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 16m at 7:48 pm (2.4 ft)
Next high tide (tomorrow) : 1:33 am (5.4 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 - Mar 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:526.69:325.92:510.13:28-1.16:155:46New Moon1Tue
2Wed9:386.310:116.13:38-0.14:04-0.76:145:46New Moon2Wed
3Thu10:265.710:526.14:28-0.24:42-0.26:125:47Waxing Crescent3Thu
4Fri11:195.011:385.95:21-0.15:220.46:115:48Waxing Crescent4Fri
5Sat12:214.26:220.26:051.16:105:49Waxing Crescent5Sat
6Sun12:315.61:403.67:350.56:581.86:095:49First Quarter6Sun
7Mon1:355.23:343.39:100.68:212.36:075:50First Quarter7Mon
8Tue2:565.05:253.610:460.410:122.46:065:51First Quarter8Tue
9Wed4:215.06:263.911:540.111:332.16:055:52First Quarter9Wed
10Thu5:285.27:044.312:42-0.16:045:52Waxing Gibbous10Thu
11Fri6:205.47:334.512:281.81:20-0.26:025:53Waxing Gibbous11Fri
12Sat7:015.57:574.81:091.41:50-0.26:015:54Waxing Gibbous12Sat
13Sun8:375.69:204.91:431.13:16-0.27:006:55Waxing Gibbous13Sun
14Mon9:095.69:435.13:140.83:39-0.16:586:55Full Moon14Mon
15Tue9:405.410:065.23:450.64:020.16:576:56Full Moon15Tue
16Wed10:105.310:295.34:150.54:250.36:566:57Full Moon16Wed
17Thu10:425.010:545.34:470.44:480.66:556:58Full Moon17Thu
18Fri11:154.611:185.35:210.45:110.96:536:58Waning Gibbous18Fri
19Sat11:524.211:455.25:580.55:321.26:526:59Waning Gibbous19Sat
20Sun12:363.76:410.75:541.66:517:00Waning Gibbous20Sun
21Mon12:175.01:373.37:360.96:192.06:497:01Waning Gibbous21Mon
22Tue1:004.83:143.08:511.06:582.46:487:01Third Quarter22Tue
23Wed2:074.65:173.110:270.98:592.76:477:02Third Quarter23Wed
24Thu3:484.66:243.611:440.511:142.56:457:03Third Quarter24Thu
25Fri5:174.97:034.112:380.16:447:03Third Quarter25Fri
26Sat6:235.37:384.712:262.01:23-0.36:437:04Waning Crescent26Sat
27Sun7:185.78:125.21:211.32:04-0.66:417:05Waning Crescent27Sun
28Mon8:086.08:475.82:100.62:42-0.76:407:05Waning Crescent28Mon
29Tue8:566.19:236.22:57-0.13:19-0.66:397:06New Moon29Tue
30Wed9:436.010:006.53:43-0.63:56-0.46:387:07New Moon30Wed
31Thu10:315.710:386.64:29-0.94:330.06:367:08New Moon31Thu
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 10:40 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 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