Tides Today & Tomorrow in Imperial Beach, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Imperial Beach, CA.
Next low tide : in 8m at 6:50 am (1.9 ft)
Next high tide : 1:45 pm (4.8 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:14 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9410120
Common Questions About Tides

Imperial Beach, CA Tides - Jul 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:054.02:454.67:430.79:032.04:447:00First Quarter1Tue
2Wed2:333.63:425.08:421.110:271.44:447:00First Quarter2Wed
3Thu4:073.44:365.49:451.311:340.64:456:59First Quarter3Thu
4Fri5:283.55:265.910:451.54:456:59Waxing Gibbous4Fri
5Sat6:353.76:156.312:30-0.111:42 AM1.64:466:59Waxing Gibbous5Sat
6Sun7:323.97:026.61:20-0.712:361.64:466:59Waxing Gibbous6Sun
7Mon8:214.27:486.72:06-1.11:261.54:476:59Full Moon7Mon
8Tue9:074.38:326.72:50-1.32:151.54:476:59Full Moon8Tue
9Wed9:514.49:156.43:32-1.23:011.64:486:59Full Moon9Wed
10Thu10:354.49:586.04:13-1.03:481.74:486:58Waning Gibbous10Thu
11Fri11:204.410:425.54:53-0.74:361.84:496:58Waning Gibbous11Fri
12Sat12:054.45:33-0.25:282.04:496:58Waning Gibbous12Sat
13Sun12:524.46:120.36:272.24:506:57Waning Gibbous13Sun
14Mon12:174.21:434.36:520.87:402.34:506:57Third Quarter14Mon
15Tue1:183.62:384.47:361.39:142.24:516:57Third Quarter15Tue
16Wed2:413.23:354.58:291.810:431.84:526:56Third Quarter16Wed
17Thu4:203.04:274.79:302.111:451.34:526:56Third Quarter17Thu
18Fri5:433.15:135.010:282.24:536:55Waning Crescent18Fri
19Sat6:433.35:535.212:300.911:20 AM2.34:546:55Waning Crescent19Sat
20Sun7:253.56:315.51:070.512:062.24:546:54Waning Crescent20Sun
21Mon7:593.77:085.81:400.112:482.14:556:54Waning Crescent21Mon
22Tue8:303.97:436.02:12-0.21:272.04:556:53New Moon22Tue
23Wed9:024.08:176.12:43-0.42:051.94:566:53New Moon23Wed
24Thu9:354.28:536.13:15-0.52:431.84:576:52New Moon24Thu
25Fri10:094.39:305.93:48-0.53:231.74:576:51New Moon25Fri
26Sat10:464.410:105.64:22-0.44:071.74:586:51Waxing Crescent26Sat
27Sun11:254.610:555.24:57-0.24:571.84:596:50Waxing Crescent27Sun
28Mon12:094.75:340.25:571.84:596:49Waxing Crescent28Mon
29Tue12:594.86:140.77:111.85:006:49First Quarter29Tue
30Wed12:564.01:574.97:021.28:421.65:016:48First Quarter30Wed
31Thu2:253.53:035.18:021.610:131.15:016:47First Quarter31Thu
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 10:17 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 Imperial Beach, CA?

Imperial Beach, 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 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 (37% illuminated). This places Imperial Beach, 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