Tides Today & Tomorrow in Port Madison, WA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently falling in Port Madison, WA.
Next low tide : in 2h 50m at 9:33 pm (7.5 ft)
Next high tide (tomorrow) : 1:16 am (8.7 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9445753
Common Questions About Tides

Port Madison, WA Tides - Jul 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:599.98:0611.712:358.012:06-2.55:159:11Full Moon1Sun
2Mon5:449.98:3611.91:117.612:46-2.55:169:11Waning Gibbous2Mon
3Tue6:349.79:0712.01:527.11:28-2.25:179:11Waning Gibbous3Tue
4Wed7:299.39:3812.12:386.42:10-1.45:179:11Waning Gibbous4Wed
5Thu8:328.710:1012.23:285.42:53-0.15:189:10Waning Gibbous5Thu
6Fri9:448.210:4412.24:214.13:391.55:199:10Third Quarter6Fri
7Sat11:097.811:2012.05:162.74:293.45:209:09Third Quarter7Sat
8Sun12:497.96:121.25:285.35:219:09Third Quarter8Sun
9Mon2:408.77:07-0.26:436.95:219:08Waning Crescent9Mon
10Tue12:4311.64:109.88:01-1.38:117.95:229:08Waning Crescent10Tue
11Wed1:3211.45:1410.88:53-2.39:348.25:239:07Waning Crescent11Wed
12Thu2:2511.16:0311.59:43-2.810:428.15:249:06New Moon12Thu
13Fri3:1910.96:4411.910:31-3.111:377.75:259:06New Moon13Fri
14Sat4:1310.77:2212.011:17-3.05:269:05New Moon14Sat
15Sun5:0610.47:5512.012:257.212:01-2.75:279:04New Moon15Sun
16Mon5:5810.08:2611.91:106.712:43-2.05:289:03Waxing Crescent16Mon
17Tue6:519.58:5411.81:556.01:24-1.15:299:02Waxing Crescent17Tue
18Wed7:468.99:2211.72:395.32:040.15:309:02Waxing Crescent18Wed
19Thu8:448.39:5011.53:254.52:431.55:319:01Waxing Crescent19Thu
20Fri9:497.810:1911.24:113.73:233.15:329:00First Quarter20Fri
21Sat11:067.510:5110.84:582.94:064.75:338:59First Quarter21Sat
22Sun12:487.65:462.14:586.35:358:57First Quarter22Sun
23Mon2:538.36:351.46:177.55:368:56First Quarter23Mon
24Tue12:0610.04:189.27:250.88:098.25:378:55Waxing Gibbous24Tue
25Wed12:539.75:0710.08:130.19:418.35:388:54Waxing Gibbous25Wed
26Thu1:449.55:4210.68:59-0.510:328.25:398:53Waxing Gibbous26Thu
27Fri2:349.66:1111.09:43-1.111:057.95:418:52Waxing Gibbous27Fri
28Sat3:229.86:3711.210:25-1.711:347.65:428:50Full Moon28Sat
29Sun4:0910.07:0111.411:06-2.15:438:49Full Moon29Sun
30Mon4:5610.27:2511.712:047.111:47 AM-2.35:448:48Full Moon30Mon
31Tue5:4510.27:5011.912:396.312:27-2.05:468:46Waning Gibbous31Tue
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 11:24 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 Port Madison, WA?

Port Madison, WA is currently in a transitional phase. Tonight's moon is 74% 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 shifting between spring and neap.

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 Gibbous (74% illuminated). This places Port Madison, WA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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