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 3h 37m 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 - Apr 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:234.59:215.63:15-0.43:070.55:366:08New Moon1Fri
2Sat10:074.29:565.63:57-0.53:380.95:356:08Waxing Crescent2Sat
3Sun10:583.810:365.54:45-0.54:111.35:346:09Waxing Crescent3Sun
4Mon12:003.35:39-0.34:511.75:336:10Waxing Crescent4Mon
5Tue1:193.06:45-0.15:452.15:316:10Waxing Crescent5Tue
6Wed12:274.93:003.08:040.17:182.55:306:11First Quarter6Wed
7Thu1:494.64:303.49:300.19:202.45:296:12First Quarter7Thu
8Fri3:244.55:253.810:40-0.110:491.95:276:13First Quarter8Fri
9Sat4:434.66:064.311:34-0.211:511.35:266:13Waxing Gibbous9Sat
10Sun5:474.76:424.812:18-0.25:256:14Waxing Gibbous10Sun
11Mon6:414.87:145.212:420.612:56-0.15:246:15Waxing Gibbous11Mon
12Tue7:284.87:465.41:260.11:300.15:226:15Waxing Gibbous12Tue
13Wed8:114.68:165.62:07-0.32:010.45:216:16Full Moon13Wed
14Thu8:514.48:455.62:45-0.52:310.75:206:17Full Moon14Thu
15Fri9:304.19:145.53:22-0.52:591.05:196:17Full Moon15Fri
16Sat10:113.89:435.33:59-0.43:261.45:186:18Waning Gibbous16Sat
17Sun10:543.510:135.14:37-0.23:521.75:166:19Waning Gibbous17Sun
18Mon11:443.210:444.75:190.04:192.05:156:20Waning Gibbous18Mon
19Tue12:442.96:070.44:492.45:146:20Waning Gibbous19Tue
20Wed2:052.87:050.65:342.75:136:21Third Quarter20Wed
21Thu12:154.03:533.08:170.87:272.95:126:22Third Quarter21Thu
22Fri1:413.74:513.39:320.99:402.75:116:22Third Quarter22Fri
23Sat3:223.65:223.610:290.810:542.25:106:23Third Quarter23Sat
24Sun4:363.75:494.011:120.711:431.65:096:24Third Quarter24Sun
25Mon5:333.96:154.511:480.65:076:25Waning Crescent25Mon
26Tue6:214.16:434.912:241.012:220.65:066:25Waning Crescent26Tue
27Wed7:064.27:125.41:040.412:550.65:056:26Waning Crescent27Wed
28Thu7:504.37:435.81:43-0.21:280.75:046:27New Moon28Thu
29Fri8:344.38:176.02:23-0.72:020.95:036:28New Moon29Fri
30Sat9:204.28:546.23:05-1.02:381.15:026:28New Moon30Sat
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