Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Alameda, CA.
Next low tide : in 5h 25m at 9:00 am (-0.8 ft)
Next high tide : 3:52 pm (6.2 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - Aug 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:194.58:096.42:401.12:033.06:128:18Waning Crescent1Mon
2Tue10:174.88:596.63:330.73:013.16:138:17Waning Crescent2Tue
3Wed11:045.09:466.74:180.43:533.06:148:16Waning Crescent3Wed
4Thu11:455.310:326.94:590.14:402.96:158:15Waning Crescent4Thu
5Fri12:225.55:36-0.25:242.76:168:14New Moon5Fri
6Sat12:565.76:10-0.36:062.46:178:13New Moon6Sat
7Sun12:007.01:295.96:44-0.46:472.16:178:11New Moon7Sun
8Mon12:447.02:016.17:18-0.37:311.86:188:10New Moon8Mon
9Tue1:306.82:346.47:53-0.18:171.66:198:09Waxing Crescent9Tue
10Wed2:206.43:096.68:290.29:071.36:208:08Waxing Crescent10Wed
11Thu3:146.03:486.89:090.710:051.16:218:07Waxing Crescent11Thu
12Fri4:175.54:326.99:551.311:101.06:228:06First Quarter12Fri
13Sat5:325.05:247.010:481.96:238:04First Quarter13Sat
14Sun6:564.86:247.012:240.811:54 AM2.56:238:03First Quarter14Sun
15Mon8:194.97:297.11:390.51:102.86:248:02First Quarter15Mon
16Tue9:305.28:347.12:480.12:242.86:258:01Waxing Gibbous16Tue
17Wed10:285.59:357.23:48-0.23:302.66:267:59Waxing Gibbous17Wed
18Thu11:185.810:307.24:39-0.44:282.46:277:58Waxing Gibbous18Thu
19Fri12:016.05:25-0.55:202.16:287:57Full Moon19Fri
20Sat12:416.26:06-0.46:091.86:297:55Full Moon20Sat
21Sun12:106.91:176.36:44-0.26:541.66:297:54Full Moon21Sun
22Mon12:566.71:516.37:190.27:371.56:307:53Full Moon22Mon
23Tue1:416.32:236.37:530.68:191.46:317:51Waning Gibbous23Tue
24Wed2:265.92:536.38:261.09:021.46:327:50Waning Gibbous24Wed
25Thu3:125.53:236.39:001.59:461.46:337:49Waning Gibbous25Thu
26Fri4:045.13:576.29:372.010:361.46:347:47Waning Gibbous26Fri
27Sat5:044.84:366.110:212.511:351.46:357:46Third Quarter27Sat
28Sun6:174.55:246.111:162.96:357:44Third Quarter28Sun
29Mon7:344.56:226.012:411.412:253.16:367:43Third Quarter29Mon
30Tue8:444.77:246.11:481.21:353.26:377:41Third Quarter30Tue
31Wed9:394.98:246.22:460.92:373.06:387:40Waning Crescent31Wed
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 12:26 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 spring phase. Tonight's moon is 15% 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 Waxing Crescent (15% 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