Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Marshall, Tomales Bay, CA.
Next low tide : in 1h 03m at 10:42 am (1.4 ft)
Next high tide : 4:59 pm (5.3 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Aug 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:263.28:105.33:260.72:243.36:138:21Waxing Gibbous1Sun
2Mon11:173.69:045.54:180.23:323.46:148:20Waxing Gibbous2Mon
3Tue11:553.89:565.85:04-0.24:273.36:158:19Waxing Gibbous3Tue
4Wed12:294.05:46-0.65:163.16:168:18Waxing Gibbous4Wed
5Thu1:014.26:26-0.96:032.86:178:17Full Moon5Thu
6Fri1:334.47:04-1.16:502.46:188:16Full Moon6Fri
7Sat12:236.12:054.77:43-1.17:402.06:198:15Full Moon7Sat
8Sun1:145.92:385.08:20-0.88:321.66:198:14Waning Gibbous8Sun
9Mon2:075.53:125.38:59-0.39:271.36:208:13Waning Gibbous9Mon
10Tue3:044.93:495.59:380.310:280.96:218:12Waning Gibbous10Tue
11Wed4:084.34:305.710:201.111:350.76:228:10Third Quarter11Wed
12Thu5:253.85:165.811:071.86:238:09Third Quarter12Thu
13Fri6:593.56:095.812:490.512:052.56:248:08Third Quarter13Fri
14Sat8:403.57:105.82:060.21:193.06:258:07Third Quarter14Sat
15Sun10:013.88:155.73:170.02:413.26:268:06Waning Crescent15Sun
16Mon10:594.19:175.74:19-0.33:523.16:268:04Waning Crescent16Mon
17Tue11:444.310:135.75:11-0.44:512.96:278:03Waning Crescent17Tue
18Wed12:234.45:56-0.55:412.76:288:02Waning Crescent18Wed
19Thu12:574.56:34-0.46:252.46:298:00New Moon19Thu
20Fri1:274.67:07-0.37:062.26:307:59New Moon20Fri
21Sat12:295.31:544.67:38-0.17:452.06:317:58New Moon21Sat
22Sun1:095.12:184.78:060.38:231.86:327:56New Moon22Sun
23Mon1:484.72:414.78:340.79:011.66:337:55Waxing Crescent23Mon
24Tue2:304.43:054.89:011.19:411.46:337:53Waxing Crescent24Tue
25Wed3:144.03:314.99:291.710:261.36:347:52Waxing Crescent25Wed
26Thu4:073.64:014.99:582.211:171.36:357:51Waxing Crescent26Thu
27Fri5:153.34:394.910:322.76:367:49First Quarter27Fri
28Sat6:503.15:284.912:181.211:17 AM3.16:377:48First Quarter28Sat
29Sun8:453.26:284.91:291.012:333.56:387:46First Quarter29Sun
30Mon9:583.57:345.12:390.72:073.56:397:45First Quarter30Mon
31Tue10:393.78:375.33:390.33:193.46:407:43Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415339)

Common Questions About Marshall, Tomales Bay, CA Tides

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What time does the tide turn (slack tide) in Marshall, Tomales Bay, CA today?

Slack tide in Marshall, Tomales Bay, CA is approximately 1:50 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 Marshall, Tomales Bay, CA?

Marshall, Tomales Bay, CA is currently in a transitional phase. Tonight's moon is 64% 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 Marshall, Tomales Bay, CA 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 Marshall, Tomales Bay, CA?

Tide predictions for Marshall, Tomales Bay, CA 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 Marshall, Tomales Bay, CA?

Tide data for Marshall, Tomales Bay, CA is sourced from NOAA Station #9415339. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415339.

What is the moon phase in Marshall, Tomales Bay, CA tonight?

Tonight the moon over Marshall, Tomales Bay, CA is Third Quarter (64% illuminated). This places Marshall, Tomales Bay, CA 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