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 17m 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 - Jun 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:044.45:195.410:400.611:571.45:417:51Third Quarter1Tue
2Wed5:304.26:075.911:360.95:417:52Waning Crescent2Wed
3Thu6:454.16:526.31:020.712:271.15:407:52Waning Crescent3Thu
4Fri7:484.27:336.61:550.01:151.35:407:53Waning Crescent4Fri
5Sat8:424.38:136.82:42-0.51:591.55:407:53Waning Crescent5Sat
6Sun9:294.38:516.83:24-0.82:401.75:407:54New Moon6Sun
7Mon10:124.39:276.74:03-0.93:191.85:407:54New Moon7Mon
8Tue10:534.310:026.64:40-0.93:572.05:407:55New Moon8Tue
9Wed11:344.310:376.35:16-0.74:342.15:407:55New Moon9Wed
10Thu12:164.25:52-0.55:132.35:407:56Waxing Crescent10Thu
11Fri1:004.26:29-0.25:552.45:407:56Waxing Crescent11Fri
12Sat1:454.27:060.16:462.65:407:56Waxing Crescent12Sat
13Sun12:295.02:344.27:450.57:492.75:407:57Waxing Crescent13Sun
14Mon1:174.53:274.38:260.99:112.75:407:57First Quarter14Mon
15Tue2:204.04:204.69:121.210:462.45:407:58First Quarter15Tue
16Wed3:483.65:074.910:051.55:407:58First Quarter16Wed
17Thu5:183.45:485.312:001.910:59 AM1.75:407:58First Quarter17Thu
18Fri6:323.56:275.712:551.311:49 AM1.95:407:58Waxing Gibbous18Fri
19Sat7:323.77:056.11:400.612:361.95:407:59Waxing Gibbous19Sat
20Sun8:223.97:446.52:210.01:221.95:417:59Waxing Gibbous20Sun
21Mon9:074.28:246.93:01-0.52:081.95:417:59Full Moon21Mon
22Tue9:494.49:057.23:41-1.02:531.85:417:59Full Moon22Tue
23Wed10:324.69:477.24:21-1.33:391.85:417:59Full Moon23Wed
24Thu11:164.710:327.15:03-1.44:261.75:428:00Full Moon24Thu
25Fri12:034.85:46-1.35:181.85:428:00Waning Gibbous25Fri
26Sat12:525.06:30-1.06:171.95:428:00Waning Gibbous26Sat
27Sun12:126.21:435.17:15-0.57:241.95:438:00Waning Gibbous27Sun
28Mon1:115.52:395.38:030.08:431.95:438:00Third Quarter28Mon
29Tue2:204.73:385.58:560.610:171.75:438:00Third Quarter29Tue
30Wed3:464.14:395.89:551.111:461.25:448:00Third Quarter30Wed
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