Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Alameda, CA.
Next low tide : 12:51 pm (2.7 ft)
Next high tide : in 4h 48m at 8:03 am (4.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - Jun 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:076.14:355.19:16-0.49:273.25:488:25Waning Gibbous1Sat
2Sun2:495.85:145.19:53-0.210:203.15:488:25Waning Gibbous2Sun
3Mon3:375.45:535.310:330.011:222.85:488:26Third Quarter3Mon
4Tue4:345.06:325.511:160.45:478:27Third Quarter4Tue
5Wed5:434.67:105.812:282.512:040.85:478:27Third Quarter5Wed
6Thu7:064.37:486.11:321.912:551.25:478:28Third Quarter6Thu
7Fri8:314.38:276.52:301.31:471.75:478:28Waning Crescent7Fri
8Sat9:474.59:086.93:240.52:412.15:468:29Waning Crescent8Sat
9Sun10:554.79:517.34:14-0.23:352.55:468:29Waning Crescent9Sun
10Mon11:565.010:377.65:03-0.94:292.85:468:30Waning Crescent10Mon
11Tue12:525.35:52-1.45:242.95:468:30New Moon11Tue
12Wed1:445.56:40-1.76:202.95:468:31New Moon12Wed
13Thu12:177.82:345.77:29-1.97:172.95:468:31New Moon13Thu
14Fri1:097.63:225.88:18-1.88:172.75:468:32Waxing Crescent14Fri
15Sat2:047.34:095.99:06-1.59:192.55:468:32Waxing Crescent15Sat
16Sun3:016.74:566.19:54-1.110:262.35:468:32Waxing Crescent16Sun
17Mon4:036.15:446.210:43-0.511:372.05:468:33First Quarter17Mon
18Tue5:125.46:316.411:330.25:468:33First Quarter18Tue
19Wed6:304.87:186.612:491.512:250.95:478:33First Quarter19Wed
20Thu7:534.58:036.81:581.01:191.65:478:34First Quarter20Thu
21Fri9:124.58:476.93:000.52:142.25:478:34Waxing Gibbous21Fri
22Sat10:234.69:286.93:550.13:082.65:478:34Waxing Gibbous22Sat
23Sun11:224.910:076.94:44-0.34:002.95:478:34Waxing Gibbous23Sun
24Mon12:145.15:27-0.54:493.15:488:34Waxing Gibbous24Mon
25Tue12:585.26:06-0.65:343.25:488:35Full Moon25Tue
26Wed1:395.36:42-0.66:173.25:488:35Full Moon26Wed
27Thu2:155.37:15-0.66:583.25:498:35Full Moon27Thu
28Fri12:356.62:495.37:47-0.67:373.15:498:35Full Moon28Fri
29Sat1:126.43:215.48:16-0.58:173.05:498:35Waning Gibbous29Sat
30Sun1:506.23:515.58:46-0.48:582.95:508:35Waning Gibbous30Sun
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 10:27 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 transitional phase. Tonight's moon is 63% 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 First Quarter (63% 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