Tides Today & Tomorrow in Tomales Bay entrance, CA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Tomales Bay entrance, CA.
Next low tide : 10:06 pm (1.7 ft)
Next high tide : in 2h 54m at 3:52 pm (4.9 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9415469
Common Questions About Tides

Tomales Bay entrance, CA Tides - Mar 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:495.012:395.06:560.97:130.06:436:04Waning Gibbous1Tue
2Wed1:265.01:344.57:480.77:530.76:426:05Waning Gibbous2Wed
3Thu2:035.02:354.08:440.78:361.36:416:06Waning Gibbous3Thu
4Fri2:424.93:483.69:440.69:262.06:396:07Third Quarter4Fri
5Sat3:254.85:213.410:510.610:292.56:386:08Third Quarter5Sat
6Sun4:164.67:013.412:020.66:366:09Third Quarter6Sun
7Mon5:144.58:143.71:100.56:356:10Third Quarter7Mon
8Tue6:184.59:043.91:092.92:080.36:336:11Waning Crescent8Tue
9Wed7:174.59:414.02:112.72:560.16:326:12Waning Crescent9Wed
10Thu8:094.610:124.13:002.53:360.06:306:13Waning Crescent10Thu
11Fri8:554.710:384.13:402.34:11-0.16:296:14Waning Crescent11Fri
12Sat9:374.811:034.24:162.04:42-0.16:276:15New Moon12Sat
13Sun10:174.811:274.34:491.75:120.06:266:16New Moon13Sun
14Mon10:574.711:514.45:221.55:400.16:246:17New Moon14Mon
15Tue11:374.65:551.26:090.36:236:18New Moon15Tue
16Wed12:164.612:204.46:310.96:390.76:216:19Waxing Crescent16Wed
17Thu12:434.71:074.17:100.77:111.16:206:20Waxing Crescent17Thu
18Fri1:134.82:023.87:540.57:471.66:186:21Waxing Crescent18Fri
19Sat1:474.93:103.58:460.38:302.16:176:22Waxing Crescent19Sat
20Sun2:284.94:363.49:470.29:262.56:156:23First Quarter20Sun
21Mon3:204.86:123.410:590.110:452.86:146:24First Quarter21Mon
22Tue4:264.87:303.712:15-0.16:126:25First Quarter22Tue
23Wed5:424.88:254.012:172.81:25-0.46:106:26Waxing Gibbous23Wed
24Thu6:554.99:084.21:342.62:24-0.66:096:27Waxing Gibbous24Thu
25Fri8:025.19:464.52:352.13:15-0.76:076:28Waxing Gibbous25Fri
26Sat9:025.210:224.73:291.64:00-0.66:066:29Waxing Gibbous26Sat
27Sun9:585.110:574.94:181.04:42-0.46:046:29Full Moon27Sun
28Mon10:525.011:315.05:060.65:22-0.16:036:30Full Moon28Mon
29Tue11:444.85:520.26:010.46:016:31Full Moon29Tue
30Wed12:045.112:374.56:380.06:400.96:006:32Waning Gibbous30Wed
31Thu12:375.11:324.17:24-0.17:191.55:586:33Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415469)

Common Questions About Tomales Bay entrance, CA Tides

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What time does the tide turn (slack tide) in Tomales Bay entrance, CA today?

Slack tide in Tomales Bay entrance, CA is approximately 6:59 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 Tomales Bay entrance, CA?

Tomales Bay entrance, CA is currently in a transitional phase. Tonight's moon is 24% 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 shifting between spring and neap.

What datum are Tomales Bay entrance, 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 Tomales Bay entrance, CA?

Tide predictions for Tomales Bay entrance, 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 Tomales Bay entrance, CA?

Tide data for Tomales Bay entrance, CA is sourced from NOAA Station #9415469. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415469.

What is the moon phase in Tomales Bay entrance, CA tonight?

Tonight the moon over Tomales Bay entrance, CA is Waxing Crescent (24% illuminated). This places Tomales Bay entrance, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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