Tides Today & Tomorrow in King Harbor, Santa Monica Bay, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in King Harbor, Santa Monica Bay, CA.
Next low tide : 9:25 pm (1.5 ft)
Next high tide : in 2h 36m at 1:56 pm (4.8 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 6:17 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9410738
Common Questions About Tides

King Harbor, Santa Monica Bay, CA Tides - Mar 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:084.65:222.810:410.79:412.37:216:50First Quarter1Wed
2Thu4:244.57:093.112:100.47:206:51First Quarter2Thu
3Fri5:404.58:063.41:140.17:196:51First Quarter3Fri
4Sat6:434.78:433.612:412.42:00-0.27:186:52Waxing Gibbous4Sat
5Sun7:324.89:113.81:342.22:37-0.37:166:53Waxing Gibbous5Sun
6Mon8:115.09:343.92:131.93:07-0.47:156:54Waxing Gibbous6Mon
7Tue8:455.19:554.02:461.63:33-0.47:146:55Waxing Gibbous7Tue
8Wed9:175.110:154.13:161.43:57-0.37:126:55Full Moon8Wed
9Thu9:475.110:374.33:451.14:20-0.27:116:56Full Moon9Thu
10Fri10:184.910:594.44:161.04:430.07:106:57Full Moon10Fri
11Sat10:494.711:224.44:480.95:060.37:086:58Full Moon11Sat
12Sun11:234.311:474.55:230.85:290.67:076:59Waning Gibbous12Sun
13Mon12:003.86:020.95:521.07:066:59Waning Gibbous13Mon
14Tue12:154.412:463.36:490.96:161.57:047:00Waning Gibbous14Tue
15Wed12:484.41:522.97:501.06:441.97:037:01Waning Gibbous15Wed
16Thu1:334.33:482.59:140.97:242.37:027:02Third Quarter16Thu
17Fri2:394.36:142.710:520.79:092.77:007:02Third Quarter17Fri
18Sat4:104.47:143.112:080.26:597:03Third Quarter18Sat
19Sun5:344.77:493.51:03-0.46:587:04Waning Crescent19Sun
20Mon6:405.18:214.012:342.21:48-0.86:567:05Waning Crescent20Mon
21Tue7:365.58:524.41:311.62:28-1.16:557:06Waning Crescent21Tue
22Wed8:275.89:254.82:201.03:06-1.26:547:06Waning Crescent22Wed
23Thu9:155.89:595.23:070.43:43-1.16:527:07New Moon23Thu
24Fri10:025.610:335.43:530.04:20-0.76:517:08New Moon24Fri
25Sat10:505.211:095.54:40-0.34:56-0.26:507:09New Moon25Sat
26Sun11:394.711:475.45:29-0.45:320.46:487:09Waxing Crescent26Sun
27Mon12:344.06:21-0.26:091.06:477:10Waxing Crescent27Mon
28Tue12:275.21:403.47:200.06:481.76:457:11Waxing Crescent28Tue
29Wed1:124.83:153.08:300.37:392.36:447:12First Quarter29Wed
30Thu2:084.45:263.09:580.59:102.86:437:12First Quarter30Thu
31Fri3:274.16:563.311:270.411:162.86:417:13First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410738)

Common Questions About King Harbor, Santa Monica Bay, CA Tides

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What time does the tide turn (slack tide) in King Harbor, Santa Monica Bay, CA today?

Slack tide in King Harbor, Santa Monica Bay, CA is approximately 5:40 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 King Harbor, Santa Monica Bay, CA?

King Harbor, Santa Monica Bay, 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 King Harbor, Santa Monica Bay, 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 King Harbor, Santa Monica Bay, CA?

Tide predictions for King Harbor, Santa Monica Bay, 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 King Harbor, Santa Monica Bay, CA?

Tide data for King Harbor, Santa Monica Bay, CA is sourced from NOAA Station #9410738. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410738.

What is the moon phase in King Harbor, Santa Monica Bay, CA tonight?

Tonight the moon over King Harbor, Santa Monica Bay, CA is First Quarter (37% illuminated). This places King Harbor, Santa Monica Bay, 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