Tides Today & Tomorrow in San Leandro Marina, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in San Leandro Marina, CA.
Next low tide (tomorrow) : 12:22 am (1.3 ft)
Next high tide : in 4h 24m at 5:14 pm (7.2 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9414688
Common Questions About Tides

San Leandro Marina, CA Tides - Feb 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:478.010:155.81:433.33:32-0.27:135:31Waxing Gibbous1Sat
2Sun8:488.311:106.22:553.44:29-0.97:125:32Waxing Gibbous2Sun
3Mon9:488.611:596.64:003.25:21-1.37:115:34Waxing Gibbous3Mon
4Tue10:448.74:592.96:09-1.67:105:35Full Moon4Tue
5Wed12:456.911:39 AM8.75:542.66:53-1.57:095:36Full Moon5Wed
6Thu1:277.112:318.56:472.27:34-1.37:085:37Full Moon6Thu
7Fri2:077.21:228.07:391.98:12-0.87:075:38Waning Gibbous7Fri
8Sat2:467.32:147.38:301.78:49-0.17:065:39Waning Gibbous8Sat
9Sun3:237.33:086.69:221.69:240.77:055:40Waning Gibbous9Sun
10Mon3:597.34:085.810:181.610:011.57:045:41Waning Gibbous10Mon
11Tue4:367.25:195.211:201.610:442.37:035:42Third Quarter11Tue
12Wed5:167.06:434.912:291.57:025:44Third Quarter12Wed
13Thu6:026.98:085.01:391.37:015:45Third Quarter13Thu
14Fri6:546.89:185.312:443.52:430.96:595:46Third Quarter14Fri
15Sat7:506.810:135.71:553.73:370.66:585:47Waning Crescent15Sat
16Sun8:446.910:586.02:583.64:220.36:575:48Waning Crescent16Sun
17Mon9:337.111:376.23:523.45:020.06:565:49Waning Crescent17Mon
18Tue10:187.24:393.25:38-0.26:555:50Waning Crescent18Tue
19Wed12:136.311:00 AM7.45:222.96:11-0.36:545:51New Moon19Wed
20Thu12:466.411:40 AM7.46:032.76:41-0.36:525:52New Moon20Thu
21Fri1:156.512:207.36:422.47:10-0.16:515:53New Moon21Fri
22Sat1:416.71:017.17:202.27:380.16:505:54New Moon22Sat
23Sun2:056.81:436.87:581.98:070.56:485:55Waxing Crescent23Sun
24Mon2:297.02:316.38:391.68:391.16:475:56Waxing Crescent24Mon
25Tue2:577.23:285.89:261.49:161.76:465:57Waxing Crescent25Tue
26Wed3:327.44:415.310:221.210:012.46:445:58First Quarter26Wed
27Thu4:167.56:135.011:311.011:013.06:435:59First Quarter27Thu
28Fri5:107.57:475.212:530.76:426:00First Quarter28Fri
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 8:48 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 San Leandro Marina, CA?

San Leandro Marina, 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 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 (37% illuminated). This places San Leandro Marina, 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