38.1617’ N, 122.8930’ W

Marshall, Tomales Bay, CA

54°
H -°
L 52°
WNW
8mph
Low tide
2:59 am

Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Sunday, September 20, 2026
The tide is currently falling in Marshall, Tomales Bay, CA.
Next low tide : in 5h 38m at 2:59 am (0.6 ft)
Next high tide : 10:06 am (3.9 ft)
Sunset today : 7:13 pm
Sunrise tomorrow : 6:57 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Feb 1876

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:505.04:163.310:441.310:121.77:235:41First Quarter1Tue
2Wed4:305.25:583.011:560.911:022.47:225:42First Quarter2Wed
3Thu5:185.47:553.11:110.47:215:43First Quarter3Thu
4Fri6:155.69:243.512:112.92:23-0.27:215:44Waxing Gibbous4Fri
5Sat7:195.810:213.91:333.33:25-0.77:205:45Waxing Gibbous5Sat
6Sun8:236.011:064.22:503.24:20-1.17:195:46Waxing Gibbous6Sun
7Mon9:246.211:464.43:553.05:09-1.47:185:47Waxing Gibbous7Mon
8Tue10:206.24:522.75:54-1.57:175:49Full Moon8Tue
9Wed12:234.611:13 AM6.15:452.36:36-1.37:165:50Full Moon9Wed
10Thu12:594.812:035.86:361.97:15-1.07:145:51Full Moon10Thu
11Fri1:334.912:535.47:261.67:51-0.57:135:52Waning Gibbous11Fri
12Sat2:075.01:434.88:171.38:270.17:125:53Waning Gibbous12Sat
13Sun2:395.12:364.29:091.29:030.87:115:54Waning Gibbous13Sun
14Mon3:125.13:373.610:051.19:401.67:105:55Waning Gibbous14Mon
15Tue3:475.04:563.111:061.010:222.37:095:56Third Quarter15Tue
16Wed4:254.96:463.012:140.97:085:57Third Quarter16Wed
17Thu5:124.88:403.21:250.77:065:58Third Quarter17Thu
18Fri6:094.79:453.512:433.32:300.57:056:00Third Quarter18Fri
19Sat7:114.810:263.72:073.43:250.27:046:01Waning Crescent19Sat
20Sun8:104.910:583.93:103.34:11-0.17:036:02Waning Crescent20Sun
21Mon9:015.111:254.03:583.14:49-0.37:016:03Waning Crescent21Mon
22Tue9:475.211:494.14:382.85:22-0.57:006:04Waning Crescent22Tue
23Wed10:295.35:132.55:53-0.56:596:05New Moon23Wed
24Thu12:134.211:10 AM5.25:482.26:21-0.56:576:06New Moon24Thu
25Fri12:364.411:51 AM5.16:231.86:49-0.36:566:07New Moon25Fri
26Sat1:004.612:334.97:011.47:190.06:556:08New Moon26Sat
27Sun1:264.81:204.67:421.17:490.56:536:09Waxing Crescent27Sun
28Mon1:535.02:124.18:270.78:221.16:526:10Waxing Crescent28Mon
29Tue2:235.23:143.79:180.58:581.86:506:11Waxing Crescent29Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415339)

Common Questions About Marshall, Tomales Bay, CA Tides

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Is this week a spring tide or neap tide in Marshall, Tomales Bay, CA?

Marshall, Tomales Bay, CA is currently in a neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Marshall, Tomales Bay, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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