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

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 6h 20m at 4:27 am (-1.7 ft)
Next high tide : 10:44 am (4.6 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:50 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Apr 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:145.99:296.63:15-0.53:25-0.36:347:09New Moon1Sun
2Mon10:025.610:066.74:01-0.94:010.06:337:09New Moon2Mon
3Tue10:505.210:446.74:47-1.14:370.56:327:10New Moon3Tue
4Wed11:414.711:246.45:36-1.05:141.06:307:11Waxing Crescent4Wed
5Thu12:384.16:27-0.75:531.66:297:11Waxing Crescent5Thu
6Fri12:086.01:453.77:24-0.26:382.16:287:12Waxing Crescent6Fri
7Sat12:595.43:133.48:310.27:402.66:277:13First Quarter7Sat
8Sun2:034.95:093.59:550.59:262.86:257:14First Quarter8Sun
9Mon3:284.56:193.911:180.611:262.66:247:14First Quarter9Mon
10Tue4:594.46:584.212:180.56:237:15First Quarter10Tue
11Wed6:084.57:264.512:352.11:010.56:227:16Waxing Gibbous11Wed
12Thu7:004.67:494.81:211.61:340.56:207:16Waxing Gibbous12Thu
13Fri7:434.78:115.11:571.22:010.66:197:17Waxing Gibbous13Fri
14Sat8:204.78:345.42:300.72:260.76:187:18Waxing Gibbous14Sat
15Sun8:554.78:575.73:010.32:510.86:177:19Full Moon15Sun
16Mon9:294.79:215.93:330.03:161.06:167:19Full Moon16Mon
17Tue10:044.59:466.04:06-0.23:411.16:157:20Full Moon17Tue
18Wed10:414.310:136.04:40-0.44:061.46:137:21Full Moon18Wed
19Thu11:224.110:416.05:17-0.44:321.66:127:21Waning Gibbous19Thu
20Fri12:093.85:58-0.34:591.96:117:22Waning Gibbous20Fri
21Sat1:063.56:46-0.15:312.26:107:23Waning Gibbous21Sat
22Sun2:163.47:420.06:192.56:097:24Waning Gibbous22Sun
23Mon12:505.33:413.58:490.27:492.86:087:24Third Quarter23Mon
24Tue2:074.94:573.910:030.39:572.76:077:25Third Quarter24Tue
25Wed3:444.75:484.411:090.211:322.16:067:26Third Quarter25Wed
26Thu5:124.76:295.012:030.26:057:27Third Quarter26Thu
27Fri6:234.97:075.612:381.312:490.26:047:27Waning Crescent27Fri
28Sat7:245.07:456.21:330.51:320.26:037:28Waning Crescent28Sat
29Sun8:195.08:226.72:23-0.32:130.46:027:29Waning Crescent29Sun
30Mon9:105.09:007.03:09-0.92:520.66:017:30New Moon30Mon
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 7:35 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 1% 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 New Moon (1% 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