Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide : 8:33 pm (2.4 ft)
Next high tide : in 54m at 2:57 pm (4.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Jan 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:274.91:285.87:592.38:40-1.27:285:02Waxing Crescent1Mon
2Tue3:145.02:245.39:022.29:30-0.77:285:02Waxing Crescent2Tue
3Wed4:035.13:274.710:122.010:22-0.17:285:03First Quarter3Wed
4Thu4:535.24:404.111:291.811:170.57:285:04First Quarter4Thu
5Fri5:465.36:043.612:471.47:285:05First Quarter5Fri
6Sat6:385.47:343.512:171.11:580.97:285:06First Quarter6Sat
7Sun7:295.58:553.61:201.63:000.47:285:07Waxing Gibbous7Sun
8Mon8:175.610:013.82:212.03:520.07:285:08Waxing Gibbous8Mon
9Tue9:015.710:554.13:172.34:37-0.37:285:09Waxing Gibbous9Tue
10Wed9:435.711:414.24:082.55:16-0.47:285:10Waxing Gibbous10Wed
11Thu10:215.64:542.65:52-0.57:275:11Full Moon11Thu
12Fri12:214.310:58 AM5.65:362.66:25-0.57:275:12Full Moon12Fri
13Sat12:574.311:33 AM5.46:162.66:57-0.57:275:13Full Moon13Sat
14Sun1:304.312:085.36:542.67:28-0.47:275:14Full Moon14Sun
15Mon2:014.312:445.17:322.67:59-0.37:265:15Waning Gibbous15Mon
16Tue2:324.41:214.88:112.58:310.07:265:16Waning Gibbous16Tue
17Wed3:034.42:004.48:542.49:040.37:265:17Waning Gibbous17Wed
18Thu3:374.52:464.09:432.39:410.77:255:18Waning Gibbous18Thu
19Fri4:144.53:413.610:412.210:221.17:255:19Third Quarter19Fri
20Sat4:554.74:553.211:471.911:111.67:245:20Third Quarter20Sat
21Sun5:404.86:283.112:561.57:245:21Third Quarter21Sun
22Mon6:295.18:003.212:102.01:590.97:235:22Third Quarter22Mon
23Tue7:205.39:153.51:152.32:540.37:235:23Waning Crescent23Tue
24Wed8:115.710:133.92:202.53:44-0.37:225:24Waning Crescent24Wed
25Thu9:036.011:024.23:192.54:32-0.97:215:26Waning Crescent25Thu
26Fri9:546.211:474.54:142.45:18-1.37:215:27New Moon26Fri
27Sat10:456.45:072.26:04-1.57:205:28New Moon27Sat
28Sun12:304.811:36 AM6.35:592.06:48-1.57:195:29New Moon28Sun
29Mon1:125.012:286.16:521.87:33-1.37:185:30New Moon29Mon
30Tue1:545.11:215.77:471.58:18-0.97:185:31Waxing Crescent30Tue
31Wed2:375.22:165.28:451.49:03-0.37:175:32Waxing Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415339)

Common Questions About Marshall, Tomales Bay, CA Tides

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

Slack tide in Marshall, Tomales Bay, CA is approximately 5:45 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 spring phase. Tonight's moon is 95% 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 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 Waning Gibbous (95% illuminated). This places Marshall, Tomales Bay, CA 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