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

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Santa Ana River entrance (inside), CA.
Next low tide : in 4h 40m at 8:43 am (0.4 ft)
Next high tide : 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 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:442.87:421.91:59-0.16:205:48Waning Crescent1Tue
2Wed5:572.98:102.11:170.52:47-0.26:185:49Waning Crescent2Wed
3Thu6:533.08:352.22:170.43:25-0.26:175:50Waning Crescent3Thu
4Fri7:373.18:582.33:010.43:57-0.26:165:50Waning Crescent4Fri
5Sat8:153.19:192.43:380.34:25-0.26:155:51New Moon5Sat
6Sun8:493.09:402.54:120.24:49-0.16:135:52New Moon6Sun
7Mon9:212.810:002.64:440.25:110.06:125:53New Moon7Mon
8Tue9:532.610:202.65:160.15:310.06:115:54New Moon8Tue
9Wed10:252.410:402.65:500.15:490.16:095:54Waxing Crescent9Wed
10Thu10:592.111:012.66:250.16:050.26:085:55Waxing Crescent10Thu
11Fri11:371.811:252.67:050.26:180.36:075:56Waxing Crescent11Fri
12Sat12:281.57:540.26:220.46:055:57Waxing Crescent12Sat
13Sun2:251.29:040.25:380.56:045:58First Quarter13Sun
14Mon12:332.410:580.26:035:58First Quarter14Mon
15Tue1:482.312:400.16:015:59First Quarter15Tue
16Wed3:422.47:481.81:350.06:006:00First Quarter16Wed
17Thu5:072.67:461.912:320.62:13-0.15:596:01Waxing Gibbous17Thu
18Fri6:062.87:582.11:330.52:45-0.15:576:01Waxing Gibbous18Fri
19Sat6:543.08:162.32:190.43:15-0.25:566:02Waxing Gibbous19Sat
20Sun7:403.18:392.63:020.23:45-0.25:556:03Waxing Gibbous20Sun
21Mon8:253.29:062.93:450.14:15-0.15:536:04Full Moon21Mon
22Tue9:103.09:353.14:290.04:45-0.15:526:04Full Moon22Tue
23Wed9:582.810:073.25:16-0.15:160.05:516:05Full Moon23Wed
24Thu10:502.410:433.36:06-0.15:480.15:496:06Waning Gibbous24Thu
25Fri11:492.011:233.27:01-0.16:200.35:486:07Waning Gibbous25Fri
26Sat1:061.78:05-0.16:530.45:476:07Waning Gibbous26Sat
27Sun12:113.03:081.59:240.07:340.55:456:08Third Quarter27Sun
28Mon1:152.85:421.710:590.09:280.65:446:09Third Quarter28Mon
29Tue2:502.66:341.912:260.05:436:10Third Quarter29Tue
30Wed4:312.57:062.112:050.61:28-0.15:416:10Third Quarter30Wed
31Thu5:452.67:322.31:250.52:14-0.15:406:11Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410599)

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

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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 11:27 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 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