Tides Today & Tomorrow in Marshall, Tomales Bay, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Marshall, Tomales Bay, CA.
Next low tide : in 5h 46m at 8:59 am (0.0 ft)
Next high tide : 3:11 pm (5.2 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9415339
Common Questions About Tides

Marshall, Tomales Bay, CA Tides - Aug 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:145.72:204.47:46-0.67:372.76:158:20Full Moon1Sat
2Sun12:545.52:484.48:19-0.58:172.66:158:19Full Moon2Sun
3Mon1:325.23:144.48:49-0.28:582.46:168:18Waning Gibbous3Mon
4Tue2:114.83:394.59:180.29:402.26:178:17Waning Gibbous4Tue
5Wed2:524.44:044.69:470.610:272.16:188:16Waning Gibbous5Wed
6Thu3:383.94:314.710:171.211:191.96:198:15Waning Gibbous6Thu
7Fri4:343.55:034.810:481.86:208:14Third Quarter7Fri
8Sat5:513.15:414.912:191.611:25 AM2.46:218:13Third Quarter8Sat
9Sun7:393.06:275.01:261.312:152.96:228:12Third Quarter9Sun
10Mon9:333.27:205.22:321.01:263.36:228:11Third Quarter10Mon
11Tue10:423.58:195.43:330.52:443.56:238:09Waning Crescent11Tue
12Wed11:273.89:165.74:260.03:503.46:248:08Waning Crescent12Wed
13Thu12:034.05:14-0.54:453.26:258:07Waning Crescent13Thu
14Fri12:374.25:58-0.95:342.96:268:06New Moon14Fri
15Sat1:104.46:39-1.16:242.56:278:04New Moon15Sat
16Sun1:434.77:20-1.17:142.06:288:03New Moon16Sun
17Mon12:486.12:164.97:59-0.98:061.66:298:02New Moon17Mon
18Tue1:415.82:515.28:38-0.59:001.26:298:00Waxing Crescent18Tue
19Wed2:385.33:275.59:170.29:590.86:307:59Waxing Crescent19Wed
20Thu3:394.64:065.79:580.911:020.66:317:58Waxing Crescent20Thu
21Fri4:514.04:495.710:431.76:327:56First Quarter21Fri
22Sat6:193.65:395.712:120.411:36 AM2.56:337:55First Quarter22Sat
23Sun8:023.56:385.61:270.312:473.16:347:54First Quarter23Sun
24Mon9:333.87:435.52:420.12:133.36:357:52First Quarter24Mon
25Tue10:364.18:485.53:49-0.13:303.36:357:51Waxing Gibbous25Tue
26Wed11:244.39:465.54:45-0.24:323.16:367:49Waxing Gibbous26Wed
27Thu12:024.45:31-0.35:222.86:377:48Waxing Gibbous27Thu
28Fri12:364.56:11-0.36:042.56:387:46Full Moon28Fri
29Sat1:054.56:45-0.26:432.36:397:45Full Moon29Sat
30Sun12:045.31:304.57:150.07:192.06:407:43Full Moon30Sun
31Mon12:435.11:524.67:430.27:541.86:417:42Full Moon31Mon
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 12:05 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 spring phase. Tonight's moon is 12% 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 (12% 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