Tides Today & Tomorrow in Port Madison, WA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Port Madison, WA.
Next low tide (tomorrow) : 7:18 am (0.6 ft)
Next high tide : in 3h 10m at 11:59 pm (10.4 ft)
Sunset today : 8:57 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9445753
Common Questions About Tides

Port Madison, WA Tides - May 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:3211.67:0511.512:05-1.75:518:22Full Moon1Wed
2Thu6:0811.58:0011.712:295.012:48-2.45:508:24Waning Gibbous2Thu
3Fri6:4711.28:5711.81:205.81:33-2.75:488:25Waning Gibbous3Fri
4Sat7:3110.79:5811.72:166.42:23-2.55:468:26Waning Gibbous4Sat
5Sun8:2310.011:0411.53:216.93:16-1.95:458:28Third Quarter5Sun
6Mon9:259.24:416.94:14-1.05:438:29Third Quarter6Mon
7Tue12:1411.410:45 AM8.46:146.45:190.15:428:30Third Quarter7Tue
8Wed1:1911.412:197.97:365.46:271.05:408:32Third Quarter8Wed
9Thu2:1311.51:538.08:364.27:361.95:398:33Waning Crescent9Thu
10Fri2:5611.53:148.59:212.98:402.75:388:35Waning Crescent10Fri
11Sat3:3111.54:209.19:591.79:363.45:368:36Waning Crescent11Sat
12Sun4:0111.35:169.710:320.710:264.25:358:37Waning Crescent12Sun
13Mon4:2711.16:0410.211:02-0.111:124.95:348:38New Moon13Mon
14Tue4:5310.96:4710.711:31-0.711:555.65:328:40New Moon14Tue
15Wed5:2010.67:2711.012:01-1.15:318:41New Moon15Wed
16Thu5:4910.28:0511.212:376.212:32-1.35:308:42New Moon16Thu
17Fri6:219.88:4311.31:206.61:06-1.35:298:44Waxing Crescent17Fri
18Sat6:569.49:2311.32:066.91:43-1.15:278:45Waxing Crescent18Sat
19Sun7:348.910:0611.22:567.12:23-0.75:268:46Waxing Crescent19Sun
20Mon8:188.410:5311.13:537.13:07-0.25:258:47Waxing Crescent20Mon
21Tue9:117.811:4211.05:006.93:550.45:248:48First Quarter21Tue
22Wed10:207.46:116.44:481.25:238:50First Quarter22Wed
23Thu12:3011.011:41 AM7.17:095.65:461.95:228:51First Quarter23Thu
24Fri1:1511.01:047.37:524.66:462.65:218:52First Quarter24Fri
25Sat1:5411.12:207.98:283.37:463.35:208:53Waxing Gibbous25Sat
26Sun2:2911.33:278.79:041.98:444.05:208:54Waxing Gibbous26Sun
27Mon3:0211.54:269.79:400.39:394.75:198:55Waxing Gibbous27Mon
28Tue3:3611.65:2210.610:18-1.110:315.45:188:56Full Moon28Tue
29Wed4:1111.76:1511.310:58-2.411:246.05:178:57Full Moon29Wed
30Thu4:4911.77:0811.911:41-3.35:168:58Full Moon30Thu
31Fri5:3111.58:0212.212:176.512:26-3.75:168:59Waning Gibbous31Fri
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 3:38 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 transitional phase. Tonight's moon is 63% 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 First Quarter (63% 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