Tides Today & Tomorrow in Oceanside, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Oceanside, CA.
Next low tide : in 9m at 6:59 am (2.6 ft)
Next high tide : 2:34 pm (4.8 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:15 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9410230
Common Questions About Tides

Oceanside, CA Tides - Sep 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:373.96:185.712:490.112:072.76:237:15Waning Crescent1Sat
2Sun8:194.27:125.91:39-0.21:082.46:247:13Waning Crescent2Sun
3Mon8:534.47:586.12:21-0.41:552.16:257:12Waning Crescent3Mon
4Tue9:224.68:386.12:57-0.42:351.86:257:11New Moon4Tue
5Wed9:484.79:146.03:28-0.33:111.66:267:10New Moon5Wed
6Thu10:134.89:485.83:56-0.13:451.46:277:08New Moon6Thu
7Fri10:374.810:215.44:220.24:191.36:277:07New Moon7Fri
8Sat11:004.810:545.04:460.54:531.36:287:05Waxing Crescent8Sat
9Sun11:254.811:294.55:090.95:311.46:297:04Waxing Crescent9Sun
10Mon11:504.85:311.46:131.56:297:03Waxing Crescent10Mon
11Tue12:094.012:184.75:521.87:051.66:307:01Waxing Crescent11Tue
12Wed12:593.512:524.66:112.28:181.76:307:00First Quarter12Wed
13Thu2:273.01:404.56:272.610:011.66:316:59First Quarter13Thu
14Fri2:594.411:321.36:326:57First Quarter14Fri
15Sat7:273.34:324.69:493.36:326:56First Quarter15Sat
16Sun7:373.65:434.912:290.811:39 AM3.16:336:55Waxing Gibbous16Sun
17Mon7:553.96:375.41:100.412:352.76:346:53Waxing Gibbous17Mon
18Tue8:164.37:235.81:450.01:192.26:346:52Waxing Gibbous18Tue
19Wed8:404.68:076.12:19-0.32:001.76:356:51Waxing Gibbous19Wed
20Thu9:085.08:506.22:51-0.52:421.16:366:49Full Moon20Thu
21Fri9:375.39:346.13:24-0.43:250.76:366:48Full Moon21Fri
22Sat10:095.610:205.83:58-0.24:110.46:376:46Full Moon22Sat
23Sun10:445.911:105.24:320.25:010.26:386:45Waning Gibbous23Sun
24Mon11:225.95:070.75:560.26:386:44Waning Gibbous24Mon
25Tue12:074.612:055.85:451.47:000.36:396:42Waning Gibbous25Tue
26Wed1:183.912:555.66:272.08:190.56:406:41Third Quarter26Wed
27Thu3:013.52:005.37:232.69:520.56:406:40Third Quarter27Thu
28Fri5:103.53:255.19:023.011:190.36:416:38Third Quarter28Fri
29Sat6:333.94:555.111:003.06:426:37Third Quarter29Sat
30Sun6:204.25:075.212:240.111:19 AM2.65:435:36Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410230)

Common Questions About Oceanside, CA Tides

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

Slack tide in Oceanside, CA is approximately 10:46 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 Oceanside, CA?

Oceanside, CA is currently in a neap phase. Tonight's moon is 47% 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 Oceanside, 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 Oceanside, CA?

Tide predictions for Oceanside, 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 Oceanside, CA?

Tide data for Oceanside, CA is sourced from NOAA Station #9410230. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410230.

What is the moon phase in Oceanside, CA tonight?

Tonight the moon over Oceanside, CA is First Quarter (47% illuminated). This places Oceanside, 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