Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Alameda, CA.
Next low tide : 11:22 pm (1.4 ft)
Next high tide : in 3h 05m at 4:44 pm (6.6 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - Jun 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:404.47:575.71:192.212:561.05:488:24First Quarter1Tue
2Wed7:584.28:336.02:201.71:441.45:488:25First Quarter2Wed
3Thu9:114.29:056.23:131.22:301.95:488:26Waxing Gibbous3Thu
4Fri10:174.49:376.44:000.63:152.35:478:26Waxing Gibbous4Fri
5Sat11:164.610:086.64:430.23:592.75:478:27Waxing Gibbous5Sat
6Sun12:084.85:22-0.24:423.05:478:28Waxing Gibbous6Sun
7Mon12:575.06:00-0.65:243.25:478:28Full Moon7Mon
8Tue1:425.16:37-0.86:073.35:468:29Full Moon8Tue
9Wed2:255.27:14-1.06:503.45:468:29Full Moon9Wed
10Thu12:367.03:075.37:53-1.27:353.35:468:30Full Moon10Thu
11Fri1:206.93:485.38:33-1.28:253.25:468:30Waning Gibbous11Fri
12Sat2:076.74:305.49:15-1.19:213.05:468:31Waning Gibbous12Sat
13Sun2:596.45:125.69:59-0.910:262.85:468:31Waning Gibbous13Sun
14Mon3:595.95:555.910:45-0.411:382.35:468:32Third Quarter14Mon
15Tue5:095.36:396.211:350.15:468:32Third Quarter15Tue
16Wed6:324.87:246.612:511.712:280.85:468:32Third Quarter16Wed
17Thu8:014.58:087.02:021.01:241.45:468:33Waning Crescent17Thu
18Fri9:254.68:547.33:050.32:212.05:468:33Waning Crescent18Fri
19Sat10:394.89:397.54:03-0.43:192.55:468:33Waning Crescent19Sat
20Sun11:445.110:267.64:56-0.94:172.95:478:34Waning Crescent20Sun
21Mon12:405.35:46-1.25:133.15:478:34New Moon21Mon
22Tue1:315.56:33-1.36:073.25:478:34New Moon22Tue
23Wed2:185.67:17-1.37:003.15:478:34New Moon23Wed
24Thu12:447.13:015.67:58-1.27:503.15:488:34Waxing Crescent24Thu
25Fri1:296.83:425.68:37-0.98:413.05:488:34Waxing Crescent25Fri
26Sat2:146.44:205.69:14-0.69:332.85:488:35Waxing Crescent26Sat
27Sun2:595.94:575.69:51-0.110:282.75:498:35Waxing Crescent27Sun
28Mon3:495.35:335.710:270.411:282.55:498:35First Quarter28Mon
29Tue4:474.86:095.811:050.95:498:35First Quarter29Tue
30Wed5:584.36:466.012:312.111:48 AM1.55:508:35First Quarter30Wed
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 8:03 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 transitional phase. Tonight's moon is 64% 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 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 Third Quarter (64% illuminated). This places Alameda, 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