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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 8m at 8:45 am (1.4 ft)
Next high tide : 3:46 pm (5.3 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jun 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:514.06:455.212:322.012:091.05:417:51Waxing Gibbous1Sat
2Sun6:514.17:125.71:171.312:451.15:417:52Waxing Gibbous2Sun
3Mon7:464.27:426.22:000.61:201.35:407:52Waxing Gibbous3Mon
4Tue8:374.38:156.72:41-0.11:571.45:407:53Waxing Gibbous4Tue
5Wed9:274.38:507.03:23-0.82:351.65:407:53Full Moon5Wed
6Thu10:164.39:297.24:07-1.23:141.85:407:54Full Moon6Thu
7Fri11:094.210:117.34:53-1.53:572.05:407:54Full Moon7Fri
8Sat12:054.25:41-1.54:432.25:407:55Waning Gibbous8Sat
9Sun1:044.16:33-1.45:382.45:407:55Waning Gibbous9Sun
10Mon2:074.27:28-1.16:462.65:407:56Waning Gibbous10Mon
11Tue12:506.13:124.48:25-0.78:112.75:407:56Third Quarter11Tue
12Wed2:005.44:164.79:25-0.29:512.55:407:56Third Quarter12Wed
13Thu3:204.85:105.210:240.211:252.05:407:57Third Quarter13Thu
14Fri4:474.45:565.611:180.65:407:57Third Quarter14Fri
15Sat6:074.26:366.012:371.312:061.05:407:57Waning Crescent15Sat
16Sun7:164.17:136.31:340.712:491.35:407:58Waning Crescent16Sun
17Mon8:164.07:486.52:220.11:281.75:407:58Waning Crescent17Mon
18Tue9:074.08:216.63:04-0.32:051.95:407:58Waning Crescent18Tue
19Wed9:514.08:536.63:41-0.52:402.25:407:59New Moon19Wed
20Thu10:324.09:256.54:15-0.63:142.35:417:59New Moon20Thu
21Fri11:114.09:576.44:49-0.63:472.45:417:59New Moon21Fri
22Sat11:513.910:296.25:24-0.54:212.65:417:59New Moon22Sat
23Sun12:333.96:00-0.44:562.75:417:59Waxing Crescent23Sun
24Mon1:173.96:37-0.15:362.85:428:00Waxing Crescent24Mon
25Tue2:033.97:150.16:262.95:428:00Waxing Crescent25Tue
26Wed12:175.32:534.07:550.47:333.05:428:00Waxing Crescent26Wed
27Thu1:054.83:434.28:360.79:003.05:438:00First Quarter27Thu
28Fri2:074.34:294.69:211.010:372.65:438:00First Quarter28Fri
29Sat3:353.95:095.010:101.311:532.05:438:00First Quarter29Sat
30Sun5:083.65:475.510:591.65:448:00First Quarter30Sun
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 12:15 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 neap phase. Tonight's moon is 50% 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 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 Third Quarter (50% illuminated). This places National City, San Diego Bay, 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