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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 1h 52m at 5:33 pm (2.2 ft)
Next high tide : 11:38 pm (6.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Sep 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:545.06:237:12Third Quarter1Sat
2Sun7:513.85:185.312:191.211:01 AM3.46:247:11Third Quarter2Sun
3Mon7:504.16:175.71:050.712:163.06:247:10Waning Crescent3Mon
4Tue8:054.47:056.21:400.31:062.56:257:09Waning Crescent4Tue
5Wed8:274.97:486.52:130.01:502.06:267:07Waning Crescent5Wed
6Thu8:515.38:306.72:43-0.22:321.46:267:06New Moon6Thu
7Fri9:195.89:136.73:14-0.33:140.96:277:05New Moon7Fri
8Sat9:496.29:566.53:45-0.23:580.46:287:03New Moon8Sat
9Sun10:216.510:416.04:160.14:440.16:287:02New Moon9Sun
10Mon10:576.711:325.44:480.55:340.16:297:01Waxing Crescent10Mon
11Tue11:366.75:211.16:300.26:306:59Waxing Crescent11Tue
12Wed12:304.712:216.55:571.77:370.46:306:58Waxing Crescent12Wed
13Thu1:434.01:186.26:382.38:590.66:316:57First Quarter13Thu
14Fri3:253.72:325.97:392.910:380.66:316:55First Quarter14Fri
15Sat5:373.94:065.79:363.211:580.46:326:54First Quarter15Sat
16Sun6:474.35:315.811:333.06:336:53First Quarter16Sun
17Mon7:274.76:366.012:560.112:432.56:336:51Waxing Gibbous17Mon
18Tue7:585.17:266.11:400.01:342.06:346:50Waxing Gibbous18Tue
19Wed8:255.48:096.12:160.02:151.56:356:48Waxing Gibbous19Wed
20Thu8:505.78:466.02:460.22:511.26:356:47Full Moon20Thu
21Fri9:135.99:205.83:120.43:240.96:366:46Full Moon21Fri
22Sat9:366.09:535.63:350.73:560.76:376:44Full Moon22Sat
23Sun9:596.110:265.23:571.04:280.66:376:43Full Moon23Sun
24Mon10:226.111:014.84:191.45:010.66:386:42Waning Gibbous24Mon
25Tue10:456.011:394.44:391.75:370.76:386:40Waning Gibbous25Tue
26Wed11:095.94:572.16:190.96:396:39Waning Gibbous26Wed
27Thu12:253.911:35 AM5.65:122.57:101.26:406:38Waning Gibbous27Thu
28Fri1:303.512:105.45:202.88:211.46:406:36Waning Gibbous28Fri
29Sat3:323.31:055.15:043.19:561.46:416:35Third Quarter29Sat
30Sun2:474.911:191.26:426:34Third Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410152)

Common Questions About National City, San Diego Bay, CA Tides

Show All
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 8:35 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 spring phase. Tonight's moon is 10% 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 Waxing Crescent (10% 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