Tides Today & Tomorrow in Tomales Bay entrance, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Tomales Bay entrance, CA.
Next low tide : 11:11 pm (1.2 ft)
Next high tide : in 3h 47m at 4:09 pm (5.1 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415469
Common Questions About Tides

Tomales Bay entrance, CA Tides - Aug 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:123.46:495.31:091.012:342.16:148:21First Quarter1Mon
2Tue8:373.67:455.62:140.51:412.36:158:20Waxing Gibbous2Tue
3Wed9:443.98:415.83:12-0.12:472.36:168:19Waxing Gibbous3Wed
4Thu10:394.29:366.04:05-0.53:472.36:178:18Waxing Gibbous4Thu
5Fri11:274.410:306.14:55-0.84:432.16:188:17Full Moon5Fri
6Sat12:124.75:42-1.05:371.96:188:16Full Moon6Sat
7Sun12:554.86:28-0.96:311.76:198:15Full Moon7Sun
8Mon12:145.91:375.07:12-0.77:241.56:208:14Waning Gibbous8Mon
9Tue1:065.62:185.17:56-0.48:191.46:218:12Waning Gibbous9Tue
10Wed1:595.13:005.18:400.19:171.46:228:11Waning Gibbous10Wed
11Thu2:554.63:425.19:250.610:191.36:238:10Waning Gibbous11Thu
12Fri3:574.14:285.010:131.211:261.36:248:09Third Quarter12Fri
13Sat5:103.85:165.011:081.76:258:08Third Quarter13Sat
14Sun6:363.66:084.912:361.212:112.26:258:06Third Quarter14Sun
15Mon8:033.67:024.91:431.01:182.56:268:05Third Quarter15Mon
16Tue9:123.87:545.02:430.82:222.66:278:04Waning Crescent16Tue
17Wed10:053.98:435.03:330.63:162.66:288:03Waning Crescent17Wed
18Thu10:464.19:285.14:160.44:032.56:298:01Waning Crescent18Thu
19Fri11:214.210:105.24:530.24:442.46:308:00Waning Crescent19Fri
20Sat11:514.310:495.25:270.15:212.26:317:59New Moon20Sat
21Sun12:204.45:580.15:572.16:327:57New Moon21Sun
22Mon12:484.56:280.16:321.96:337:56New Moon22Mon
23Tue12:075.11:174.66:580.27:081.76:337:54New Moon23Tue
24Wed12:474.91:474.77:290.47:481.56:347:53Waxing Crescent24Wed
25Thu1:304.72:194.88:020.68:311.46:357:52Waxing Crescent25Thu
26Fri2:174.42:554.98:381.09:211.26:367:50Waxing Crescent26Fri
27Sat3:124.13:355.09:191.410:191.16:377:49Waxing Crescent27Sat
28Sun4:193.84:225.110:071.811:260.96:387:47First Quarter28Sun
29Mon5:423.65:185.111:082.26:397:46First Quarter29Mon
30Tue7:113.76:215.212:380.612:222.56:407:44First Quarter30Tue
31Wed8:283.97:265.41:480.31:392.56:407:43Waxing Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415469)

Common Questions About Tomales Bay entrance, CA Tides

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

Slack tide in Tomales Bay entrance, CA is approximately 7:40 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 64% 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 Third Quarter (64% 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