38.1617’ N, 122.8930’ W

Marshall, Tomales Bay, CA

71°
H 69°
L 49°
WNW
10mph
Low tide
5:22 pm

Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently falling in Marshall, Tomales Bay, CA.
Next low tide : in 3h 35m at 5:22 pm (2.1 ft)
Next high tide : 10:39 pm (4.9 ft)
Sunset today : 7:07 pm
Sunrise tomorrow : 7:00 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Mar 1870

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:094.511:17 AM5.25:541.96:22-0.46:506:12New Moon1Tue
2Wed12:394.511:57 AM5.06:321.76:54-0.26:486:13New Moon2Wed
3Thu1:064.512:364.87:081.57:240.16:476:14New Moon3Thu
4Fri1:314.51:154.57:441.47:540.56:456:15Waxing Crescent4Fri
5Sat1:564.51:564.18:211.38:251.06:446:16Waxing Crescent5Sat
6Sun2:234.62:413.89:011.28:571.46:426:17Waxing Crescent6Sun
7Mon2:524.63:363.49:461.19:322.06:416:18Waxing Crescent7Mon
8Tue3:274.54:473.110:401.010:162.46:406:19First Quarter8Tue
9Wed4:094.56:223.011:430.911:192.86:386:20First Quarter9Wed
10Thu5:024.57:563.212:530.76:376:20First Quarter10Thu
11Fri6:054.59:003.512:423.01:590.46:356:21First Quarter11Fri
12Sat7:104.79:443.81:583.02:560.06:346:22Waxing Gibbous12Sat
13Sun8:115.010:204.12:582.73:44-0.46:326:23Waxing Gibbous13Sun
14Mon9:085.210:544.33:472.44:28-0.76:306:24Waxing Gibbous14Mon
15Tue10:015.411:284.64:331.95:10-0.86:296:25Waxing Gibbous15Tue
16Wed10:535.65:181.45:50-0.86:276:26Full Moon16Wed
17Thu12:024.911:46 AM5.56:040.86:31-0.56:266:27Full Moon17Thu
18Fri12:375.112:395.36:520.47:12-0.16:246:28Full Moon18Fri
19Sat1:135.31:354.97:420.07:540.46:236:29Waning Gibbous19Sat
20Sun1:515.52:354.58:36-0.28:381.16:216:30Waning Gibbous20Sun
21Mon2:335.53:434.19:33-0.39:281.76:206:31Waning Gibbous21Mon
22Tue3:205.45:023.710:38-0.210:302.36:186:32Third Quarter22Tue
23Wed4:145.26:323.711:49-0.211:502.76:176:33Third Quarter23Wed
24Thu5:194.97:543.81:04-0.16:156:34Third Quarter24Thu
25Fri6:304.78:564.11:182.72:13-0.26:146:35Third Quarter25Fri
26Sat7:404.79:454.32:332.53:12-0.26:126:36Waning Crescent26Sat
27Sun8:434.710:244.53:322.24:00-0.26:106:37Waning Crescent27Sun
28Mon9:374.710:584.54:211.84:41-0.16:096:37Waning Crescent28Mon
29Tue10:254.711:274.65:031.55:170.06:076:38Waning Crescent29Tue
30Wed11:094.611:524.65:401.25:490.26:066:39New Moon30Wed
31Thu11:504.46:150.96:200.56:046:40New Moon31Thu
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 spring phase. Tonight's moon is 91% 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 Gibbous (91% 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