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 1h 25m 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 - May 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:285.33:593.99:110.08:592.66:007:30Third Quarter1Sat
2Sun2:524.95:074.410:220.110:472.35:597:31Third Quarter2Sun
3Mon4:254.75:584.911:250.25:587:31Third Quarter3Mon
4Tue5:454.76:415.512:061.612:180.25:577:32Waning Crescent4Tue
5Wed6:524.87:216.01:070.81:040.35:567:33Waning Crescent5Wed
6Thu7:504.87:596.41:580.11:470.55:557:34Waning Crescent6Thu
7Fri8:414.88:366.72:45-0.42:270.75:557:34Waning Crescent7Fri
8Sat9:294.89:126.83:28-0.83:040.95:547:35New Moon8Sat
9Sun10:144.69:476.74:10-1.03:411.25:537:36New Moon9Sun
10Mon11:004.410:236.54:50-1.04:171.55:527:37New Moon10Mon
11Tue11:474.210:596.25:32-0.84:531.95:517:37Waxing Crescent11Tue
12Wed12:374.06:14-0.55:322.25:517:38Waxing Crescent12Wed
13Thu1:323.86:58-0.26:162.55:507:39Waxing Crescent13Thu
14Fri12:175.22:353.87:460.27:132.85:497:39Waxing Crescent14Fri
15Sat1:064.73:463.88:390.68:352.95:497:40First Quarter15Sat
16Sun2:104.34:514.19:390.910:212.85:487:41First Quarter16Sun
17Mon3:333.95:384.410:381.111:452.35:477:42First Quarter17Mon
18Tue4:593.86:134.711:291.25:477:42First Quarter18Tue
19Wed6:073.86:435.112:401.812:111.25:467:43Waxing Gibbous19Wed
20Thu7:033.97:135.51:241.212:481.35:467:44Waxing Gibbous20Thu
21Fri7:514.17:435.92:020.61:241.45:457:44Waxing Gibbous21Fri
22Sat8:354.28:146.32:400.12:001.45:447:45Waxing Gibbous22Sat
23Sun9:184.38:476.53:17-0.42:351.55:447:46Full Moon23Sun
24Mon10:004.39:226.73:55-0.83:121.65:447:46Full Moon24Mon
25Tue10:444.39:596.84:35-1.03:501.75:437:47Full Moon25Tue
26Wed11:314.310:406.75:17-1.14:311.95:437:48Full Moon26Wed
27Thu12:224.36:02-1.15:192.05:427:48Waning Gibbous27Thu
28Fri1:184.36:51-0.96:172.25:427:49Waning Gibbous28Fri
29Sat12:186.02:184.47:43-0.57:292.45:427:49Waning Gibbous29Sat
30Sun1:215.43:214.68:38-0.28:572.35:417:50Third Quarter30Sun
31Mon2:364.84:235.09:390.210:352.05:417:51Third Quarter31Mon
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