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 31m 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 - Aug 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:275.05:026.510:131.111:321.16:138:18First Quarter1Sun
2Mon5:464.55:546.611:071.76:148:17First Quarter2Mon
3Tue7:164.36:516.712:470.712:112.36:148:16First Quarter3Tue
4Wed8:464.47:516.81:590.41:242.66:158:15Waxing Gibbous4Wed
5Thu9:594.78:516.93:030.02:362.76:168:14Waxing Gibbous5Thu
6Fri10:565.09:477.03:59-0.33:392.66:178:12Waxing Gibbous6Fri
7Sat11:435.310:407.04:48-0.54:362.56:188:11Waxing Gibbous7Sat
8Sun12:255.55:32-0.55:262.36:198:10Full Moon8Sun
9Mon1:035.66:13-0.56:142.16:208:09Full Moon9Mon
10Tue12:146.71:385.76:50-0.36:582.06:208:08Full Moon10Tue
11Wed12:586.32:115.87:250.07:421.86:218:07Full Moon11Wed
12Thu1:416.02:425.88:000.48:251.86:228:06Waning Gibbous12Thu
13Fri2:255.63:125.88:340.89:101.76:238:04Waning Gibbous13Fri
14Sat3:105.13:445.89:091.39:581.76:248:03Waning Gibbous14Sat
15Sun4:014.74:195.89:461.810:531.66:258:02Waning Gibbous15Sun
16Mon5:034.34:595.810:292.211:571.56:268:01Third Quarter16Mon
17Tue6:224.05:475.811:222.76:267:59Third Quarter17Tue
18Wed7:554.06:425.81:051.412:302.96:277:58Third Quarter18Wed
19Thu9:134.27:395.92:081.11:413.16:287:57Third Quarter19Thu
20Fri10:074.58:356.13:020.82:423.06:297:55Waning Crescent20Fri
21Sat10:484.89:276.33:480.43:332.86:307:54Waning Crescent21Sat
22Sun11:235.010:166.54:280.14:192.56:317:53Waning Crescent22Sun
23Mon11:565.311:046.75:06-0.15:022.26:327:51New Moon23Mon
24Tue12:285.65:43-0.25:451.86:327:50New Moon24Tue
25Wed1:025.96:19-0.26:301.46:337:48New Moon25Wed
26Thu12:416.61:366.26:570.07:171.16:347:47New Moon26Thu
27Fri1:326.32:136.47:360.38:070.86:357:45Waxing Crescent27Fri
28Sat2:266.02:526.68:170.89:010.66:367:44Waxing Crescent28Sat
29Sun3:255.53:356.79:011.310:010.56:377:43Waxing Crescent29Sun
30Mon4:325.14:256.79:521.911:080.56:387:41First Quarter30Mon
31Tue5:514.75:226.610:532.46:387:40First Quarter31Tue
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