Tides Today & Tomorrow in Oceanside, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Oceanside, CA.
Next low tide : 11:00 pm (1.4 ft)
Next high tide : in 1h 46m at 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 - Mar 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:034.611:434.35:041.05:260.37:176:46Waning Gibbous1Thu
2Fri11:364.15:401.05:470.77:166:47Waning Gibbous2Fri
3Sat12:084.212:133.66:221.16:071.17:156:48Waning Gibbous3Sat
4Sun12:374.212:593.07:151.36:261.67:136:48Waning Gibbous4Sun
5Mon1:124.12:182.58:311.36:412.07:126:49Third Quarter5Mon
6Tue2:024.010:221.27:116:50Third Quarter6Tue
7Wed3:214.011:550.77:106:51Third Quarter7Wed
8Thu4:524.37:543.112:500.27:086:51Third Quarter8Thu
9Fri6:024.78:133.41:31-0.37:076:52Waning Crescent9Fri
10Sat6:565.28:373.812:482.12:08-0.87:066:53Waning Crescent10Sat
11Sun7:435.79:044.11:361.62:42-1.17:056:54Waning Crescent11Sun
12Mon8:286.09:334.52:201.13:17-1.37:036:55New Moon12Mon
13Tue9:136.110:054.93:030.63:51-1.27:026:55New Moon13Tue
14Wed9:585.910:385.13:490.24:26-1.07:016:56New Moon14Wed
15Thu10:455.411:145.34:36-0.15:01-0.56:596:57Waxing Crescent15Thu
16Fri11:354.811:535.35:27-0.25:370.16:586:58Waxing Crescent16Fri
17Sat12:324.06:24-0.16:140.86:576:58Waxing Crescent17Sat
18Sun12:375.21:453.37:310.16:561.56:556:59Waxing Crescent18Sun
19Mon1:294.93:372.88:550.27:542.16:547:00First Quarter19Mon
20Tue2:374.65:553.010:340.29:412.56:537:01First Quarter20Tue
21Wed4:064.57:113.311:59-0.111:372.56:517:01First Quarter21Wed
22Thu5:324.57:523.71:00-0.36:507:02Waxing Gibbous22Thu
23Fri6:384.78:233.912:492.11:45-0.56:497:03Waxing Gibbous23Fri
24Sat7:284.98:494.11:371.72:20-0.56:477:03Waxing Gibbous24Sat
25Sun8:095.09:114.32:141.32:50-0.46:467:04Waxing Gibbous25Sun
26Mon8:445.09:314.42:461.03:15-0.36:457:05Full Moon26Mon
27Tue9:164.99:504.53:160.73:38-0.16:437:06Full Moon27Tue
28Wed9:474.710:104.63:450.53:590.16:427:06Full Moon28Wed
29Thu10:184.510:304.74:150.44:200.46:417:07Full Moon29Thu
30Fri10:504.110:524.74:470.34:400.86:397:08Full Moon30Fri
31Sat11:263.711:154.75:220.34:591.16:387:09Waning Gibbous31Sat
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 6:47 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 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