Tides Today & Tomorrow in Union, WA

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently rising in Union, WA.
Next low tide : 11:14 am (-4.3 ft)
Next high tide : in 3h 12m at 3:28 am (11.3 ft)
Sunset today : 9:06 pm
Sunrise tomorrow : 5:30 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9445478
Common Questions About Tides

Union, WA Tides - Dec 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:3113.13:3212.010:517.210:57-3.17:384:24Full Moon1Wed
2Thu6:2113.64:0911.711:447.611:41-3.27:394:23Waning Gibbous2Thu
3Fri7:1313.84:5011.212:407.97:414:23Waning Gibbous3Fri
4Sat8:0513.85:3510.512:27-2.91:417.97:424:23Waning Gibbous4Sat
5Sun8:5813.66:309.61:17-2.12:467.57:434:22Waning Gibbous5Sun
6Mon9:5013.37:488.52:09-0.93:556.87:444:22Third Quarter6Mon
7Tue10:4013.19:517.73:060.55:035.67:454:22Third Quarter7Tue
8Wed11:2812.811:457.84:072.16:044.27:464:22Third Quarter8Wed
9Thu12:1112.65:123.66:562.87:474:22Waning Crescent9Thu
10Fri1:138.512:5112.56:174.87:411.47:484:21Waning Crescent10Fri
11Sat2:249.51:2712.37:185.98:220.37:494:21Waning Crescent11Sat
12Sun3:2310.52:0112.08:166.79:01-0.57:504:21Waning Crescent12Sun
13Mon4:1311.42:3211.89:117.29:38-1.17:514:22New Moon13Mon
14Tue4:5612.13:0111.410:027.610:14-1.47:524:22New Moon14Tue
15Wed5:3712.63:2711.110:507.810:50-1.47:524:22New Moon15Wed
16Thu6:1712.93:5310.711:368.011:25-1.37:534:22New Moon16Thu
17Fri6:5813.04:2110.312:248.07:544:22Waxing Crescent17Fri
18Sat7:3813.04:519.812:00-0.91:138.07:544:23Waxing Crescent18Sat
19Sun8:1812.85:269.312:35-0.42:067.87:554:23Waxing Crescent19Sun
20Mon8:5812.76:098.61:110.33:027.57:564:23Waxing Crescent20Mon
21Tue9:3712.57:047.91:491.13:586.87:564:24First Quarter21Tue
22Wed10:1312.38:257.22:292.14:535.97:574:24First Quarter22Wed
23Thu10:4712.110:507.03:163.25:424.87:574:25First Quarter23Thu
24Fri11:1912.04:134.36:253.47:584:26First Quarter24Fri
25Sat12:387.811:50 AM11.95:225.57:062.07:584:26Waxing Gibbous25Sat
26Sun1:529.012:2212.06:346.47:470.47:584:27Waxing Gibbous26Sun
27Mon2:5310.312:5812.07:417.28:28-1.07:584:28Waxing Gibbous27Mon
28Tue3:4611.61:3712.18:447.79:11-2.37:594:28Waxing Gibbous28Tue
29Wed4:3612.72:2012.19:437.99:55-3.27:594:29Full Moon29Wed
30Thu5:2313.53:0612.110:388.010:40-3.77:594:30Full Moon30Thu
31Fri6:1014.03:5511.811:317.911:26-3.87:594:31Full Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9445478)

Common Questions About Union, WA Tides

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

Slack tide in Union, WA is approximately 7:21 am — 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 0% 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 New Moon (0% 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