Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide : 11:02 pm (1.8 ft)
Next high tide : in 2h 10m at 4:42 pm (5.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Mar 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:295.410:144.12:093.23:30-0.66:416:05Waxing Gibbous1Tue
2Wed8:365.410:534.43:202.94:22-0.86:406:06Waxing Gibbous2Wed
3Thu9:355.511:294.54:162.55:05-0.86:396:07Waxing Gibbous3Thu
4Fri10:275.45:052.15:44-0.76:376:08Full Moon4Fri
5Sat12:014.611:14 AM5.35:501.76:18-0.56:366:09Full Moon5Sat
6Sun12:314.711:59 AM5.06:311.36:50-0.16:346:10Full Moon6Sun
7Mon12:584.812:434.67:111.17:200.46:336:11Full Moon7Mon
8Tue1:224.81:274.37:510.97:490.96:316:12Waning Gibbous8Tue
9Wed1:464.82:143.98:300.78:181.56:306:13Waning Gibbous9Wed
10Thu2:114.83:063.59:120.78:482.16:286:14Waning Gibbous10Thu
11Fri2:384.74:123.29:590.79:212.66:276:15Waning Gibbous11Fri
12Sat3:114.65:463.010:550.710:053.16:256:16Third Quarter12Sat
13Sun4:554.58:503.11:030.77:247:17Third Quarter13Sun
14Mon5:544.410:013.312:263.42:160.57:227:18Third Quarter14Mon
15Tue7:064.410:383.62:153.53:210.37:217:19Third Quarter15Tue
16Wed8:164.511:063.83:273.24:130.07:197:20Waning Crescent16Wed
17Thu9:174.711:314.04:182.94:56-0.37:187:21Waning Crescent17Thu
18Fri10:114.911:564.25:002.55:34-0.57:167:22Waning Crescent18Fri
19Sat11:025.15:391.96:09-0.57:157:23Waning Crescent19Sat
20Sun12:224.411:52 AM5.16:191.46:43-0.47:137:24New Moon20Sun
21Mon12:484.712:425.07:010.87:18-0.17:117:24New Moon21Mon
22Tue1:175.11:354.87:450.27:530.57:107:25New Moon22Tue
23Wed1:475.42:314.58:31-0.38:301.17:087:26Waxing Crescent23Wed
24Thu2:205.63:334.19:21-0.69:101.77:077:27Waxing Crescent24Thu
25Fri2:585.64:443.810:16-0.79:562.37:057:28Waxing Crescent25Fri
26Sat3:425.66:083.511:19-0.610:542.97:047:29First Quarter26Sat
27Sun4:355.37:423.612:31-0.57:027:30First Quarter27Sun
28Mon5:435.09:003.812:173.21:51-0.47:017:31First Quarter28Mon
29Tue7:024.89:564.11:583.13:04-0.46:597:32First Quarter29Tue
30Wed8:214.710:394.33:202.84:04-0.46:587:33Waxing Gibbous30Wed
31Thu9:304.711:164.54:232.34:53-0.46:567:34Waxing Gibbous31Thu
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 7:52 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 24% 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 Waxing Crescent (24% 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