Tides Today & Tomorrow in Imperial Beach, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Imperial Beach, CA.
Next low tide (tomorrow) : 12:21 am (1.1 ft)
Next high tide : in 10h 22m at 3:55 pm (4.5 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:15 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9410120
Common Questions About Tides

Imperial Beach, CA Tides - May 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:294.57:345.91:26-0.31:150.45:026:29Waxing Gibbous1Mon
2Tue8:174.48:096.02:10-0.71:520.75:016:30Full Moon2Tue
3Wed9:024.38:446.02:52-0.92:271.05:006:30Full Moon3Wed
4Thu9:474.19:185.83:33-0.93:021.34:596:31Full Moon4Thu
5Fri10:343.89:535.54:14-0.83:361.64:586:32Waning Gibbous5Fri
6Sat11:243.610:305.14:57-0.54:122.04:576:32Waning Gibbous6Sat
7Sun12:193.45:43-0.24:532.34:566:33Waning Gibbous7Sun
8Mon1:233.26:320.25:462.64:556:34Waning Gibbous8Mon
9Tue2:393.37:280.57:052.84:546:35Third Quarter9Tue
10Wed1:023.83:513.58:320.88:562.74:536:35Third Quarter10Wed
11Thu2:293.54:393.89:350.910:282.34:536:36Third Quarter11Thu
12Fri3:553.45:144.110:261.011:241.84:526:37Third Quarter12Fri
13Sat5:033.55:444.511:071.04:516:37Waning Crescent13Sat
14Sun5:573.66:134.812:071.311:44 AM1.14:506:38Waning Crescent14Sun
15Mon6:443.76:425.212:450.712:181.14:506:39Waning Crescent15Mon
16Tue7:273.87:125.51:220.212:521.24:496:40Waning Crescent16Tue
17Wed8:083.97:435.81:58-0.31:261.34:486:40New Moon17Wed
18Thu8:503.98:176.02:36-0.72:001.44:486:41New Moon18Thu
19Fri9:333.98:536.13:15-0.92:371.54:476:42New Moon19Fri
20Sat10:203.89:326.03:57-1.03:161.74:466:42New Moon20Sat
21Sun11:123.710:175.84:43-1.04:001.94:466:43Waxing Crescent21Sun
22Mon12:103.75:32-0.84:552.14:456:44Waxing Crescent22Mon
23Tue1:123.76:25-0.56:062.34:456:44Waxing Crescent23Tue
24Wed12:104.92:193.97:23-0.27:342.34:446:45First Quarter24Wed
25Thu1:244.43:244.38:260.19:142.04:446:46First Quarter25Thu
26Fri2:514.04:194.79:290.410:371.44:436:46First Quarter26Fri
27Sat4:163.85:075.110:250.611:420.84:436:47Waxing Gibbous27Sat
28Sun5:303.85:505.511:150.94:436:48Waxing Gibbous28Sun
29Mon6:333.86:305.912:360.112:011.14:426:48Waxing Gibbous29Mon
30Tue7:283.97:096.11:23-0.412:441.34:426:49Waxing Gibbous30Tue
31Wed8:163.97:466.12:05-0.71:241.44:426:49Full Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410120)

Common Questions About Imperial Beach, CA Tides

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

Slack tide in Imperial Beach, CA is approximately 8:08 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 Imperial Beach, CA?

Imperial Beach, CA is currently in a neap phase. Tonight's moon is 56% 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 Imperial Beach, 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 Imperial Beach, CA?

Tide predictions for Imperial Beach, 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 Imperial Beach, CA?

Tide data for Imperial Beach, CA is sourced from NOAA Station #9410120. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410120.

What is the moon phase in Imperial Beach, CA tonight?

Tonight the moon over Imperial Beach, CA is First Quarter (56% illuminated). This places Imperial Beach, 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