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

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide (tomorrow) : 6:31 am (-0.2 ft)
Next high tide : in 4h 56m at 11:04 pm (6.1 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Nov 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:497.04:411.96:02-0.67:065:57Waning Gibbous1Tue
2Wed12:224.511:32 AM6.55:242.36:54-0.27:075:56Waning Gibbous2Wed
3Thu1:254.312:215.96:142.77:510.37:085:55Waning Gibbous3Thu
4Fri2:404.21:195.37:203.18:560.77:095:55Third Quarter4Fri
5Sat4:064.22:344.78:563.210:071.07:095:54Third Quarter5Sat
6Sun4:164.53:034.49:513.010:101.16:104:53Third Quarter6Sun
7Mon5:004.84:234.411:072.510:571.26:114:52Third Quarter7Mon
8Tue5:335.25:244.411:551.911:351.36:124:51Waning Crescent8Tue
9Wed6:005.56:144.512:331.46:134:51Waning Crescent9Wed
10Thu6:265.86:564.612:071.41:070.96:144:50Waning Crescent10Thu
11Fri6:516.17:354.612:371.51:400.56:154:49Waning Crescent11Fri
12Sat7:186.38:114.61:061.62:120.16:164:49New Moon12Sat
13Sun7:456.58:484.61:351.82:46-0.26:174:48New Moon13Sun
14Mon8:136.69:274.52:041.93:21-0.36:174:47New Moon14Mon
15Tue8:426.710:094.42:342.03:58-0.46:184:47New Moon15Tue
16Wed9:146.610:564.23:052.24:38-0.46:194:46Waxing Crescent16Wed
17Thu9:506.411:494.13:402.45:23-0.26:204:46Waxing Crescent17Thu
18Fri10:326.14:222.76:120.06:214:45Waxing Crescent18Fri
19Sat12:504.111:25 AM5.75:222.97:080.26:224:45Waxing Crescent19Sat
20Sun1:564.312:365.16:503.08:090.56:234:45First Quarter20Sun
21Mon3:034.62:064.78:382.89:130.76:244:44First Quarter21Mon
22Tue3:595.13:414.510:132.210:110.86:254:44First Quarter22Tue
23Wed4:455.75:004.511:221.311:031.06:254:43Waxing Gibbous23Wed
24Thu5:286.36:064.612:180.56:264:43Waxing Gibbous24Thu
25Fri6:096.87:044.71:08-0.26:274:43Waxing Gibbous25Fri
26Sat6:497.27:564.812:351.31:54-0.86:284:43Waxing Gibbous26Sat
27Sun7:307.48:454.81:181.42:38-1.16:294:42Full Moon27Sun
28Mon8:107.49:314.72:001.63:20-1.26:304:42Full Moon28Mon
29Tue8:497.310:184.62:421.84:03-1.16:314:42Full Moon29Tue
30Wed9:296.911:074.53:232.04:45-0.86:324:42Waning Gibbous30Wed
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 2:47 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 93% 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 (93% 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