Tides Today & Tomorrow in Santa Monica, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Santa Monica, CA.
Next low tide : in 4h 37m at 6:58 am (2.0 ft)
Next high tide : 1:54 pm (5.0 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 6:18 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9410840
Common Questions About Tides

Santa Monica, CA Tides - Apr 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:365.42:093.37:40-0.27:011.86:407:14Waxing Crescent1Sat
2Sun1:325.13:533.19:000.08:132.36:397:15First Quarter2Sun
3Mon2:464.85:363.310:330.010:132.56:377:16First Quarter3Mon
4Tue4:164.66:443.711:49-0.211:512.26:367:17First Quarter4Tue
5Wed5:394.77:304.112:48-0.36:357:17Waxing Gibbous5Wed
6Thu6:464.88:064.512:571.71:35-0.46:337:18Waxing Gibbous6Thu
7Fri7:414.98:364.81:481.22:14-0.46:327:19Waxing Gibbous7Fri
8Sat8:264.99:045.02:300.72:47-0.26:317:20Waxing Gibbous8Sat
9Sun9:064.89:305.13:070.43:160.06:297:21Full Moon9Sun
10Mon9:434.79:545.23:420.13:430.36:287:21Full Moon10Mon
11Tue10:194.410:195.24:160.04:080.76:277:22Full Moon11Tue
12Wed10:564.110:435.14:51-0.14:321.06:257:23Full Moon12Wed
13Thu11:353.811:095.05:260.04:571.46:247:24Waning Gibbous13Thu
14Fri12:193.46:040.15:211.86:237:24Waning Gibbous14Fri
15Sat1:133.16:470.35:462.16:227:25Waning Gibbous15Sat
16Sun12:084.52:282.87:380.56:132.46:207:26Waning Gibbous16Sun
17Mon12:474.24:332.88:460.76:552.86:197:27Third Quarter17Mon
18Tue1:463.96:043.110:120.79:252.96:187:27Third Quarter18Tue
19Wed3:243.86:403.411:220.611:302.76:177:28Third Quarter19Wed
20Thu4:573.97:053.812:120.46:167:29Third Quarter20Thu
21Fri6:054.17:284.212:272.112:530.26:157:30Waning Crescent21Fri
22Sat7:004.47:544.61:111.51:290.06:137:30Waning Crescent22Sat
23Sun7:494.68:215.11:520.92:030.06:127:31Waning Crescent23Sun
24Mon8:354.88:515.62:330.22:370.16:117:32Waning Crescent24Mon
25Tue9:214.89:246.03:14-0.43:120.26:107:33New Moon25Tue
26Wed10:084.710:006.23:58-0.83:480.56:097:34New Moon26Wed
27Thu11:004.410:396.24:45-1.14:270.96:087:34New Moon27Thu
28Fri11:574.111:236.15:36-1.25:081.36:077:35Waxing Crescent28Fri
29Sat1:013.86:30-1.15:561.76:067:36Waxing Crescent29Sat
30Sun12:125.72:173.57:31-0.86:542.26:057:37Waxing Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410840)

Common Questions About Santa Monica, CA Tides

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

Slack tide in Santa Monica, CA is approximately 10:26 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 Monica, CA?

Santa Monica, 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 Monica, 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 Monica, CA?

Tide predictions for Santa Monica, 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 Monica, CA?

Tide data for Santa Monica, CA is sourced from NOAA Station #9410840. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410840.

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

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