Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Alameda, CA.
Next low tide : in 1h 47m at 5:31 pm (2.6 ft)
Next high tide : 11:29 pm (7.6 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:21 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - Apr 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:025.85:254.610:160.510:213.05:536:32Third Quarter1Sun
2Mon3:565.56:314.711:180.611:353.05:526:33Third Quarter2Mon
3Tue5:025.27:284.812:220.75:506:33Third Quarter3Tue
4Wed6:155.18:145.112:462.81:190.75:496:34Third Quarter4Wed
5Thu7:235.18:535.31:462.42:080.65:476:35Waning Crescent5Thu
6Fri8:235.29:265.62:371.92:500.65:466:36Waning Crescent6Fri
7Sat9:165.49:565.83:211.43:280.75:446:37Waning Crescent7Sat
8Sun10:065.510:256.14:011.04:030.85:436:38Waning Crescent8Sun
9Mon10:545.510:546.34:390.54:381.15:416:39New Moon9Mon
10Tue11:425.511:246.65:170.15:131.35:406:40New Moon10Tue
11Wed12:305.55:55-0.35:491.65:396:41New Moon11Wed
12Thu1:215.46:35-0.66:282.05:376:42New Moon12Thu
13Fri12:336.92:145.37:19-0.87:122.35:366:43Waxing Crescent13Fri
14Sat1:156.93:135.18:07-0.88:032.55:346:43Waxing Crescent14Sat
15Sun2:036.74:165.09:02-0.79:062.85:336:44Waxing Crescent15Sun
16Mon2:596.45:235.110:05-0.510:232.85:326:45First Quarter16Mon
17Tue4:076.06:265.311:13-0.311:462.55:306:46First Quarter17Tue
18Wed5:255.77:235.612:21-0.15:296:47First Quarter18Wed
19Thu6:455.58:125.91:022.01:220.05:276:48Waxing Gibbous19Thu
20Fri7:595.58:566.32:071.42:160.25:266:49Waxing Gibbous20Fri
21Sat9:055.59:366.63:030.73:040.55:256:50Waxing Gibbous21Sat
22Sun10:045.610:136.73:540.13:480.95:236:51Waxing Gibbous22Sun
23Mon11:005.610:486.84:41-0.34:301.35:226:52Full Moon23Mon
24Tue11:525.511:226.85:24-0.65:111.75:216:53Full Moon24Tue
25Wed12:415.46:05-0.75:522.05:206:54Full Moon25Wed
26Thu1:305.36:45-0.76:322.45:186:54Full Moon26Thu
27Fri12:276.52:175.27:23-0.67:142.65:176:55Waning Gibbous27Fri
28Sat1:006.33:065.18:02-0.48:002.85:166:56Waning Gibbous28Sat
29Sun2:376.04:564.99:43-0.29:513.06:157:57Waning Gibbous29Sun
30Mon3:205.75:484.910:290.110:523.06:147:58Waning Gibbous30Mon
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 8:30 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 1% 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 New Moon (1% 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