Tides Today & Tomorrow in Bolinas, CA

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Bolinas, CA.
Next low tide : in 3h 27m at 12:06 pm (2.2 ft)
Next high tide : 7:11 pm (4.0 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:31 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9414958
Common Questions About Tides

Bolinas, CA Tides - Jul 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:412.69:574.45:43-0.33:242.14:517:36Full Moon1Sun
2Mon12:252.76:21-0.44:152.24:527:36Full Moon2Mon
3Tue1:052.86:57-0.45:082.24:527:36Full Moon3Tue
4Wed1:412.87:31-0.46:002.14:537:36Full Moon4Wed
5Thu2:173.08:04-0.46:512.04:537:36Waning Gibbous5Thu
6Fri12:274.42:523.18:37-0.37:452.04:547:36Waning Gibbous6Fri
7Sat1:154.23:293.39:09-0.18:451.94:557:35Waning Gibbous7Sat
8Sun2:083.94:093.59:420.19:591.84:557:35Third Quarter8Sun
9Mon3:113.54:513.810:170.311:281.64:567:35Third Quarter9Mon
10Tue4:313.05:374.110:540.64:567:34Third Quarter10Tue
11Wed6:022.76:244.412:571.311:34 AM0.94:577:34Third Quarter11Wed
12Thu7:282.57:134.72:140.812:181.24:587:34Waning Crescent12Thu
13Fri8:442.48:034.93:190.31:081.44:587:33Waning Crescent13Fri
14Sat9:512.58:525.04:16-0.12:041.74:597:33Waning Crescent14Sat
15Sun10:492.79:415.05:08-0.43:091.85:007:32New Moon15Sun
16Mon11:422.910:295.05:54-0.64:191.95:017:32New Moon16Mon
17Tue12:303.16:37-0.65:261.95:017:31New Moon17Tue
18Wed1:163.37:17-0.66:261.95:027:31New Moon18Wed
19Thu12:034.62:013.47:54-0.47:231.85:037:30Waxing Crescent19Thu
20Fri12:514.42:443.68:28-0.28:191.85:047:29Waxing Crescent20Fri
21Sat1:404.03:283.79:000.19:191.75:047:29Waxing Crescent21Sat
22Sun2:343.64:113.99:300.410:271.75:057:28First Quarter22Sun
23Mon3:383.14:554.010:000.711:411.55:067:27First Quarter23Mon
24Tue4:522.85:394.110:311.15:077:26First Quarter24Tue
25Wed6:132.56:224.112:551.211:06 AM1.45:077:26First Quarter25Wed
26Thu7:322.57:054.22:030.911:48 AM1.75:087:25Waxing Gibbous26Thu
27Fri8:442.57:474.33:000.512:371.95:097:24Waxing Gibbous27Fri
28Sat9:442.78:264.33:490.21:302.15:107:23Waxing Gibbous28Sat
29Sun10:342.89:044.44:340.02:272.25:117:22Waxing Gibbous29Sun
30Mon11:152.99:424.55:14-0.13:252.25:127:21Full Moon30Mon
31Tue11:513.010:204.65:52-0.24:192.25:127:20Full Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414958)

Common Questions About Bolinas, CA Tides

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What time does the tide turn (slack tide) in Bolinas, CA today?

Slack tide in Bolinas, CA is approximately 3:38 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 Bolinas, CA?

Bolinas, CA is currently in a transitional phase. Tonight's moon is 66% 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 Bolinas, 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 Bolinas, CA?

Tide predictions for Bolinas, 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 Bolinas, CA?

Tide data for Bolinas, CA is sourced from NOAA Station #9414958. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414958.

What is the moon phase in Bolinas, CA tonight?

Tonight the moon over Bolinas, CA is First Quarter (66% illuminated). This places Bolinas, 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