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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 5:26 pm (1.7 ft)
Next high tide : in 6h 17m at 12:07 pm (5.0 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jan 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:304.811:48 AM5.26:052.06:410.26:504:53Waning Gibbous1Wed
2Thu1:214.812:454.47:142.27:250.86:504:54Third Quarter2Thu
3Fri2:184.81:573.78:432.28:151.46:504:55Third Quarter3Fri
4Sat3:194.93:353.310:261.99:151.86:514:56Third Quarter4Sat
5Sun4:155.15:133.311:401.410:172.16:514:57Third Quarter5Sun
6Mon5:035.36:253.412:300.96:514:57Waning Crescent6Mon
7Tue5:445.67:143.61:080.46:514:58Waning Crescent7Tue
8Wed6:215.97:493.81:410.06:514:59Waning Crescent8Wed
9Thu6:566.18:204.012:402.12:12-0.36:515:00Waning Crescent9Thu
10Fri7:306.38:504.21:182.02:42-0.66:515:01New Moon10Fri
11Sat8:026.49:214.31:551.93:12-0.76:505:02New Moon11Sat
12Sun8:346.59:524.52:301.83:43-0.86:505:02New Moon12Sun
13Mon9:076.410:264.63:061.74:14-0.86:505:03New Moon13Mon
14Tue9:416.211:024.73:441.74:46-0.66:505:04Waxing Crescent14Tue
15Wed10:195.811:414.74:261.75:19-0.36:505:05Waxing Crescent15Wed
16Thu11:015.35:161.85:540.16:505:06Waxing Crescent16Thu
17Fri12:244.911:54 AM4.66:171.86:330.66:495:07Waxing Crescent17Fri
18Sat1:145.01:053.97:361.87:211.16:495:08First Quarter18Sat
19Sun2:145.22:463.49:161.58:241.66:495:09First Quarter19Sun
20Mon3:215.54:363.310:480.99:451.86:485:10First Quarter20Mon
21Tue4:265.96:003.611:560.110:591.96:485:11Waxing Gibbous21Tue
22Wed5:256.37:004.012:50-0.56:485:12Waxing Gibbous22Wed
23Thu6:186.77:474.412:031.81:37-1.16:475:13Waxing Gibbous23Thu
24Fri7:077.08:284.712:581.52:18-1.46:475:14Waxing Gibbous24Fri
25Sat7:537.19:064.91:481.32:57-1.56:465:15Full Moon25Sat
26Sun8:367.09:445.12:341.13:34-1.46:465:15Full Moon26Sun
27Mon9:176.710:215.13:181.04:10-1.16:455:16Full Moon27Mon
28Tue9:576.310:595.14:021.14:44-0.76:445:17Waning Gibbous28Tue
29Wed10:375.611:385.04:461.25:17-0.26:445:18Waning Gibbous29Wed
30Thu11:194.95:331.45:490.46:435:19Waning Gibbous30Thu
31Fri12:184.912:054.26:271.66:211.06:435:20Waning Gibbous31Fri
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 2:46 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 8% 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 (8% 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