Tides Today & Tomorrow in San Leandro Marina, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in San Leandro Marina, CA.
Next low tide (tomorrow) : in 5h 58m at 2:16 am (1.2 ft)
Next high tide (tomorrow) : 8:24 am (4.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9414688
Common Questions About Tides

San Leandro Marina, CA Tides - Dec 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:347.99:345.72:071.63:270.17:054:50Waning Crescent1Sun
2Mon9:148.010:345.92:572.14:18-0.47:054:50Waning Crescent2Mon
3Tue9:518.011:276.03:452.55:04-0.77:064:50Waning Crescent3Tue
4Wed10:268.04:302.85:46-0.87:074:50New Moon4Wed
5Thu12:166.111:00 AM7.85:133.16:24-0.87:084:50New Moon5Thu
6Fri1:006.211:34 AM7.75:553.26:59-0.77:094:50New Moon6Fri
7Sat1:426.212:077.56:353.37:32-0.57:104:49New Moon7Sat
8Sun2:216.112:427.47:153.38:03-0.47:114:50Waxing Crescent8Sun
9Mon2:586.11:197.17:553.38:33-0.27:124:50Waxing Crescent9Mon
10Tue3:346.01:596.88:373.29:050.17:124:50Waxing Crescent10Tue
11Wed4:106.02:446.49:253.29:410.47:134:50Waxing Crescent11Wed
12Thu4:476.13:375.910:203.010:200.87:144:50First Quarter12Thu
13Fri5:256.34:455.311:242.811:061.47:154:50First Quarter13Fri
14Sat6:046.56:104.912:342.37:154:50First Quarter14Sat
15Sun6:446.97:414.81:421.77:164:51First Quarter15Sun
16Mon7:267.29:025.012:562.42:421.07:174:51Waxing Gibbous16Mon
17Tue8:107.610:095.31:552.83:360.37:174:51Waxing Gibbous17Tue
18Wed8:558.011:075.72:533.04:27-0.47:184:52Waxing Gibbous18Wed
19Thu9:438.33:503.25:16-0.97:194:52Full Moon19Thu
20Fri12:006.010:31 AM8.64:463.26:03-1.47:194:53Full Moon20Fri
21Sat12:496.311:22 AM8.75:403.16:50-1.67:204:53Full Moon21Sat
22Sun1:376.512:138.76:352.97:36-1.77:204:54Full Moon22Sun
23Mon2:236.71:068.47:302.78:21-1.57:214:54Waning Gibbous23Mon
24Tue3:086.92:027.98:272.59:05-1.07:214:55Waning Gibbous24Tue
25Wed3:547.13:017.29:282.39:51-0.47:214:55Waning Gibbous25Wed
26Thu4:407.24:096.310:352.110:390.47:224:56Third Quarter26Thu
27Fri5:287.45:285.611:481.711:311.27:224:56Third Quarter27Fri
28Sat6:167.66:565.21:031.27:224:57Third Quarter28Sat
29Sun7:067.78:215.212:282.02:140.67:234:58Third Quarter29Sun
30Mon7:547.89:345.51:292.63:150.17:234:59Waning Crescent30Mon
31Tue8:407.810:295.72:283.04:07-0.37:234:59Waning Crescent31Tue
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 5:20 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 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 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 (53% 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