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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 6h 43m at 7:51 am (-0.6 ft)
Next high tide : 2:29 pm (4.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jan 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:275.44:382.25:350.26:504:53Waning Gibbous1Thu
2Fri12:074.311:02 AM4.95:242.46:060.56:504:54Waning Gibbous2Fri
3Sat12:484.411:44 AM4.46:212.56:400.96:504:54Waning Gibbous3Sat
4Sun1:354.512:423.87:392.57:191.36:514:55Third Quarter4Sun
5Mon2:294.62:183.39:202.28:101.76:514:56Third Quarter5Mon
6Tue3:264.94:123.110:471.69:202.06:514:57Third Quarter6Tue
7Wed4:205.45:373.311:470.910:292.16:514:58Waning Crescent7Wed
8Thu5:095.96:383.712:360.16:514:58Waning Crescent8Thu
9Fri5:566.47:274.01:19-0.66:514:59Waning Crescent9Fri
10Sat6:426.98:094.412:231.92:01-1.26:515:00Waning Crescent10Sat
11Sun7:287.38:504.71:151.62:41-1.66:515:01New Moon11Sun
12Mon8:137.59:314.92:041.43:22-1.86:515:02New Moon12Mon
13Tue8:587.410:135.12:531.24:03-1.76:505:03New Moon13Tue
14Wed9:447.110:585.33:421.14:44-1.46:505:04Waxing Crescent14Wed
15Thu10:336.511:455.34:351.15:26-0.96:505:05Waxing Crescent15Thu
16Fri11:255.75:341.36:08-0.36:505:05Waxing Crescent16Fri
17Sat12:355.412:254.86:411.46:530.46:505:06First Quarter17Sat
18Sun1:305.41:383.98:031.57:451.16:495:07First Quarter18Sun
19Mon2:325.43:193.49:451.38:501.76:495:08First Quarter19Mon
20Tue3:405.55:123.311:170.810:062.06:495:09First Quarter20Tue
21Wed4:445.66:353.512:220.36:485:10Waxing Gibbous21Wed
22Thu5:385.87:263.81:10-0.16:485:11Waxing Gibbous22Thu
23Fri6:236.08:024.012:122.11:47-0.46:485:12Waxing Gibbous23Fri
24Sat7:036.18:304.212:572.02:18-0.56:475:13Waxing Gibbous24Sat
25Sun7:386.28:564.31:351.92:46-0.66:475:14Full Moon25Sun
26Mon8:106.29:214.42:091.73:12-0.66:465:15Full Moon26Mon
27Tue8:406.29:474.52:411.63:38-0.56:465:16Full Moon27Tue
28Wed9:106.010:154.63:141.54:03-0.46:455:17Full Moon28Wed
29Thu9:405.710:434.73:471.54:29-0.26:445:18Waning Gibbous29Thu
30Fri10:115.311:134.74:231.54:540.16:445:19Waning Gibbous30Fri
31Sat10:444.911:454.75:021.65:190.56:435:20Waning Gibbous31Sat
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 11:10 am — 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 28% 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 Waxing Crescent (28% 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