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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 3h 59m at 7:48 pm (2.6 ft)
Next high tide (tomorrow) : 1:12 am (4.6 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Aug 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:383.85:366.110:582.06:027:46First Quarter1Sun
2Mon7:034.06:326.41:000.512:062.26:037:46Waxing Gibbous2Mon
3Tue8:064.27:216.61:550.01:052.26:047:45Waxing Gibbous3Tue
4Wed8:524.58:066.82:41-0.41:572.26:047:44Waxing Gibbous4Wed
5Thu9:304.68:466.83:20-0.62:402.06:057:43Full Moon5Thu
6Fri10:034.89:236.83:54-0.63:191.96:067:42Full Moon6Fri
7Sat10:344.89:576.64:26-0.53:551.96:067:41Full Moon7Sat
8Sun11:054.910:316.34:57-0.34:301.86:077:40Full Moon8Sun
9Mon11:364.911:036.05:260.05:061.96:087:39Waning Gibbous9Mon
10Tue12:074.95:550.35:432.06:097:38Waning Gibbous10Tue
11Wed12:414.96:230.76:262.16:097:37Waning Gibbous11Wed
12Thu12:135.01:164.86:521.17:172.26:107:36Waning Gibbous12Thu
13Fri12:564.41:574.87:211.68:232.36:117:35Third Quarter13Fri
14Sat1:553.82:484.87:542.19:572.26:117:34Third Quarter14Sat
15Sun3:353.43:534.98:432.511:341.86:127:33Third Quarter15Sun
16Mon5:393.45:005.210:102.86:137:32Third Quarter16Mon
17Tue7:003.75:575.612:391.211:32 AM2.86:137:31Waning Crescent17Tue
18Wed7:484.06:476.11:270.612:342.66:147:30Waning Crescent18Wed
19Thu8:244.47:326.62:070.11:252.36:157:29Waning Crescent19Thu
20Fri8:574.78:177.02:45-0.42:122.06:157:27Waning Crescent20Fri
21Sat9:315.19:007.33:22-0.72:571.66:167:26New Moon21Sat
22Sun10:065.49:437.33:59-0.93:421.36:177:25New Moon22Sun
23Mon10:435.610:287.14:36-0.94:281.06:177:24New Moon23Mon
24Tue11:225.811:166.65:13-0.65:170.96:187:23Waxing Crescent24Tue
25Wed12:045.95:52-0.16:120.96:197:22Waxing Crescent25Wed
26Thu12:085.912:505.96:320.57:141.06:197:20Waxing Crescent26Thu
27Fri1:085.11:415.97:151.28:281.26:207:19First Quarter27Fri
28Sat2:224.42:435.88:061.810:011.16:207:18First Quarter28Sat
29Sun4:033.93:575.79:162.411:350.86:217:17First Quarter29Sun
30Mon5:553.95:145.810:502.76:227:15First Quarter30Mon
31Tue7:134.36:196.012:460.412:112.66:227:14Waxing Gibbous31Tue
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 10:30 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 Waning Gibbous (71% illuminated). This places National City, San Diego Bay, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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