Tides Today & Tomorrow in Imperial Beach, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Imperial Beach, CA.
Next low tide : 8:58 pm (1.6 ft)
Next high tide : in 6h 19m at 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 - Jun 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:094.42:423.77:330.47:522.64:416:50First Quarter1Sun
2Mon1:254.03:394.18:330.59:302.24:416:51First Quarter2Mon
3Tue2:583.84:274.69:320.710:441.64:416:51First Quarter3Tue
4Wed4:223.75:105.110:270.811:440.84:406:52Waxing Gibbous4Wed
5Thu5:343.85:525.711:170.94:406:53Waxing Gibbous5Thu
6Fri6:374.06:356.212:370.012:051.04:406:53Waxing Gibbous6Fri
7Sat7:334.17:176.51:26-0.712:521.14:406:54Waxing Gibbous7Sat
8Sun8:264.28:016.72:13-1.21:391.24:406:54Full Moon8Sun
9Mon9:164.38:446.73:00-1.42:251.34:406:54Full Moon9Mon
10Tue10:074.29:296.53:46-1.53:121.54:406:55Full Moon10Tue
11Wed10:594.210:156.04:33-1.34:011.84:406:55Waning Gibbous11Wed
12Thu11:534.111:045.55:20-1.04:552.04:406:56Waning Gibbous12Thu
13Fri12:494.16:08-0.55:562.34:406:56Waning Gibbous13Fri
14Sat1:494.16:580.07:092.44:406:57Third Quarter14Sat
15Sun12:574.22:514.27:510.58:402.44:406:57Third Quarter15Sun
16Mon2:103.73:484.48:470.910:142.14:406:57Third Quarter16Mon
17Tue3:353.44:364.69:421.211:231.64:406:58Third Quarter17Tue
18Wed4:553.25:164.810:321.54:406:58Waning Crescent18Wed
19Thu6:013.35:525.112:131.111:15 AM1.74:406:58Waning Crescent19Thu
20Fri6:543.46:255.312:530.711:54 AM1.84:416:58Waning Crescent20Fri
21Sat7:373.56:575.51:270.312:311.94:416:59Waning Crescent21Sat
22Sun8:143.67:295.72:000.01:071.94:416:59New Moon22Sun
23Mon8:503.78:005.82:32-0.31:431.94:416:59New Moon23Mon
24Tue9:253.78:325.93:04-0.42:182.04:416:59New Moon24Tue
25Wed10:023.89:055.83:38-0.52:542.04:426:59New Moon25Wed
26Thu10:413.89:405.74:13-0.53:312.14:426:59Waxing Crescent26Thu
27Fri11:223.910:195.44:49-0.44:142.24:426:59Waxing Crescent27Fri
28Sat12:073.95:27-0.35:052.34:437:00Waxing Crescent28Sat
29Sun12:554.16:080.06:092.44:437:00Waxing Crescent29Sun
30Mon1:484.36:520.47:302.34:447:00First Quarter30Mon
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 5:21 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 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