Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Alameda, CA.
Next low tide : 9:51 pm (1.3 ft)
Next high tide : in 4h 36m at 3:36 pm (6.5 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - May 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:396.53:094.87:43-0.57:273.35:136:59Waxing Crescent1Sun
2Mon1:176.44:074.78:28-0.58:173.55:127:00Waxing Crescent2Mon
3Tue2:036.25:094.79:21-0.59:253.65:107:01Waxing Crescent3Tue
4Wed3:006.06:084.910:22-0.410:493.45:097:02First Quarter4Wed
5Thu4:095.77:005.111:28-0.35:087:02First Quarter5Thu
6Fri5:305.47:445.512:103.012:30-0.35:077:03First Quarter6Fri
7Sat6:525.48:235.91:192.31:26-0.15:067:04Waxing Gibbous7Sat
8Sun8:075.48:596.42:191.42:160.25:057:05Waxing Gibbous8Sun
9Mon9:175.49:356.83:120.53:030.65:047:06Waxing Gibbous9Mon
10Tue10:215.510:117.24:03-0.33:481.15:037:07Waxing Gibbous10Tue
11Wed11:235.510:487.44:52-0.94:341.75:027:08Full Moon11Wed
12Thu12:235.55:40-1.35:202.25:017:09Full Moon12Thu
13Fri1:215.56:28-1.56:082.65:007:10Full Moon13Fri
14Sat12:067.32:195.47:16-1.57:003.04:597:10Waning Gibbous14Sat
15Sun12:497.03:175.48:05-1.37:573.24:597:11Waning Gibbous15Sun
16Mon1:356.64:145.38:56-0.99:003.34:587:12Waning Gibbous16Mon
17Tue2:266.15:125.39:50-0.510:113.34:577:13Waning Gibbous17Tue
18Wed3:255.56:065.310:46-0.111:253.04:567:14Third Quarter18Wed
19Thu4:355.06:545.411:420.24:557:15Third Quarter19Thu
20Fri5:514.77:355.612:342.612:340.54:557:16Third Quarter20Fri
21Sat7:064.58:115.81:352.11:210.84:547:16Third Quarter21Sat
22Sun8:144.58:426.02:271.52:041.24:537:17Waning Crescent22Sun
23Mon9:154.59:106.23:130.92:431.64:537:18Waning Crescent23Mon
24Tue10:114.69:366.43:540.43:212.04:527:19Waning Crescent24Tue
25Wed11:044.710:036.64:310.03:582.44:517:20Waning Crescent25Wed
26Thu11:544.910:326.75:07-0.34:352.84:517:20New Moon26Thu
27Fri12:425.05:41-0.65:133.14:507:21New Moon27Fri
28Sat1:295.06:16-0.85:523.34:507:22New Moon28Sat
29Sun2:155.16:53-0.96:343.54:497:23Waxing Crescent29Sun
30Mon12:186.83:025.17:33-1.07:213.54:497:23Waxing Crescent30Mon
31Tue1:026.73:505.18:17-1.08:173.54:497:24Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414750)

Common Questions About Alameda, CA Tides

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What time does the tide turn (slack tide) in Alameda, CA today?

Slack tide in Alameda, CA is approximately 6:43 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 Alameda, CA?

Alameda, CA is currently in a spring phase. Tonight's moon is 19% 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 maximum.

What datum are Alameda, 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 Alameda, CA?

Tide predictions for Alameda, 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 Alameda, CA?

Tide data for Alameda, CA is sourced from NOAA Station #9414750. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414750.

What is the moon phase in Alameda, CA tonight?

Tonight the moon over Alameda, CA is Waxing Crescent (19% illuminated). This places Alameda, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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