Tides Today & Tomorrow in Yerba Buena Island, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Yerba Buena Island, CA.
Next low tide : in 1h 03m at 12:14 pm (3.3 ft)
Next high tide : 6:21 pm (5.9 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:29 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9414782
Common Questions About Tides

Yerba Buena Island, CA Tides - Sep 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:005.59:517.23:59-0.83:512.55:396:39Waning Crescent1Sun
2Mon11:375.710:457.14:44-0.84:422.15:406:38New Moon2Mon
3Tue12:125.95:26-0.75:321.75:406:36New Moon3Tue
4Wed12:466.06:06-0.36:211.35:416:35New Moon4Wed
5Thu12:286.41:206.16:440.27:111.15:426:33Waxing Crescent5Thu
6Fri1:205.81:536.27:210.88:011.05:436:32Waxing Crescent6Fri
7Sat2:165.32:276.17:591.58:540.95:446:30Waxing Crescent7Sat
8Sun3:194.83:036.08:402.29:520.95:456:29Waxing Crescent8Sun
9Mon4:364.43:445.99:302.810:570.95:456:27First Quarter9Mon
10Tue6:144.34:345.710:383.35:466:25First Quarter10Tue
11Wed7:504.55:345.612:070.912:053.55:476:24First Quarter11Wed
12Thu8:534.76:405.61:140.81:203.55:486:22First Quarter12Thu
13Fri9:354.97:405.72:110.62:173.35:496:21Waxing Gibbous13Fri
14Sat10:085.08:335.92:580.43:023.05:506:19Waxing Gibbous14Sat
15Sun10:355.19:206.03:370.23:412.75:516:18Waxing Gibbous15Sun
16Mon11:005.310:036.14:110.14:152.35:516:16Waxing Gibbous16Mon
17Tue11:245.410:456.14:420.14:492.05:526:15Full Moon17Tue
18Wed11:485.611:286.05:120.25:231.65:536:13Full Moon18Wed
19Thu12:135.85:410.46:001.25:546:11Full Moon19Thu
20Fri12:125.812:396.06:110.86:390.95:556:10Waning Gibbous20Fri
21Sat1:005.51:086.26:431.37:220.65:566:08Waning Gibbous21Sat
22Sun1:545.21:396.37:181.88:110.45:576:07Waning Gibbous22Sun
23Mon2:574.82:176.47:582.49:080.25:576:05Waning Gibbous23Mon
24Tue4:154.53:046.48:462.910:150.25:586:04Third Quarter24Tue
25Wed5:474.54:046.39:523.311:310.15:596:02Third Quarter25Wed
26Thu7:164.75:176.211:243.56:006:01Third Quarter26Thu
27Fri8:205.06:356.212:47-0.112:543.36:015:59Waning Crescent27Fri
28Sat9:085.37:476.31:53-0.22:032.86:025:57Waning Crescent28Sat
29Sun9:475.58:516.42:48-0.33:002.36:035:56Waning Crescent29Sun
30Mon10:235.89:496.43:34-0.33:501.76:035:54Waning Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414782)

Common Questions About Yerba Buena Island, CA Tides

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What time does the tide turn (slack tide) in Yerba Buena Island, CA today?

Slack tide in Yerba Buena Island, CA is approximately 3:17 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 Yerba Buena Island, CA?

Yerba Buena Island, CA is currently in a neap phase. Tonight's moon is 56% 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 Yerba Buena Island, 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 Yerba Buena Island, CA?

Tide predictions for Yerba Buena Island, 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 Yerba Buena Island, CA?

Tide data for Yerba Buena Island, CA is sourced from NOAA Station #9414782. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414782.

What is the moon phase in Yerba Buena Island, CA tonight?

Tonight the moon over Yerba Buena Island, CA is First Quarter (56% illuminated). This places Yerba Buena Island, 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