Tides Today & Tomorrow in Tomales Bay entrance, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Tomales Bay entrance, CA.
Next low tide : 6:57 pm (2.5 ft)
Next high tide : in 1m at 1:41 pm (4.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415469
Common Questions About Tides

Tomales Bay entrance, CA Tides - Mar 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:124.97:493.412:170.16:436:04Third Quarter1Sun
2Mon5:255.08:423.71:28-0.26:426:05Third Quarter2Mon
3Tue6:395.29:214.01:073.02:27-0.66:406:06Waning Crescent3Tue
4Wed7:475.49:564.22:162.73:18-0.96:396:07Waning Crescent4Wed
5Thu8:485.510:304.53:132.14:03-1.06:376:08Waning Crescent5Thu
6Fri9:445.511:024.84:051.64:44-0.86:366:09New Moon6Fri
7Sat10:395.411:355.04:561.05:23-0.56:356:10New Moon7Sat
8Sun11:335.15:460.66:020.06:336:11New Moon8Sun
9Mon12:085.212:284.76:350.26:400.56:326:12Waxing Crescent9Mon
10Tue12:425.31:264.37:260.07:191.26:306:13Waxing Crescent10Tue
11Wed1:175.32:303.98:180.08:001.86:296:14Waxing Crescent11Wed
12Thu1:545.23:463.59:150.18:492.46:276:15Waxing Crescent12Thu
13Fri2:375.05:213.410:200.29:552.96:266:16First Quarter13Fri
14Sat3:294.76:573.511:340.311:263.16:246:17First Quarter14Sat
15Sun4:344.58:033.712:480.36:236:18First Quarter15Sun
16Mon5:464.48:483.912:513.01:500.36:216:19First Quarter16Mon
17Tue6:544.49:224.01:552.72:400.26:196:20Waxing Gibbous17Tue
18Wed7:524.49:504.12:452.43:200.16:186:21Waxing Gibbous18Wed
19Thu8:414.510:134.23:262.03:530.16:166:22Waxing Gibbous19Thu
20Fri9:254.510:344.34:031.74:210.26:156:23Waxing Gibbous20Fri
21Sat10:074.410:554.44:371.34:480.46:136:24Full Moon21Sat
22Sun10:484.311:174.65:101.05:130.66:126:25Full Moon22Sun
23Mon11:314.211:394.85:430.75:401.06:106:26Full Moon23Mon
24Tue12:154.06:170.46:071.46:096:27Full Moon24Tue
25Wed12:044.91:043.86:540.16:371.86:076:28Waning Gibbous25Wed
26Thu12:325.02:003.67:360.07:102.26:066:29Waning Gibbous26Thu
27Fri1:045.03:083.48:24-0.17:492.66:046:30Waning Gibbous27Fri
28Sat1:454.94:343.39:23-0.18:422.96:026:31Third Quarter28Sat
29Sun2:394.86:063.410:32-0.210:053.16:016:31Third Quarter29Sun
30Mon3:484.77:143.611:48-0.211:503.05:596:32Third Quarter30Mon
31Tue5:094.78:013.912:58-0.45:586:33Third Quarter31Tue
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 4:19 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 spring phase. Tonight's moon is 99% 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 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 Full Moon (99% illuminated). This places Tomales Bay entrance, 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