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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 5h 38m at 7:34 am (0.4 ft)
Next high tide : 2:15 pm (4.6 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

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

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:494.58:097.22:39-0.51:581.96:037:46Waning Crescent1Sat
2Sun9:304.98:557.53:21-1.02:481.66:037:45New Moon2Sun
3Mon10:105.29:417.64:02-1.23:371.46:047:44New Moon3Mon
4Tue10:525.410:287.44:42-1.34:261.26:057:44New Moon4Tue
5Wed11:355.611:166.95:24-1.05:171.26:057:43Waxing Crescent5Wed
6Thu12:205.66:05-0.66:131.26:067:42Waxing Crescent6Thu
7Fri12:086.21:095.76:480.07:151.46:077:41Waxing Crescent7Fri
8Sat1:055.42:015.67:320.68:281.56:077:40First Quarter8Sat
9Sun2:134.63:015.68:221.39:571.56:087:39First Quarter9Sun
10Mon3:404.04:095.69:231.911:321.26:097:38First Quarter10Mon
11Tue5:273.85:175.710:402.36:097:37First Quarter11Tue
12Wed6:583.96:165.912:460.811:55 AM2.56:107:36Waxing Gibbous12Wed
13Thu7:574.27:066.11:410.412:552.56:117:35Waxing Gibbous13Thu
14Fri8:374.47:486.22:230.11:422.36:117:34Waxing Gibbous14Fri
15Sat9:084.68:256.32:580.02:212.26:127:33Waxing Gibbous15Sat
16Sun9:344.78:586.43:28-0.12:552.06:137:32Full Moon16Sun
17Mon10:004.99:296.43:55-0.13:271.86:137:31Full Moon17Mon
18Tue10:265.09:596.34:220.03:591.76:147:29Full Moon18Tue
19Wed10:535.010:306.04:480.14:321.76:157:28Full Moon19Wed
20Thu11:215.111:015.75:140.35:061.76:157:27Waning Gibbous20Thu
21Fri11:505.111:345.35:400.65:441.76:167:26Waning Gibbous21Fri
22Sat12:215.16:071.06:271.86:177:25Waning Gibbous22Sat
23Sun12:124.812:565.16:331.47:201.96:177:24Waning Gibbous23Sun
24Mon1:014.21:395.17:031.98:342.06:187:22Third Quarter24Mon
25Tue2:163.72:385.17:412.310:121.86:197:21Third Quarter25Tue
26Wed4:153.53:545.38:512.711:401.36:197:20Third Quarter26Wed
27Thu6:003.75:095.610:402.86:207:19Third Quarter27Thu
28Fri7:044.16:126.212:420.711:59 AM2.66:217:18Waning Crescent28Fri
29Sat7:484.57:066.71:320.01:002.26:217:16Waning Crescent29Sat
30Sun8:275.07:567.12:15-0.51:521.76:227:15Waning Crescent30Sun
31Mon9:045.48:447.42:56-0.82:411.26:237:14New Moon31Mon
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 10:54 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 71% 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 Waning Gibbous (71% 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