Tides Today & Tomorrow in Oceanside, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Oceanside, CA.
Next low tide : 5:09 am (-0.3 ft)
Next high tide (tomorrow) : in 26m at 10:08 pm (6.0 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:01 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9410230
Common Questions About Tides

Oceanside, CA Tides - Sep 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:425.09:216.53:25-0.63:131.16:247:14New Moon1Fri
2Sat10:155.210:066.34:00-0.53:580.86:257:12New Moon2Sat
3Sun10:525.410:535.94:36-0.34:470.76:257:11Waxing Crescent3Sun
4Mon11:315.611:455.25:130.15:400.76:267:10Waxing Crescent4Mon
5Tue12:145.65:520.76:410.76:277:08Waxing Crescent5Tue
6Wed12:454.51:045.56:351.37:550.96:277:07Waxing Crescent6Wed
7Thu2:023.92:055.37:261.99:230.96:287:06First Quarter7Thu
8Fri3:493.53:205.28:372.410:550.76:297:04First Quarter8Fri
9Sat5:423.64:425.210:162.76:297:03First Quarter9Sat
10Sun6:563.95:545.412:090.411:46 AM2.66:307:02Waxing Gibbous10Sun
11Mon7:434.26:525.51:050.112:502.36:317:00Waxing Gibbous11Mon
12Tue8:184.57:385.61:490.01:372.06:316:59Waxing Gibbous12Tue
13Wed8:484.78:185.72:26-0.12:161.76:326:57Waxing Gibbous13Wed
14Thu9:144.88:535.62:570.02:501.46:336:56Full Moon14Thu
15Fri9:374.99:265.53:240.23:221.26:336:55Full Moon15Fri
16Sat10:005.09:575.33:500.43:531.16:346:53Full Moon16Sat
17Sun10:235.010:295.04:140.64:251.16:356:52Full Moon17Sun
18Mon10:475.011:034.64:371.04:581.16:356:51Waning Gibbous18Mon
19Tue11:125.011:394.25:001.35:361.16:366:49Waning Gibbous19Tue
20Wed11:404.95:231.76:191.36:376:48Waning Gibbous20Wed
21Thu12:233.712:124.85:462.17:141.46:376:46Waning Gibbous21Thu
22Fri1:263.312:534.66:112.58:311.56:386:45Third Quarter22Fri
23Sat3:263.01:544.56:442.810:081.46:396:44Third Quarter23Sat
24Sun6:003.23:244.48:383.111:271.16:396:42Third Quarter24Sun
25Mon6:443.64:504.710:503.06:406:41Third Quarter25Mon
26Tue7:103.95:565.112:200.712:012.66:416:40Waning Crescent26Tue
27Wed7:364.36:495.51:010.312:512.16:416:38Waning Crescent27Wed
28Thu8:034.77:385.81:380.01:361.56:426:37Waning Crescent28Thu
29Fri8:335.28:246.02:14-0.22:200.96:436:36Waning Crescent29Fri
30Sat9:045.69:106.02:49-0.23:040.46:436:34New Moon30Sat
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 1:38 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 spring phase. Tonight's moon is 99% 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 maximum.

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 Full Moon (99% illuminated). This places Oceanside, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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