Tides Today & Tomorrow in Berkeley, CA

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Berkeley, CA.
Next low tide : in 36m at 1:57 am (1.0 ft)
Next high tide : 9:10 am (4.2 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:30 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9414816
Common Questions About Tides

Berkeley, CA Tides - Sep 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:555.96:21-0.26:361.55:396:39Full Moon1Sat
2Sun12:386.01:266.06:570.37:251.15:406:37Waning Gibbous2Sun
3Mon1:325.72:006.27:340.98:190.85:406:36Waning Gibbous3Mon
4Tue2:335.22:376.38:151.59:190.65:416:34Waning Gibbous4Tue
5Wed3:454.83:216.49:012.210:260.45:426:33Third Quarter5Wed
6Thu5:124.54:146.39:552.811:380.25:436:31Third Quarter6Thu
7Fri6:454.55:206.311:013.25:446:30Third Quarter7Fri
8Sat8:034.76:346.312:520.012:193.45:456:28Waning Crescent8Sat
9Sun9:025.07:456.41:59-0.21:393.35:456:26Waning Crescent9Sun
10Mon9:505.38:476.52:57-0.42:482.95:466:25Waning Crescent10Mon
11Tue10:315.59:436.53:47-0.53:452.55:476:23Waning Crescent11Tue
12Wed11:095.710:336.44:31-0.54:342.15:486:22New Moon12Wed
13Thu11:435.811:216.25:10-0.35:191.75:496:20New Moon13Thu
14Fri12:165.85:450.16:001.45:506:19New Moon14Fri
15Sat12:075.912:465.86:170.56:401.25:516:17New Moon15Sat
16Sun12:525.51:145.86:481.17:201.15:516:16Waxing Crescent16Sun
17Mon1:395.21:405.77:191.68:021.15:526:14Waxing Crescent17Mon
18Tue2:294.82:075.67:512.28:471.15:536:12Waxing Crescent18Tue
19Wed3:274.52:355.58:262.79:391.25:546:11Waxing Crescent19Wed
20Thu4:394.33:115.39:083.210:381.25:556:09First Quarter20Thu
21Fri6:054.24:005.210:033.511:431.15:566:08First Quarter21Fri
22Sat7:234.35:075.111:143.75:576:06First Quarter22Sat
23Sun8:194.66:235.212:480.912:313.65:576:05First Quarter23Sun
24Mon9:004.87:305.41:450.61:393.35:586:03Waxing Gibbous24Mon
25Tue9:345.18:265.62:330.32:352.95:596:02Waxing Gibbous25Tue
26Wed10:045.39:175.93:150.13:222.46:006:00Waxing Gibbous26Wed
27Thu10:335.610:066.03:540.04:061.86:015:58Waxing Gibbous27Thu
28Fri11:025.910:566.14:310.04:501.26:025:57Full Moon28Fri
29Sat11:316.211:476.05:080.25:340.66:035:55Full Moon29Sat
30Sun12:026.45:460.66:200.16:045:54Full Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414816)

Common Questions About Berkeley, CA Tides

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What time does the tide turn (slack tide) in Berkeley, CA today?

Slack tide in Berkeley, CA is approximately 5:33 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 Berkeley, CA?

Berkeley, CA is currently in a transitional phase. Tonight's moon is 66% 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 Berkeley, 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 Berkeley, CA?

Tide predictions for Berkeley, 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 Berkeley, CA?

Tide data for Berkeley, CA is sourced from NOAA Station #9414816. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414816.

What is the moon phase in Berkeley, CA tonight?

Tonight the moon over Berkeley, CA is First Quarter (66% illuminated). This places Berkeley, 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