Tides Today & Tomorrow in Oakland – Middle Harbor, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Oakland - Middle Harbor, CA.
Next low tide : 10:10 am (2.2 ft)
Next high tide : in 4h 24m at 4:53 am (4.5 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9414777
Common Questions About Tides

Oakland – Middle Harbor, CA Tides - Mar 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:376.710:525.12:472.93:49-1.06:416:02Waxing Gibbous1Sun
2Mon9:346.911:245.43:392.44:33-1.16:406:03Waxing Gibbous2Mon
3Tue10:297.011:575.74:291.85:13-1.16:386:04Full Moon3Tue
4Wed11:236.85:191.35:52-0.86:376:05Full Moon4Wed
5Thu12:296.112:176.56:090.86:31-0.36:366:06Full Moon5Thu
6Fri1:036.41:145.97:010.47:100.46:346:07Waning Gibbous6Fri
7Sat1:386.62:155.37:560.17:501.16:336:08Waning Gibbous7Sat
8Sun2:166.63:244.78:530.08:341.96:316:09Waning Gibbous8Sun
9Mon2:576.54:494.39:570.09:272.66:306:10Third Quarter9Mon
10Tue3:466.36:314.311:100.110:423.06:286:11Third Quarter10Tue
11Wed4:456.08:034.512:260.16:276:12Third Quarter11Wed
12Thu5:565.89:044.812:193.21:380.16:256:12Third Quarter12Thu
13Fri7:085.79:485.01:403.12:370.06:246:13Waning Crescent13Fri
14Sat8:115.710:235.12:412.83:24-0.16:226:14Waning Crescent14Sat
15Sun9:045.710:535.23:292.44:02-0.16:216:15Waning Crescent15Sun
16Mon9:505.711:185.24:092.14:350.06:196:16Waning Crescent16Mon
17Tue10:325.711:395.34:451.85:030.16:186:17New Moon17Tue
18Wed11:115.511:595.45:181.55:300.36:166:18New Moon18Wed
19Thu11:505.35:501.25:550.76:156:19New Moon19Thu
20Fri12:195.612:305.16:220.96:201.06:136:20New Moon20Fri
21Sat12:405.71:134.86:550.76:461.56:126:21Waxing Crescent21Sat
22Sun1:035.82:004.57:310.57:141.96:106:22Waxing Crescent22Sun
23Mon1:295.92:564.28:110.47:442.46:096:23Waxing Crescent23Mon
24Tue2:005.94:094.08:590.38:212.86:076:24Waxing Crescent24Tue
25Wed2:395.85:453.99:580.29:143.26:066:25First Quarter25Wed
26Thu3:325.77:234.111:100.210:453.46:046:26First Quarter26Thu
27Fri4:415.68:224.412:260.06:026:26First Quarter27Fri
28Sat6:015.79:014.712:273.31:32-0.36:016:27First Quarter28Sat
29Sun7:175.99:355.01:412.82:28-0.65:596:28Waxing Gibbous29Sun
30Mon8:256.110:065.42:392.23:15-0.65:586:29Waxing Gibbous30Mon
31Tue9:266.210:385.83:301.53:58-0.55:566:30Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414777)

Common Questions About Oakland - Middle Harbor, CA Tides

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What time does the tide turn (slack tide) in Oakland - Middle Harbor, CA today?

Slack tide in Oakland - Middle Harbor, CA is approximately 7:31 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 Oakland - Middle Harbor, CA?

Oakland - Middle Harbor, CA is currently in a transitional phase. Tonight's moon is 37% 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 Oakland - Middle Harbor, 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 Oakland - Middle Harbor, CA?

Tide predictions for Oakland - Middle Harbor, 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 Oakland - Middle Harbor, CA?

Tide data for Oakland - Middle Harbor, CA is sourced from NOAA Station #9414777. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414777.

What is the moon phase in Oakland - Middle Harbor, CA tonight?

Tonight the moon over Oakland - Middle Harbor, CA is First Quarter (37% illuminated). This places Oakland - Middle Harbor, 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