Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Marshall, Tomales Bay, CA.
Next low tide : 9:35 am (-0.9 ft)
Next high tide : in 2h 39m at 2:19 am (5.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Jan 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:514.71:515.08:312.38:56-0.57:285:02Waning Gibbous1Sat
2Sun3:314.82:474.59:312.19:390.07:285:03Waning Gibbous2Sun
3Mon4:135.03:544.010:391.810:270.67:285:04Third Quarter3Mon
4Tue4:595.25:173.511:541.411:221.37:285:04Third Quarter4Tue
5Wed5:495.56:523.31:090.87:285:05Third Quarter5Wed
6Thu6:425.78:243.412:241.82:170.27:285:06Waning Crescent6Thu
7Fri7:365.99:383.71:322.33:16-0.37:285:07Waning Crescent7Fri
8Sat8:306.110:374.12:392.54:09-0.77:285:08Waning Crescent8Sat
9Sun9:226.211:274.33:412.64:57-1.07:285:09Waning Crescent9Sun
10Mon10:126.24:372.55:41-1.27:275:10New Moon10Mon
11Tue12:114.510:59 AM6.15:292.56:22-1.17:275:11New Moon11Tue
12Wed12:524.611:44 AM5.86:182.47:02-1.07:275:12New Moon12Wed
13Thu1:314.712:285.57:062.37:39-0.77:275:13Waxing Crescent13Thu
14Fri2:074.71:115.17:542.28:15-0.37:265:14Waxing Crescent14Fri
15Sat2:414.71:554.68:432.18:510.17:265:15Waxing Crescent15Sat
16Sun3:154.72:424.19:342.09:270.77:265:16Waxing Crescent16Sun
17Mon3:504.73:373.610:321.910:061.27:255:17First Quarter17Mon
18Tue4:274.74:463.111:361.810:501.87:255:18First Quarter18Tue
19Wed5:074.86:172.912:451.57:245:19First Quarter19Wed
20Thu5:534.97:572.91:491.27:245:20First Quarter20Thu
21Fri6:435.09:143.212:492.72:450.77:235:21First Quarter21Fri
22Sat7:345.110:063.51:562.93:320.37:235:23Waxing Gibbous22Sat
23Sun8:235.310:463.82:542.94:13-0.17:225:24Waxing Gibbous23Sun
24Mon9:105.511:224.03:442.84:51-0.47:225:25Waxing Gibbous24Mon
25Tue9:555.711:554.24:282.75:26-0.77:215:26Full Moon25Tue
26Wed10:395.85:112.56:01-0.97:205:27Full Moon26Wed
27Thu12:284.411:23 AM5.85:532.26:37-0.97:205:28Full Moon27Thu
28Fri1:014.612:095.76:381.97:13-0.87:195:29Full Moon28Fri
29Sat1:354.912:575.47:251.67:51-0.57:185:30Waning Gibbous29Sat
30Sun2:105.11:495.08:161.48:30-0.17:175:32Waning Gibbous30Sun
31Mon2:485.32:474.49:121.19:120.57:165:33Waning Gibbous31Mon
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 5:57 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 8% 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 Waxing Crescent (8% 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