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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 7:34 am (0.4 ft)
Next high tide : in 2h 09m at 12:21 am (5.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - May 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:454.17:054.612:222.412:320.76:007:30Third Quarter1Fri
2Sat6:404.37:304.91:061.91:080.65:597:31Waning Crescent2Sat
3Sun7:264.57:555.31:431.31:400.65:587:31Waning Crescent3Sun
4Mon8:074.68:215.72:180.82:110.75:587:32Waning Crescent4Mon
5Tue8:464.78:486.02:530.32:410.85:577:33Waning Crescent5Tue
6Wed9:264.79:166.23:28-0.13:110.95:567:33New Moon6Wed
7Thu10:064.79:476.44:05-0.53:421.15:557:34New Moon7Thu
8Fri10:504.510:206.54:44-0.74:141.45:547:35New Moon8Fri
9Sat11:384.310:576.45:27-0.84:491.75:537:36Waxing Crescent9Sat
10Sun12:354.16:15-0.75:302.05:527:36Waxing Crescent10Sun
11Mon1:403.97:08-0.66:232.45:527:37Waxing Crescent11Mon
12Tue12:335.82:553.98:10-0.37:392.65:517:38Waxing Crescent12Tue
13Wed1:405.34:164.19:19-0.19:222.75:507:39First Quarter13Wed
14Thu3:044.95:214.610:300.011:032.35:497:39First Quarter14Thu
15Fri4:344.76:105.111:320.15:497:40First Quarter15Fri
16Sat5:514.76:525.612:181.612:240.25:487:41Waxing Gibbous16Sat
17Sun6:574.87:306.01:170.91:100.35:487:41Waxing Gibbous17Sun
18Mon7:544.88:066.42:070.21:510.55:477:42Waxing Gibbous18Mon
19Tue8:444.88:416.62:52-0.32:290.85:467:43Waxing Gibbous19Tue
20Wed9:314.79:156.73:33-0.73:051.15:467:43Full Moon20Wed
21Thu10:154.69:486.64:13-0.83:401.45:457:44Full Moon21Thu
22Fri10:594.410:216.44:52-0.84:131.75:457:45Full Moon22Fri
23Sat11:454.210:536.15:31-0.74:472.05:447:45Waning Gibbous23Sat
24Sun12:344.06:12-0.45:222.35:447:46Waning Gibbous24Sun
25Mon1:283.96:54-0.16:022.65:437:47Waning Gibbous25Mon
26Tue12:055.32:283.87:410.26:562.95:437:47Waning Gibbous26Tue
27Wed12:494.83:383.98:320.58:143.05:427:48Third Quarter27Wed
28Thu1:484.44:434.19:300.810:003.05:427:49Third Quarter28Thu
29Fri3:114.05:314.410:291.011:312.65:427:49Third Quarter29Fri
30Sat4:413.86:074.811:211.15:417:50Third Quarter30Sat
31Sun5:533.96:385.212:302.012:051.15:417:50Waning Crescent31Sun
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 3:57 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 spring phase. Tonight's moon is 80% 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 maximum.

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 Waning Gibbous (80% illuminated). This places National City, San Diego Bay, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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