:466:56First Quarter7Fri
8Sat8:518.65:387.54:591.45:446:57First Quarter8Sat
9Sun12:4311.210:44 AM8.36:386.66:051.65:426:59Waxing Gibbous9Sun
10Mon1:2311.512:458.77:275.27:061.95:407:00Waxing Gibbous10Mon
11Tue1:5911.82:049.78:113.68:032.35:387:02Waxing Gibbous11Tue
12Wed2:3312.03:0910.88:531.98:583.05:367:03Waxing Gibbous12Wed
13Thu3:0512.14:0811.79:350.29:503.85:357:04Full Moon13Thu
14Fri3:3712.25:0412.510:17-1.110:404.75:337:06Full Moon14Fri
15Sat4:0912.15:5912.911:00-2.111:305.65:317:07Full Moon15Sat
16Sun4:4211.96:5512.911:45-2.55:297:09Waning Gibbous16Sun
17Mon5:1711.57:5212.712:226.412:31-2.35:277:10Waning Gibbous17Mon
18Tue5:5311.08:5112.31:177.11:21-1.75:257:11Waning Gibbous18Tue
19Wed6:3310.29:5112.02:177.42:13-0.85:237:13Third Quarter19Wed
20Thu7:229.310:5211.73:257.53:090.35:217:14Third Quarter20Thu
21Fri8:398.411:4811.54:387.14:091.35:207:16Third Quarter21Fri
22Sat10:437.85:506.35:112.35:187:17Third Quarter22Sat
23Sun12:3511.412:208.06:485.36:123.15:167:18Waning Crescent23Sun
24Mon1:1511.41:348.57:344.17:073.75:147:20Waning Crescent24Mon
25Tue1:5011.32:339.28:133.07:594.45:137:21Waning Crescent25Tue
26Wed2:2111.33:2510.08:491.98:474.95:117:22Waning Crescent26Wed
27Thu2:4911.24:1110.79:241.09:335.45:097:24New Moon27Thu
28Fri3:1411.14:5411.39:580.310:175.95:077:25New Moon28Fri
29Sat3:3610.95:3511.710:31-0.311:006.45:067:27New Moon29Sat
30Sun3:5610.76:1812.011:05-0.611:436.85:047:28New Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9445478)

Common Questions About Union, WA Tides

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

Union, WA is currently in a spring phase. Tonight's moon is 12% 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 Waning Crescent (12% 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