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

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 9:14 pm (2.3 ft)
Next high tide : in 1h 25m at 2:58 pm (4.9 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:46 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Feb 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:516.98:264.412:381.92:12-1.56:425:21Waning Crescent1Thu
2Fri7:397.19:054.61:311.72:53-1.76:415:22New Moon2Fri
3Sat8:247.29:424.82:181.53:32-1.76:405:23New Moon3Sat
4Sun9:067.010:194.93:031.34:09-1.46:405:24New Moon4Sun
5Mon9:476.610:574.93:471.24:44-1.06:395:25Waxing Crescent5Mon
6Tue10:286.011:344.94:311.35:18-0.56:385:26Waxing Crescent6Tue
7Wed11:095.35:171.45:510.16:375:27Waxing Crescent7Wed
8Thu12:134.811:54 AM4.56:091.66:220.86:365:28Waxing Crescent8Thu
9Fri12:544.712:483.77:111.86:531.46:365:29First Quarter9Fri
10Sat1:404.62:113.18:381.87:292.06:355:30First Quarter10Sat
11Sun2:394.64:392.910:341.58:342.46:345:30First Quarter11Sun
12Mon3:484.76:463.111:531.010:142.76:335:31First Quarter12Mon
13Tue4:504.97:263.412:410.56:325:32Waxing Gibbous13Tue
14Wed5:415.27:503.71:170.06:315:33Waxing Gibbous14Wed
15Thu6:245.68:113.912:192.41:48-0.36:305:34Waxing Gibbous15Thu
16Fri7:035.98:344.21:012.12:17-0.76:295:35Waxing Gibbous16Fri
17Sat7:396.28:584.41:381.92:46-0.96:285:36Full Moon17Sat
18Sun8:136.49:244.62:141.63:15-1.06:275:37Full Moon18Sun
19Mon8:476.49:524.82:491.33:44-0.96:265:37Full Moon19Mon
20Tue9:236.310:224.93:261.14:13-0.86:255:38Full Moon20Tue
21Wed10:015.910:555.14:061.04:43-0.46:245:39Waning Gibbous21Wed
22Thu10:435.411:315.24:510.95:130.16:235:40Waning Gibbous22Thu
23Fri11:334.65:450.95:450.66:215:41Waning Gibbous23Fri
24Sat12:125.212:373.96:511.06:211.36:205:42Third Quarter24Sat
25Sun1:035.22:113.28:200.97:071.96:195:42Third Quarter25Sun
26Mon2:115.24:253.110:050.68:372.46:185:43Third Quarter26Mon
27Tue3:345.46:073.511:280.010:292.56:175:44Third Quarter27Tue
28Wed4:505.77:003.912:29-0.66:165:45Waning Crescent28Wed
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 6:06 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 61% 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 Third Quarter (61% 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