Tides Today & Tomorrow in Tomales Bay entrance, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Tomales Bay entrance, CA.
Next low tide (tomorrow) : 1:33 am (0.9 ft)
Next high tide : in 4h 05m at 5:55 pm (5.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9415469
Common Questions About Tides

Tomales Bay entrance, CA Tides - Jun 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:423.69:085.13:161.02:490.95:508:29Waxing Gibbous1Tue
2Wed9:503.69:425.24:050.53:341.35:498:29Waxing Gibbous2Wed
3Thu10:503.710:145.24:480.14:161.75:498:30Waxing Gibbous3Thu
4Fri11:433.810:435.25:27-0.24:562.05:498:31Full Moon4Fri
5Sat12:323.86:02-0.45:342.35:488:31Full Moon5Sat
6Sun1:163.96:35-0.56:122.65:488:32Full Moon6Sun
7Mon1:593.97:09-0.66:502.85:488:32Full Moon7Mon
8Tue12:145.02:403.97:42-0.67:292.95:488:33Waning Gibbous8Tue
9Wed12:484.93:203.98:18-0.58:103.05:488:34Waning Gibbous9Wed
10Thu1:254.74:023.98:56-0.48:583.05:488:34Waning Gibbous10Thu
11Fri2:064.54:443.99:37-0.39:563.05:478:35Waning Gibbous11Fri
12Sat2:524.35:284.010:21-0.111:042.85:478:35Waning Gibbous12Sat
13Sun3:474.06:104.211:080.15:478:35Third Quarter13Sun
14Mon4:543.76:504.412:172.511:59 AM0.45:478:36Third Quarter14Mon
15Tue6:143.57:284.71:232.012:510.75:478:36Third Quarter15Tue
16Wed7:383.48:065.02:191.41:441.05:478:37Waning Crescent16Wed
17Thu8:583.58:455.43:090.72:351.45:488:37Waning Crescent17Thu
18Fri10:083.79:265.73:570.03:261.75:488:37Waning Crescent18Fri
19Sat11:124.010:085.94:44-0.74:172.05:488:38Waning Crescent19Sat
20Sun12:104.25:32-1.25:082.35:488:38New Moon20Sun
21Mon1:054.36:20-1.56:012.45:488:38New Moon21Mon
22Tue1:574.47:09-1.66:562.55:488:38New Moon22Tue
23Wed12:326.02:484.57:59-1.67:552.55:498:38Waxing Crescent23Wed
24Thu1:255.73:394.68:49-1.38:592.55:498:39Waxing Crescent24Thu
25Fri2:205.34:304.69:41-0.910:112.45:498:39Waxing Crescent25Fri
26Sat3:204.85:214.710:33-0.511:272.15:508:39First Quarter26Sat
27Sun4:274.26:114.811:270.15:508:39First Quarter27Sun
28Mon5:443.76:585.012:441.812:220.65:508:39First Quarter28Mon
29Tue7:093.47:425.11:531.31:171.25:518:39First Quarter29Tue
30Wed8:343.48:235.22:530.92:101.65:518:39Waxing Gibbous30Wed
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 9:44 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 neap phase. Tonight's moon is 53% 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 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 First Quarter (53% illuminated). This places Tomales Bay entrance, 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