Tides Today & Tomorrow in San Leandro Marina, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in San Leandro Marina, CA.
Next low tide : 11:40 am (3.0 ft)
Next high tide : in 2h 41m at 6:44 am (5.1 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:28 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9414688
Common Questions About Tides

San Leandro Marina, CA Tides - Sep 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:116.19:117.73:410.03:153.06:387:38Waning Crescent1Sat
2Sun11:066.410:097.74:40-0.24:172.86:397:37Waning Crescent2Sun
3Mon11:536.611:027.75:30-0.45:112.56:407:35Waning Crescent3Mon
4Tue12:356.86:13-0.46:002.36:417:34New Moon4Tue
5Wed1:126.86:51-0.26:452.06:427:32New Moon5Wed
6Thu12:337.51:466.87:240.17:261.96:427:31New Moon6Thu
7Fri1:147.32:156.87:530.48:051.76:437:29New Moon7Fri
8Sat1:557.02:406.88:200.88:411.66:447:28Waxing Crescent8Sat
9Sun2:356.73:036.88:471.29:171.56:457:26Waxing Crescent9Sun
10Mon3:186.33:276.89:161.69:541.56:467:25Waxing Crescent10Mon
11Tue4:065.93:536.89:492.110:371.56:477:23Waxing Crescent11Tue
12Wed5:035.64:276.710:282.611:281.56:487:21First Quarter12Wed
13Thu6:145.35:116.711:183.16:487:20First Quarter13Thu
14Fri7:365.26:086.612:321.512:233.56:497:18First Quarter14Fri
15Sat8:525.47:156.61:471.31:363.66:507:17First Quarter15Sat
16Sun9:535.78:256.82:571.02:473.56:517:15Waxing Gibbous16Sun
17Mon10:416.09:287.13:550.63:473.16:527:14Waxing Gibbous17Mon
18Tue11:226.310:257.44:440.24:402.76:537:12Waxing Gibbous18Tue
19Wed11:596.611:187.65:27-0.15:302.26:537:11Waxing Gibbous19Wed
20Thu12:356.96:08-0.36:181.76:547:09Full Moon20Thu
21Fri12:107.71:097.36:48-0.27:061.16:557:07Full Moon21Fri
22Sat1:027.71:447.67:280.07:550.76:567:06Full Moon22Sat
23Sun1:577.42:207.88:090.48:450.36:577:04Waning Gibbous23Sun
24Mon2:547.12:587.98:521.09:380.16:587:03Waning Gibbous24Mon
25Tue3:566.63:417.99:381.610:370.16:597:01Waning Gibbous25Tue
26Wed5:066.24:307.710:312.311:430.26:597:00Third Quarter26Wed
27Thu6:246.05:277.411:332.97:006:58Third Quarter27Thu
28Fri7:445.96:367.112:580.312:473.27:016:57Third Quarter28Fri
29Sat8:556.27:517.02:140.22:053.17:026:55Third Quarter29Sat
30Sun8:546.58:017.02:210.12:142.86:035:54Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414688)

Common Questions About San Leandro Marina, CA Tides

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What time does the tide turn (slack tide) in San Leandro Marina, CA today?

Slack tide in San Leandro Marina, CA is approximately 9:12 am — 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 San Leandro Marina, CA?

San Leandro Marina, CA is currently in a neap phase. Tonight's moon is 47% 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 San Leandro Marina, 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 San Leandro Marina, CA?

Tide predictions for San Leandro Marina, 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 San Leandro Marina, CA?

Tide data for San Leandro Marina, CA is sourced from NOAA Station #9414688. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414688.

What is the moon phase in San Leandro Marina, CA tonight?

Tonight the moon over San Leandro Marina, CA is First Quarter (47% illuminated). This places San Leandro Marina, 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