Tides Today & Tomorrow in Bolinas, CA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Bolinas, CA.
Next low tide : 12:06 pm (2.2 ft)
Next high tide : in 39m at 8:29 am (2.7 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 - Aug 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:243.16:27-0.25:102.15:137:19Full Moon1Wed
2Thu12:543.26:59-0.25:591.95:147:18Full Moon2Thu
3Fri1:253.37:30-0.16:491.85:157:17Waning Gibbous3Fri
4Sat12:254.41:563.57:580.17:411.75:167:16Waning Gibbous4Sat
5Sun1:124.22:313.88:260.38:421.65:177:15Waning Gibbous5Sun
6Mon2:063.73:114.08:550.59:561.55:187:14Waning Gibbous6Mon
7Tue3:123.33:564.29:280.811:241.35:187:13Third Quarter7Tue
8Wed4:362.84:484.410:061.15:197:12Third Quarter8Wed
9Thu6:072.65:464.612:491.010:54 AM1.45:207:11Third Quarter9Thu
10Fri7:322.56:474.72:030.611:52 AM1.75:217:10Waning Crescent10Fri
11Sat8:452.77:474.83:050.21:021.85:227:09Waning Crescent11Sat
12Sun9:452.98:444.83:58-0.12:181.95:237:07Waning Crescent12Sun
13Mon10:343.19:364.84:46-0.33:301.95:247:06New Moon13Mon
14Tue11:183.310:244.75:29-0.34:341.85:257:05New Moon14Tue
15Wed11:593.511:094.66:08-0.35:311.75:257:04New Moon15Wed
16Thu12:373.66:43-0.16:221.65:267:02New Moon16Thu
17Fri1:153.87:150.17:121.65:277:01Waxing Crescent17Fri
18Sat12:374.11:503.97:430.38:011.55:287:00Waxing Crescent18Sat
19Sun1:233.82:253.98:070.68:551.55:296:58Waxing Crescent19Sun
20Mon2:163.43:004.08:290.99:551.45:306:57Waxing Crescent20Mon
21Tue3:183.03:364.08:541.211:041.35:316:56First Quarter21Tue
22Wed4:342.74:164.09:261.55:326:54First Quarter22Wed
23Thu5:582.65:034.012:161.110:09 AM1.85:326:53First Quarter23Thu
24Fri7:182.66:004.01:240.811:04 AM2.15:336:52First Quarter24Fri
25Sat8:262.87:004.12:220.512:132.35:346:50Waxing Gibbous25Sat
26Sun9:192.97:564.23:120.31:262.35:356:49Waxing Gibbous26Sun
27Mon10:003.18:454.33:560.12:312.25:366:47Waxing Gibbous27Mon
28Tue10:353.29:304.44:360.13:282.15:376:46Waxing Gibbous28Tue
29Wed11:063.310:124.55:130.04:191.95:386:45Full Moon29Wed
30Thu11:343.410:544.55:470.15:081.75:386:43Full Moon30Thu
31Fri12:023.66:180.25:571.55:396:42Full Moon31Fri
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 10:17 am — 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