Tides Today & Tomorrow in Yerba Buena Island, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Yerba Buena Island, CA.
Next low tide (tomorrow) : 1:46 am (1.0 ft)
Next high tide : in 1h 45m at 6:32 pm (6.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9414782
Common Questions About Tides

Yerba Buena Island, CA Tides - Sep 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:184.66:266.512:230.412:082.76:397:38First Quarter1Wed
2Thu8:384.87:356.41:370.31:302.86:407:37First Quarter2Thu
3Fri9:425.18:416.42:430.22:432.66:417:35Waxing Gibbous3Fri
4Sat10:325.49:406.43:390.03:432.36:427:34Waxing Gibbous4Sat
5Sun11:145.610:346.44:270.04:352.06:437:32Waxing Gibbous5Sun
6Mon11:515.711:226.35:080.15:201.76:447:31Full Moon6Mon
7Tue12:245.85:460.26:021.56:447:29Full Moon7Tue
8Wed12:076.112:545.96:200.56:411.36:457:28Full Moon8Wed
9Thu12:505.91:225.96:530.87:181.26:467:26Full Moon9Thu
10Fri1:325.61:495.97:251.27:541.16:477:25Waning Gibbous10Fri
11Sat2:145.32:175.97:571.58:321.06:487:23Waning Gibbous11Sat
12Sun2:585.02:465.98:311.99:131.06:497:21Waning Gibbous12Sun
13Mon3:484.73:215.89:072.310:001.16:497:20Waning Gibbous13Mon
14Tue4:464.44:025.79:492.710:551.16:507:18Third Quarter14Tue
15Wed5:574.34:525.610:443.011:591.16:517:17Third Quarter15Wed
16Thu7:194.35:515.511:593.26:527:15Third Quarter16Thu
17Fri8:294.46:575.51:071.01:183.16:537:14Third Quarter17Fri
18Sat9:204.78:025.72:090.82:222.96:547:12Waning Crescent18Sat
19Sun9:595.09:025.93:000.53:142.56:557:11Waning Crescent19Sun
20Mon10:345.39:576.13:450.34:002.06:557:09Waning Crescent20Mon
21Tue11:075.710:506.24:260.24:431.56:567:07Waning Crescent21Tue
22Wed11:406.011:436.35:050.35:270.96:577:06New Moon22Wed
23Thu12:156.45:450.46:130.46:587:04New Moon23Thu
24Fri12:366.212:526.76:250.77:000.06:597:03New Moon24Fri
25Sat1:316.11:306.97:071.17:50-0.37:007:01Waxing Crescent25Sat
26Sun2:275.82:136.97:521.58:42-0.47:017:00Waxing Crescent26Sun
27Mon3:285.52:596.88:412.09:40-0.37:016:58Waxing Crescent27Mon
28Tue4:355.23:526.69:372.410:44-0.17:026:57First Quarter28Tue
29Wed5:495.04:546.310:482.711:550.17:036:55First Quarter29Wed
30Thu7:065.06:046.012:132.87:046:53First Quarter30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414782)

Common Questions About Yerba Buena Island, CA Tides

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

Slack tide in Yerba Buena Island, CA is approximately 10:09 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 53% 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 (53% 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