Tides Today & Tomorrow in Port Madison, WA

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Port Madison, WA.
Next low tide (tomorrow) : 3:23 am (6.2 ft)
Next high tide : in 5h 59m at 9:44 pm (12.4 ft)
Sunset today : 9:11 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9445753
Common Questions About Tides

Port Madison, WA Tides - Jan 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:5311.92:2712.09:328.49:39-3.57:584:29New Moon1Sat
2Sun5:4112.63:1811.810:318.310:26-3.87:584:30New Moon2Sun
3Mon6:2613.04:1111.511:268.111:13-3.67:584:31New Moon3Mon
4Tue7:0913.15:0711.012:207.67:584:32Waxing Crescent4Tue
5Wed7:5013.16:0610.412:01-3.01:167.07:584:33Waxing Crescent5Wed
6Thu8:3013.07:089.612:48-1.92:146.27:574:34Waxing Crescent6Thu
7Fri9:0912.88:178.71:35-0.63:155.37:574:35Waxing Crescent7Fri
8Sat9:4712.59:368.02:221.14:164.37:574:36First Quarter8Sat
9Sun10:2412.111:157.73:122.95:153.37:564:37First Quarter9Sun
10Mon11:0211.74:084.86:092.27:564:39First Quarter10Mon
11Tue1:128.211:41 AM11.35:196.46:571.37:554:40Waxing Gibbous11Tue
12Wed2:499.212:2210.86:497.67:390.57:554:41Waxing Gibbous12Wed
13Thu3:5410.31:0310.58:208.18:17-0.17:544:43Waxing Gibbous13Thu
14Fri4:4111.11:4510.29:298.38:54-0.67:544:44Waxing Gibbous14Fri
15Sat5:1711.62:2610.110:188.29:29-1.07:534:45Waxing Gibbous15Sat
16Sun5:4711.93:0710.110:548.110:04-1.27:524:47Full Moon16Sun
17Mon6:1312.03:4710.111:237.910:40-1.47:524:48Full Moon17Mon
18Tue6:3712.04:2610.011:517.611:16-1.47:514:49Full Moon18Tue
19Wed7:0112.15:0710.012:207.37:504:51Full Moon19Wed
20Thu7:2612.25:519.812:546.77:494:52Waning Gibbous20Thu
21Fri7:5312.36:399.412:29-0.81:336.07:484:54Waning Gibbous21Fri
22Sat8:2212.47:349.01:070.02:175.17:474:55Waning Gibbous22Sat
23Sun8:5212.38:398.61:451.23:044.17:464:57Third Quarter23Sun
24Mon9:2412.29:578.32:262.83:552.97:454:58Third Quarter24Mon
25Tue9:5912.011:348.33:124.54:501.77:445:00Third Quarter25Tue
26Wed10:3811.84:106.35:470.57:435:01Third Quarter26Wed
27Thu1:329.111:25 AM11.55:317.76:45-0.77:425:03Waning Crescent27Thu
28Fri3:0710.212:2011.47:088.57:41-1.77:415:04Waning Crescent28Fri
29Sat4:0611.31:1911.38:338.68:35-2.47:405:06Waning Crescent29Sat
30Sun4:5112.02:1911.39:388.39:26-2.87:385:08New Moon30Sun
31Mon5:3012.53:1811.310:307.710:14-2.97:375:09New Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9445753)

Common Questions About Port Madison, WA Tides

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

Slack tide in Port Madison, WA is approximately 12:33 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 Port Madison, WA?

Port Madison, WA is currently in a spring phase. Tonight's moon is 19% 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 Port Madison, 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 Port Madison, WA?

Tide predictions for Port Madison, 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 Port Madison, WA?

Tide data for Port Madison, WA is sourced from NOAA Station #9445753. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9445753.

What is the moon phase in Port Madison, WA tonight?

Tonight the moon over Port Madison, WA is Waxing Crescent (19% illuminated). This places Port Madison, 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