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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 1h 35m at 9:34 am (1.8 ft)
Next high tide : 4:39 pm (5.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Feb 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:077.09:374.41:591.93:25-1.66:425:21New Moon1Sun
2Mon8:487.110:114.72:421.64:00-1.66:425:22New Moon2Mon
3Tue9:307.010:474.93:271.44:35-1.46:415:22New Moon3Tue
4Wed10:146.511:265.14:151.25:10-1.06:405:23Waxing Crescent4Wed
5Thu11:025.75:091.15:46-0.36:395:24Waxing Crescent5Thu
6Fri12:075.311:58 AM4.86:111.26:220.46:395:25Waxing Crescent6Fri
7Sat12:535.41:073.87:281.27:001.26:385:26First Quarter7Sat
8Sun1:475.42:533.19:081.07:491.96:375:27First Quarter8Sun
9Mon2:545.55:223.010:530.59:142.46:365:28First Quarter9Mon
10Tue4:085.67:013.412:10-0.16:355:29Waxing Gibbous10Tue
11Wed5:165.87:463.81:05-0.66:345:30Waxing Gibbous11Wed
12Thu6:146.18:184.112:072.51:48-0.96:335:31Waxing Gibbous12Thu
13Fri7:026.38:454.31:022.22:24-1.16:335:32Waxing Gibbous13Fri
14Sat7:436.49:094.41:451.92:56-1.16:325:32Full Moon14Sat
15Sun8:206.49:344.52:211.63:24-1.06:315:33Full Moon15Sun
16Mon8:536.39:584.62:551.43:49-0.86:305:34Full Moon16Mon
17Tue9:246.010:234.73:281.34:13-0.56:295:35Full Moon17Tue
18Wed9:555.610:474.84:011.24:35-0.16:285:36Waning Gibbous18Wed
19Thu10:265.111:124.84:361.24:560.36:275:37Waning Gibbous19Thu
20Fri10:584.511:364.85:151.35:140.86:255:38Waning Gibbous20Fri
21Sat11:363.86:001.45:281.36:245:39Waning Gibbous21Sat
22Sun12:034.712:273.26:591.55:361.86:235:39Third Quarter22Sun
23Mon12:364.72:182.68:321.55:272.26:225:40Third Quarter23Mon
24Tue1:304.610:351.26:215:41Third Quarter24Tue
25Wed3:074.78:173.311:500.69:443.16:205:42Third Quarter25Wed
26Thu4:355.07:373.612:370.06:195:43Waning Crescent26Thu
27Fri5:365.57:473.91:14-0.66:185:43Waning Crescent27Fri
28Sat6:276.18:074.312:232.41:49-1.16:175:44Waning Crescent28Sat
29Sun7:126.68:334.61:101.82:22-1.46:155:45Waning Crescent29Sun
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 1:06 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 39% 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 (39% 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