Tides Today & Tomorrow in National City, San Diego Bay, CA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 5:33 pm (2.2 ft)
Next high tide : in 1h 56m at 12:43 pm (4.4 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - May 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:014.06:38-1.15:472.16:007:30Waning Gibbous1Tue
2Wed12:036.22:113.87:36-0.76:462.55:597:31Waning Gibbous2Wed
3Thu1:005.63:323.88:39-0.28:082.85:587:31Third Quarter3Thu
4Fri2:104.94:514.09:490.29:592.75:577:32Third Quarter4Fri
5Sat3:344.55:464.410:560.411:392.35:577:33Third Quarter5Sat
6Sun5:004.26:254.711:490.65:567:33Third Quarter6Sun
7Mon6:104.26:565.112:421.812:300.85:557:34Waning Crescent7Mon
8Tue7:064.17:225.41:281.21:051.05:547:35Waning Crescent8Tue
9Wed7:544.17:485.62:060.71:341.35:537:36Waning Crescent9Wed
10Thu8:354.18:135.92:400.32:031.45:527:36Waning Crescent10Thu
11Fri9:134.18:406.13:12-0.12:301.65:527:37New Moon11Fri
12Sat9:504.19:066.23:44-0.32:581.85:517:38New Moon12Sat
13Sun10:274.09:346.24:17-0.53:261.95:507:39New Moon13Sun
14Mon11:073.910:046.24:52-0.63:542.15:497:39New Moon14Mon
15Tue11:503.810:366.15:29-0.54:242.35:497:40Waxing Crescent15Tue
16Wed12:403.66:10-0.44:562.55:487:41Waxing Crescent16Wed
17Thu1:353.66:55-0.35:392.75:477:41Waxing Crescent17Thu
18Fri2:363.77:44-0.16:452.85:477:42Waxing Crescent18Fri
19Sat12:505.23:393.98:380.18:222.95:467:43First Quarter19Sat
20Sun2:024.84:344.39:350.310:102.55:467:43First Quarter20Sun
21Mon3:324.45:194.910:320.511:351.85:457:44First Quarter21Mon
22Tue5:024.26:005.511:250.75:457:45First Quarter22Tue
23Wed6:184.26:406.112:401.012:120.95:447:45Waxing Gibbous23Wed
24Thu7:264.37:216.71:350.112:581.15:447:46Waxing Gibbous24Thu
25Fri8:264.48:027.12:26-0.71:441.35:437:47Waxing Gibbous25Fri
26Sat9:204.48:457.43:14-1.32:301.55:437:47Full Moon26Sat
27Sun10:114.49:287.44:01-1.63:151.75:427:48Full Moon27Sun
28Mon11:024.410:127.24:48-1.74:011.85:427:49Full Moon28Mon
29Tue11:544.310:576.85:35-1.54:482.05:427:49Waning Gibbous29Tue
30Wed12:484.26:22-1.25:392.25:417:50Waning Gibbous30Wed
31Thu1:434.27:10-0.76:372.55:417:50Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410152)

Common Questions About National City, San Diego Bay, CA Tides

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What time does the tide turn (slack tide) in National City, San Diego Bay, CA today?

Slack tide in National City, San Diego Bay, CA is approximately 3:08 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 National City, San Diego Bay, CA?

National City, San Diego Bay, CA is currently in a spring phase. Tonight's moon is 10% 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 National City, San Diego Bay, 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 National City, San Diego Bay, CA?

Tide predictions for National City, San Diego Bay, 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 National City, San Diego Bay, CA?

Tide data for National City, San Diego Bay, CA is sourced from NOAA Station #9410152. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410152.

What is the moon phase in National City, San Diego Bay, CA tonight?

Tonight the moon over National City, San Diego Bay, CA is Waxing Crescent (10% illuminated). This places National City, San Diego Bay, 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