Tides Today & Tomorrow in Yerba Buena Island, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Yerba Buena Island, CA.
Next low tide : 11:47 pm (1.1 ft)
Next high tide : in 1h 24m at 4:45 pm (6.1 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9414782
Common Questions About Tides

Yerba Buena Island, CA Tides - Jan 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:145.011:20 AM6.45:393.26:29-0.67:255:01Full Moon1Mon
2Tue1:445.011:56 AM6.36:163.16:59-0.57:255:01Full Moon2Tue
3Wed2:135.012:336.06:543.07:30-0.47:255:02Waning Gibbous3Wed
4Thu2:425.11:115.77:362.98:01-0.17:255:03Waning Gibbous4Thu
5Fri3:115.21:545.28:242.78:330.27:255:04Waning Gibbous5Fri
6Sat3:425.42:444.79:202.59:090.77:255:05Waning Gibbous6Sat
7Sun4:165.63:504.210:242.19:481.37:255:06Third Quarter7Sun
8Mon4:525.85:213.811:331.610:362.07:255:07Third Quarter8Mon
9Tue5:346.17:113.812:411.07:255:08Third Quarter9Tue
10Wed6:216.48:484.01:430.37:255:08Waning Crescent10Wed
11Thu7:136.89:584.512:433.02:39-0.47:245:09Waning Crescent11Thu
12Fri8:087.110:514.81:523.23:32-1.07:245:10Waning Crescent12Fri
13Sat9:037.411:365.12:553.24:21-1.47:245:11Waning Crescent13Sat
14Sun9:587.63:533.05:09-1.77:245:12New Moon14Sun
15Mon12:185.410:52 AM7.64:492.85:55-1.77:235:13New Moon15Mon
16Tue12:585.511:45 AM7.45:442.56:39-1.57:235:15New Moon16Tue
17Wed1:375.712:376.96:402.27:21-1.17:235:16Waxing Crescent17Wed
18Thu2:165.91:316.37:381.98:02-0.57:225:17Waxing Crescent18Thu
19Fri2:556.12:295.58:401.78:440.27:225:18Waxing Crescent19Fri
20Sat3:356.23:344.89:461.59:271.07:215:19First Quarter20Sat
21Sun4:166.24:554.110:581.210:151.87:215:20First Quarter21Sun
22Mon5:016.26:363.912:121.07:205:21First Quarter22Mon
23Tue5:496.28:194.01:210.67:205:22First Quarter23Tue
24Wed6:416.29:344.412:233.02:210.37:195:23Waxing Gibbous24Wed
25Thu7:336.210:264.71:353.23:120.17:195:24Waxing Gibbous25Thu
26Fri8:236.211:064.92:363.33:55-0.17:185:25Waxing Gibbous26Fri
27Sat9:096.311:405.03:273.24:32-0.37:175:26Waxing Gibbous27Sat
28Sun9:516.44:103.15:06-0.47:165:28Full Moon28Sun
29Mon12:105.010:30 AM6.44:482.95:36-0.47:165:29Full Moon29Mon
30Tue12:365.111:08 AM6.35:232.76:03-0.47:155:30Full Moon30Tue
31Wed1:005.111:44 AM6.25:582.56:30-0.37:145:31Full Moon31Wed
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 8:16 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 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 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 (37% illuminated). This places Yerba Buena Island, 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