Tides Today & Tomorrow in Oceanside, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Oceanside, CA.
Next low tide : 11:38 pm (1.4 ft)
Next high tide : in 29m at 3:57 pm (4.9 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9410230
Common Questions About Tides

Oceanside, CA Tides - Jul 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:013.77:576.52:33-0.81:332.15:448:02Waxing Gibbous1Thu
2Fri9:443.98:396.53:15-1.02:212.15:448:02Full Moon2Fri
3Sat10:234.09:196.43:54-1.13:052.05:458:02Full Moon3Sat
4Sun10:594.19:576.24:30-1.03:472.05:458:02Full Moon4Sun
5Mon11:344.110:345.85:05-0.84:282.15:458:02Full Moon5Mon
6Tue12:094.25:38-0.45:102.15:468:02Waning Gibbous6Tue
7Wed12:444.26:10-0.15:552.25:468:02Waning Gibbous7Wed
8Thu1:224.26:420.46:482.35:478:01Waning Gibbous8Thu
9Fri12:264.32:024.37:130.97:542.45:488:01Waning Gibbous9Fri
10Sat1:133.72:474.47:441.39:232.35:488:01Third Quarter10Sat
11Sun2:233.13:374.58:201.811:052.05:498:01Third Quarter11Sun
12Mon4:232.74:304.79:062.15:498:00Third Quarter12Mon
13Tue6:292.85:225.012:201.410:10 AM2.45:508:00Third Quarter13Tue
14Wed7:413.06:105.31:100.911:21 AM2.65:507:59Waning Crescent14Wed
15Thu8:233.36:535.71:480.412:212.55:517:59Waning Crescent15Thu
16Fri8:563.57:356.12:23-0.11:122.45:527:59Waning Crescent16Fri
17Sat9:263.88:166.42:57-0.51:582.25:527:58New Moon17Sat
18Sun9:574.08:576.63:31-0.82:422.05:537:58New Moon18Sun
19Mon10:304.29:396.64:05-1.03:271.85:547:57New Moon19Mon
20Tue11:054.510:226.44:40-1.04:141.65:547:57New Moon20Tue
21Wed11:424.711:086.05:16-0.85:061.55:557:56Waxing Crescent21Wed
22Thu12:224.95:53-0.46:031.55:557:56Waxing Crescent22Thu
23Fri1:075.16:320.17:101.55:567:55Waxing Crescent23Fri
24Sat12:564.51:575.27:120.78:321.45:577:54First Quarter24Sat
25Sun2:113.72:565.47:581.410:071.25:577:54First Quarter25Sun
26Mon3:573.24:025.58:561.911:370.75:587:53First Quarter26Mon
27Tue5:563.15:105.710:122.35:597:52First Quarter27Tue
28Wed7:223.46:115.912:470.211:34 AM2.56:007:52Waxing Gibbous28Wed
29Thu8:163.77:056.11:40-0.212:422.46:007:51Waxing Gibbous29Thu
30Fri8:564.07:516.22:24-0.51:362.36:017:50Waxing Gibbous30Fri
31Sat9:294.28:326.33:02-0.62:212.16:027:49Full Moon31Sat
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 7:47 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 Oceanside, CA?

Oceanside, CA is currently in a neap phase. Tonight's moon is 53% 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 (53% 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