Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Alameda, CA.
Next low tide : in 3h 32m at 4:03 am (-0.5 ft)
Next high tide : 11:04 am (5.2 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - May 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:386.61:565.47:16-0.57:071.96:137:59Full Moon1Mon
2Tue1:126.72:475.47:55-0.77:492.26:118:00Waning Gibbous2Tue
3Wed1:506.83:405.38:39-0.88:362.46:108:01Waning Gibbous3Wed
4Thu2:336.74:385.39:28-0.89:332.76:098:02Waning Gibbous4Thu
5Fri3:246.45:405.310:24-0.710:422.86:088:03Waning Gibbous5Fri
6Sat4:246.16:435.411:27-0.56:078:03Third Quarter6Sat
7Sun5:375.77:435.712:022.712:33-0.36:068:04Third Quarter7Sun
8Mon6:575.48:366.01:202.31:37-0.16:058:05Third Quarter8Mon
9Tue8:165.49:236.32:301.72:360.16:048:06Waning Crescent9Tue
10Wed9:275.410:076.63:311.03:290.36:038:07Waning Crescent10Wed
11Thu10:315.510:476.84:250.44:180.76:028:08Waning Crescent11Thu
12Fri11:305.511:257.05:14-0.15:041.06:018:09Waning Crescent12Fri
13Sat12:255.56:00-0.55:481.46:008:10New Moon13Sat
14Sun12:027.01:175.56:43-0.76:321.85:598:11New Moon14Sun
15Mon12:376.92:085.57:24-0.87:152.25:598:11New Moon15Mon
16Tue1:116.72:575.48:04-0.87:592.55:588:12Waxing Crescent16Tue
17Wed1:466.53:455.38:43-0.68:462.75:578:13Waxing Crescent17Wed
18Thu2:226.24:345.29:23-0.49:362.95:568:14Waxing Crescent18Thu
19Fri3:025.85:245.210:05-0.210:343.05:558:15Waxing Crescent19Fri
20Sat3:495.56:155.210:510.111:383.05:558:16First Quarter20Sat
21Sun4:445.17:055.311:420.45:548:16First Quarter21Sun
22Mon5:514.77:515.412:462.712:360.65:538:17First Quarter22Mon
23Tue7:054.68:325.61:482.41:300.85:538:18First Quarter23Tue
24Wed8:184.59:095.92:441.92:201.05:528:19Waxing Gibbous24Wed
25Thu9:234.69:446.23:331.33:061.25:518:20Waxing Gibbous25Thu
26Fri10:224.810:176.44:170.83:501.55:518:20Waxing Gibbous26Fri
27Sat11:175.010:516.74:580.24:321.75:508:21Waxing Gibbous27Sat
28Sun12:105.25:38-0.35:152.05:508:22Full Moon28Sun
29Mon1:015.36:18-0.75:592.25:498:23Full Moon29Mon
30Tue12:047.11:515.56:59-1.16:452.45:498:23Full Moon30Tue
31Wed12:457.22:425.67:43-1.37:342.65:498:24Full Moon31Wed
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 7:33 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 Alameda, CA?

Alameda, CA is currently in a spring phase. Tonight's moon is 12% 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 Waning Crescent (12% 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