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 12h 32m 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 - Sep 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:075.010:134.63:520.84:121.25:226:14Waning Gibbous1Fri
2Sat10:345.010:514.24:151.24:521.35:236:13Waning Gibbous2Sat
3Sun11:054.911:393.74:391.65:411.45:246:11Waning Gibbous3Sun
4Mon11:434.85:032.06:451.65:246:10Waning Gibbous4Mon
5Tue12:493.212:374.75:332.38:151.55:256:09Third Quarter5Tue
6Wed2:433.01:554.76:292.79:511.25:266:07Third Quarter6Wed
7Thu4:393.23:264.98:432.910:590.75:266:06Third Quarter7Thu
8Fri5:393.64:395.310:222.711:500.25:276:05Waning Crescent8Fri
9Sat6:194.15:385.711:272.25:286:04Waning Crescent9Sat
10Sun6:544.66:306.112:33-0.212:211.65:286:02Waning Crescent10Sun
11Mon7:295.17:196.31:13-0.41:101.05:296:01Waning Crescent11Mon
12Tue8:055.58:066.31:51-0.51:570.55:296:00New Moon12Tue
13Wed8:415.98:536.12:28-0.42:440.15:305:58New Moon13Wed
14Thu9:186.19:405.63:04-0.13:320.05:315:57New Moon14Thu
15Fri9:576.110:305.13:410.44:210.05:315:55Waxing Crescent15Fri
16Sat10:385.911:264.44:180.95:150.25:325:54Waxing Crescent16Sat
17Sun11:245.64:571.56:160.65:335:53Waxing Crescent17Sun
18Mon12:313.812:175.25:412.17:290.95:335:51First Quarter18Mon
19Tue1:583.51:244.86:402.79:021.05:345:50First Quarter19Tue
20Wed3:593.42:514.68:193.010:271.05:345:49First Quarter20Wed
21Thu5:243.74:154.610:132.911:260.85:355:47First Quarter21Thu
22Fri6:084.05:174.811:212.55:365:46Waxing Gibbous22Fri
23Sat6:384.36:045.012:090.612:062.25:365:45Waxing Gibbous23Sat
24Sun7:024.56:435.112:420.612:411.85:375:43Waxing Gibbous24Sun
25Mon7:244.87:185.21:100.61:131.45:385:42Waxing Gibbous25Mon
26Tue7:475.07:505.21:350.61:441.15:385:41Full Moon26Tue
27Wed8:105.28:225.12:000.72:150.85:395:39Full Moon27Wed
28Thu8:345.48:544.92:240.92:470.75:405:38Full Moon28Thu
29Fri8:585.59:274.62:481.13:200.65:405:37Full Moon29Fri
30Sat9:235.510:044.33:121.33:560.65:415:35Waning Gibbous30Sat
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