Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Alameda, CA.
Next low tide : in 4h 27m at 10:02 am (1.5 ft)
Next high tide : 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 - Feb 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:316.012:496.27:001.97:17-0.17:135:32Waning Gibbous1Tue
2Wed2:016.01:325.87:431.87:470.47:125:33Waning Gibbous2Wed
3Thu2:296.02:185.38:281.78:171.07:115:34Waning Gibbous3Thu
4Fri2:576.03:104.79:151.68:491.67:105:35Waning Gibbous4Fri
5Sat3:276.04:164.310:101.59:272.27:095:36Third Quarter5Sat
6Sun4:026.05:424.011:131.410:162.87:095:37Third Quarter6Sun
7Mon4:466.07:154.112:231.27:085:38Third Quarter7Mon
8Tue5:416.08:324.31:290.87:075:39Third Quarter8Tue
9Wed6:416.19:274.712:463.42:260.47:065:40Waning Crescent9Wed
10Thu7:416.310:105.01:543.43:140.07:045:42Waning Crescent10Thu
11Fri8:356.610:475.22:493.23:55-0.47:035:43Waning Crescent11Fri
12Sat9:256.811:215.43:372.94:33-0.77:025:44Waning Crescent12Sat
13Sun10:136.911:525.74:212.55:08-0.97:015:45New Moon13Sun
14Mon11:007.05:042.15:43-0.87:005:46New Moon14Mon
15Tue12:235.911:48 AM6.95:471.66:17-0.66:595:47New Moon15Tue
16Wed12:546.212:376.66:331.26:52-0.36:585:48Waxing Crescent16Wed
17Thu1:266.51:306.17:210.87:290.36:565:49Waxing Crescent17Thu
18Fri2:006.82:295.68:130.68:081.06:555:50Waxing Crescent18Fri
19Sat2:396.93:385.09:120.48:531.86:545:51Waxing Crescent19Sat
20Sun3:236.95:024.610:210.39:492.56:535:52First Quarter20Sun
21Mon4:176.86:354.511:390.211:053.06:525:53First Quarter21Mon
22Tue5:216.77:594.712:580.06:505:54First Quarter22Tue
23Wed6:336.69:035.112:323.22:08-0.26:495:55Waxing Gibbous23Wed
24Thu7:436.69:535.41:503.03:06-0.56:485:56Waxing Gibbous24Thu
25Fri8:456.610:365.72:542.73:54-0.66:465:57Waxing Gibbous25Fri
26Sat9:406.611:135.93:482.34:34-0.66:455:59Waxing Gibbous26Sat
27Sun10:296.511:466.04:361.95:10-0.46:446:00Full Moon27Sun
28Mon11:156.35:191.65:42-0.16:426:01Full Moon28Mon
29Tue12:166.011:58 AM6.16:001.36:120.26:416:02Full Moon29Tue
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 1:23 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