Tides Today & Tomorrow in Bolinas, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Bolinas, CA.
Next low tide : in 45m at 9:44 am (1.3 ft)
Next high tide : 4:29 pm (4.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:28 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9414958
Common Questions About Tides

Bolinas, CA Tides - Aug 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:552.94:204.59:360.911:541.05:137:20Third Quarter1Wed
2Thu5:162.65:124.510:151.35:147:19Third Quarter2Thu
3Fri6:412.56:084.41:090.711:05 AM1.75:157:18Third Quarter3Fri
4Sat8:002.67:044.42:150.412:092.05:167:17Waning Crescent4Sat
5Sun9:052.87:574.33:090.11:212.15:167:16Waning Crescent5Sun
6Mon9:563.08:454.33:560.02:282.25:177:15Waning Crescent6Mon
7Tue10:383.29:274.34:37-0.13:262.15:187:14Waning Crescent7Tue
8Wed11:143.310:054.35:140.04:172.15:197:13New Moon8Wed
9Thu11:463.410:404.25:460.05:021.95:207:11New Moon9Thu
10Fri12:143.46:150.25:431.85:217:10New Moon10Fri
11Sat12:393.56:380.36:241.75:227:09New Moon11Sat
12Sun1:013.66:580.57:061.65:227:08Waxing Crescent12Sun
13Mon12:243.81:223.87:150.67:521.55:237:07Waxing Crescent13Mon
14Tue1:063.51:444.07:340.88:451.45:247:05Waxing Crescent14Tue
15Wed1:553.22:134.27:581.09:521.35:257:04Waxing Crescent15Wed
16Thu3:012.82:504.38:271.311:131.25:267:03First Quarter16Thu
17Fri4:302.43:394.49:041.55:277:02First Quarter17Fri
18Sat6:072.34:404.512:340.99:52 AM1.85:287:00First Quarter18Sat
19Sun7:302.45:564.51:430.610:57 AM2.05:296:59First Quarter19Sun
20Mon8:342.67:144.62:420.212:192.15:296:58Waxing Gibbous20Mon
21Tue9:232.88:204.83:320.01:452.05:306:56Waxing Gibbous21Tue
22Wed10:043.19:184.84:18-0.23:041.85:316:55Waxing Gibbous22Wed
23Thu10:423.410:114.84:59-0.24:121.65:326:54Full Moon23Thu
24Fri11:203.711:004.65:36-0.15:151.45:336:52Full Moon24Fri
25Sat11:574.011:494.46:110.06:131.15:346:51Full Moon25Sat
26Sun12:344.26:430.27:101.05:356:49Waning Gibbous26Sun
27Mon12:404.01:124.47:130.58:080.95:356:48Waning Gibbous27Mon
28Tue1:353.61:524.57:420.89:090.85:366:47Waning Gibbous28Tue
29Wed2:383.12:334.58:131.110:140.85:376:45Waning Gibbous29Wed
30Thu3:512.83:204.48:491.511:250.75:386:44Third Quarter30Thu
31Fri5:122.74:154.29:361.85:396:42Third Quarter31Fri
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 1:06 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 37% 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 (37% 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