47.3583’ N, 123.0980’ W

Union, WA

48°
H 53°
L 32°
SSE
3mph
Low tide
4:42 pm

Tides Today & Tomorrow in Union, WA

TIDE TIMES for Sunday, November 1, 2026
The tide is currently falling in Union, WA.
Next low tide : in 4h 55m at 4:42 pm (7.7 ft)
Next high tide : 7:49 pm (8.6 ft)
Sunset today : 4:55 pm
Sunrise tomorrow : 6:56 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9445478
Common Questions About Tides

Union, WA Tides - Oct 1853

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:009.84:0012.19:181.010:033.26:185:59New Moon1Sat
2Sun3:5210.54:2612.110:011.410:392.06:205:57New Moon2Sun
3Mon4:4311.04:5012.010:442.211:150.96:215:55New Moon3Mon
4Tue5:3511.55:1411.811:273.311:540.06:225:53Waxing Crescent4Tue
5Wed6:3111.75:3811.612:124.66:245:51Waxing Crescent5Wed
6Thu7:3111.76:0511.212:35-0.61:025.96:255:49Waxing Crescent6Thu
7Fri8:3811.66:3610.81:22-0.92:007.06:275:47Waxing Crescent7Fri
8Sat9:5111.57:1410.32:15-0.93:107.86:285:45First Quarter8Sat
9Sun11:0811.68:069.53:15-0.54:318.16:295:43First Quarter9Sun
10Mon12:1811.84:22-0.15:547.76:315:41First Quarter10Mon
11Tue1:1412.05:310.37:036.86:325:39Waxing Gibbous11Tue
12Wed2:0012.26:360.77:565.66:345:37Waxing Gibbous12Wed
13Thu1:189.02:3812.37:341.18:404.36:355:35Waxing Gibbous13Thu
14Fri2:259.63:1212.38:261.69:203.16:365:33Waxing Gibbous14Fri
15Sat3:2210.23:4312.29:142.39:572.06:385:31Full Moon15Sat
16Sun4:1310.74:1112.09:583.110:321.26:395:30Full Moon16Sun
17Mon5:0011.14:3611.610:394.011:060.76:415:28Full Moon17Mon
18Tue5:4611.44:5711.211:204.911:400.46:425:26Full Moon18Tue
19Wed6:3211.55:1410.812:025.86:445:24Waning Gibbous19Wed
20Thu7:1911.55:2810.312:130.312:476.66:455:22Waning Gibbous20Thu
21Fri8:1011.45:469.912:490.51:377.46:475:21Waning Gibbous21Fri
22Sat9:0611.26:109.51:270.82:367.96:485:19Waning Gibbous22Sat
23Sun10:0811.16:429.02:101.23:478.26:505:17Third Quarter23Sun
24Mon11:1211.27:268.43:011.65:078.06:515:15Third Quarter24Mon
25Tue12:0811.34:001.96:167.46:535:14Third Quarter25Tue
26Wed12:5411.65:052.17:066.46:545:12Third Quarter26Wed
27Thu1:3111.86:062.37:455.36:565:10Waning Crescent27Thu
28Fri12:588.02:0312.07:032.48:204.06:575:09Waning Crescent28Fri
29Sat2:058.92:3112.17:552.78:552.56:595:07Waning Crescent29Sat
30Sun3:0210.02:5812.28:453.29:301.07:005:05New Moon30Sun
31Mon3:5611.03:2412.29:343.910:06-0.47:025:04New Moon31Mon
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 neap phase. Tonight's moon is 50% 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 minimum.

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 Third Quarter (50% illuminated). This places Union, WA in a neap tide cycle, so tidal ranges are near their weekly minimum 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