Tides Today & Tomorrow in Santa Ana River entrance (inside), CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Santa Ana River entrance (inside), CA.
Next low tide : 11:05 pm (0.3 ft)
Next high tide : in 4h 15m at 2:11 pm (2.7 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 6:16 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9410599
Common Questions About Tides

Santa Ana River entrance (inside), CA Tides - Mar 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:163.19:582.84:330.15:09-0.16:185:49New Moon1Fri
2Sat9:583.010:332.95:160.15:42-0.16:175:49New Moon2Sat
3Sun10:442.711:112.96:030.06:170.06:165:50Waxing Crescent3Sun
4Mon11:362.411:542.96:560.06:550.16:145:51Waxing Crescent4Mon
5Tue12:382.07:570.17:380.26:135:52Waxing Crescent5Tue
6Wed12:452.82:041.79:130.18:330.36:125:53First Quarter6Wed
7Thu1:502.74:001.610:450.19:560.46:115:53First Quarter7Thu
8Fri3:112.75:401.812:140.06:095:54First Quarter8Fri
9Sat4:342.76:402.01:230.06:085:55Waxing Gibbous9Sat
10Sun6:452.88:232.21:040.43:15-0.17:076:56Waxing Gibbous10Sun
11Mon7:412.98:582.43:040.33:57-0.17:056:57Waxing Gibbous11Mon
12Tue8:293.09:292.53:520.24:33-0.17:046:57Waxing Gibbous12Tue
13Wed9:103.09:572.64:330.25:05-0.17:036:58Full Moon13Wed
14Thu9:482.910:242.75:100.15:340.07:016:59Full Moon14Thu
15Fri10:242.810:492.75:460.16:000.07:007:00Full Moon15Fri
16Sat10:582.611:152.76:200.16:260.16:597:00Full Moon16Sat
17Sun11:332.411:402.76:550.16:500.26:577:01Waning Gibbous17Sun
18Mon12:102.17:320.17:140.26:567:02Waning Gibbous18Mon
19Tue12:072.612:521.98:130.17:370.36:557:03Waning Gibbous19Tue
20Wed12:372.51:461.69:030.28:010.46:537:04Waning Gibbous20Wed
21Thu1:142.43:141.510:090.28:290.56:527:04Third Quarter21Thu
22Fri2:052.25:521.511:400.29:350.56:517:05Third Quarter22Fri
23Sat3:272.17:081.71:060.26:497:06Third Quarter23Sat
24Sun5:032.27:361.812:150.62:040.16:487:07Third Quarter24Sun
25Mon6:152.37:592.01:440.52:470.16:477:07Waning Crescent25Mon
26Tue7:092.58:232.32:370.43:220.06:457:08Waning Crescent26Tue
27Wed7:552.78:492.53:190.33:550.06:447:09Waning Crescent27Wed
28Thu8:392.89:172.74:000.24:27-0.16:437:10Waning Crescent28Thu
29Fri9:232.99:483.04:410.15:00-0.16:417:10New Moon29Fri
30Sat10:072.910:223.15:230.05:350.06:407:11New Moon30Sat
31Sun10:542.710:583.26:07-0.16:100.06:397:12New Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410599)

Common Questions About Santa Ana River entrance (inside), CA Tides

Show All
What time does the tide turn (slack tide) in Santa Ana River entrance (inside), CA today?

Slack tide in Santa Ana River entrance (inside), CA is approximately 6:38 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 Santa Ana River entrance (inside), CA?

Santa Ana River entrance (inside), 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 Santa Ana River entrance (inside), 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 Santa Ana River entrance (inside), CA?

Tide predictions for Santa Ana River entrance (inside), 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 Santa Ana River entrance (inside), CA?

Tide data for Santa Ana River entrance (inside), CA is sourced from NOAA Station #9410599. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410599.

What is the moon phase in Santa Ana River entrance (inside), CA tonight?

Tonight the moon over Santa Ana River entrance (inside), CA is First Quarter (37% illuminated). This places Santa Ana River entrance (inside), 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