Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide (tomorrow) : 8:31 am (-0.4 ft)
Next high tide (tomorrow) : in 4h 52m at 1:13 am (5.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 6:12 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Apr 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:284.310:234.33:242.33:510.16:547:35Waning Crescent1Sat
2Sun9:314.311:024.44:212.04:400.16:537:36Waning Crescent2Sun
3Mon10:254.411:344.55:091.75:210.26:517:37Waning Crescent3Mon
4Tue11:124.45:491.35:560.36:507:38Waning Crescent4Tue
5Wed12:024.511:56 AM4.36:251.06:290.56:487:39New Moon5Wed
6Thu12:274.612:374.36:590.86:590.76:477:39New Moon6Thu
7Fri12:514.71:174.27:300.57:291.06:457:40New Moon7Fri
8Sat1:164.71:574.18:010.37:581.36:447:41New Moon8Sat
9Sun1:424.82:393.98:330.28:291.66:427:42Waxing Crescent9Sun
10Mon2:104.83:243.89:080.19:032.06:417:43Waxing Crescent10Mon
11Tue2:414.84:163.69:480.09:422.36:407:44Waxing Crescent11Tue
12Wed3:174.75:163.510:340.010:292.66:387:45Waxing Crescent12Wed
13Thu4:014.56:263.411:280.011:332.86:377:46First Quarter13Thu
14Fri4:554.47:383.612:300.06:357:47First Quarter14Fri
15Sat6:034.38:383.812:562.81:38-0.16:347:48First Quarter15Sat
16Sun7:184.39:274.12:162.62:42-0.26:337:49First Quarter16Sun
17Mon8:334.410:094.53:222.13:39-0.26:317:50Waxing Gibbous17Mon
18Tue9:414.510:474.84:171.44:30-0.26:307:51Waxing Gibbous18Tue
19Wed10:444.711:255.25:080.75:17-0.16:287:52Waxing Gibbous19Wed
20Thu11:434.85:560.16:020.26:277:53Full Moon20Thu
21Fri12:035.512:414.86:44-0.56:470.56:267:54Full Moon21Fri
22Sat12:415.71:384.77:32-0.97:331.06:247:54Full Moon22Sat
23Sun1:215.82:354.68:21-1.28:201.46:237:55Waning Gibbous23Sun
24Mon2:025.73:344.49:11-1.29:101.96:227:56Waning Gibbous24Mon
25Tue2:465.54:364.210:03-1.010:072.36:217:57Waning Gibbous25Tue
26Wed3:345.15:434.010:58-0.811:152.66:197:58Waning Gibbous26Wed
27Thu4:284.76:524.011:58-0.46:187:59Third Quarter27Thu
28Fri5:304.37:584.112:362.71:02-0.16:178:00Third Quarter28Fri
29Sat6:413.98:534.21:572.52:060.16:168:01Third Quarter29Sat
30Sun7:553.79:384.43:062.23:030.36:148:02Third Quarter30Sun
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 4:52 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 Marshall, Tomales Bay, CA?

Marshall, Tomales Bay, CA is currently in a spring phase. Tonight's moon is 99% 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 Full Moon (99% 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