Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Alameda, CA.
Next low tide : in 2h 11m at 1:44 am (1.1 ft)
Next high tide : 8:03 am (4.3 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - Sep 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:454.55:306.811:083.26:397:39Third Quarter1Sun
2Mon8:114.76:406.812:570.512:323.46:397:37Third Quarter2Mon
3Tue9:195.07:546.92:120.21:573.36:407:36Waning Crescent3Tue
4Wed10:125.49:047.03:16-0.23:072.96:417:34Waning Crescent4Wed
5Thu10:575.710:067.24:10-0.44:082.36:427:33Waning Crescent5Thu
6Fri11:376.111:047.24:57-0.55:021.86:437:31New Moon6Fri
7Sat12:156.45:40-0.45:531.26:447:30New Moon7Sat
8Sun12:516.66:20-0.16:420.86:447:28New Moon8Sun
9Mon12:526.81:256.86:590.37:300.56:457:27New Moon9Mon
10Tue1:446.41:596.97:370.98:180.46:467:25Waxing Crescent10Tue
11Wed2:386.02:336.88:151.59:060.46:477:24Waxing Crescent11Wed
12Thu3:345.53:086.78:552.19:560.56:487:22Waxing Crescent12Thu
13Fri4:355.23:476.59:402.710:520.76:497:21Waxing Crescent13Fri
14Sat5:454.94:336.210:353.111:560.96:507:19First Quarter14Sat
15Sun7:004.85:306.011:443.46:507:17First Quarter15Sun
16Mon8:114.96:385.81:050.91:003.46:517:16First Quarter16Mon
17Tue9:095.17:465.82:090.82:083.26:527:14First Quarter17Tue
18Wed9:545.38:475.93:040.73:052.96:537:13Waxing Gibbous18Wed
19Thu10:305.59:416.03:480.53:532.56:547:11Waxing Gibbous19Thu
20Fri11:025.610:286.14:260.54:362.16:557:10Waxing Gibbous20Fri
21Sat11:315.811:136.15:000.55:141.76:557:08Waxing Gibbous21Sat
22Sun11:576.011:586.15:310.65:511.36:567:07Full Moon22Sun
23Mon12:236.36:010.96:270.96:577:05Full Moon23Mon
24Tue12:426.012:486.56:311.27:030.66:587:03Full Moon24Tue
25Wed1:285.81:166.77:021.67:410.36:597:02Waning Gibbous25Wed
26Thu2:175.61:476.97:362.08:230.17:007:00Waning Gibbous26Thu
27Fri3:115.42:247.08:142.49:120.07:016:59Waning Gibbous27Fri
28Sat4:135.13:086.98:592.810:090.17:016:57Waning Gibbous28Sat
29Sun5:254.94:026.79:573.211:180.17:026:56Third Quarter29Sun
30Mon6:424.95:106.511:153.47:036:54Third Quarter30Mon
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 4:53 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 neap phase. Tonight's moon is 53% 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 minimum.

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 (53% illuminated). This places Alameda, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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