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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide (tomorrow) : in 52m at 10:49 pm (2.0 ft)
Next high tide : 4:03 am (3.9 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:41 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Aug 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:093.96:326.01:050.812:072.46:037:46Waxing Gibbous1Fri
2Sat8:094.17:176.11:560.41:012.46:037:45Waxing Gibbous2Sat
3Sun8:494.37:566.32:370.11:472.46:047:44Waxing Gibbous3Sun
4Mon9:214.48:326.43:11-0.12:252.36:057:43Waxing Gibbous4Mon
5Tue9:494.59:056.43:41-0.23:002.16:057:42Full Moon5Tue
6Wed10:164.79:366.44:09-0.23:332.06:067:41Full Moon6Wed
7Thu10:434.710:066.34:36-0.24:051.96:077:41Full Moon7Thu
8Fri11:124.810:376.15:040.04:381.96:087:40Full Moon8Fri
9Sat11:424.911:085.85:320.25:141.96:087:39Waning Gibbous9Sat
10Sun12:144.96:000.55:532.06:097:38Waning Gibbous10Sun
11Mon12:484.96:280.86:392.16:107:37Waning Gibbous11Mon
12Tue12:214.81:264.96:571.27:382.26:107:36Waning Gibbous12Tue
13Wed1:124.32:125.07:301.78:592.16:117:35Third Quarter13Wed
14Thu2:313.73:125.18:132.110:391.86:127:33Third Quarter14Thu
15Fri4:283.54:235.49:252.56:127:32Third Quarter15Fri
16Sat6:093.75:295.912:001.210:57 AM2.66:137:31Third Quarter16Sat
17Sun7:164.06:276.41:000.512:102.56:147:30Waning Crescent17Sun
18Mon8:044.57:206.91:49-0.21:102.26:147:29Waning Crescent18Mon
19Tue8:454.98:107.32:34-0.72:041.86:157:28Waning Crescent19Tue
20Wed9:245.38:587.53:15-1.02:531.46:167:27New Moon20Wed
21Thu10:025.69:447.53:56-1.13:421.06:167:26New Moon21Thu
22Fri10:425.810:317.24:35-1.04:300.96:177:24New Moon22Fri
23Sat11:225.911:186.65:14-0.75:200.86:187:23Waxing Crescent23Sat
24Sun12:055.95:53-0.16:130.96:187:22Waxing Crescent24Sun
25Mon12:095.912:505.86:330.57:121.16:197:21Waxing Crescent25Mon
26Tue1:065.11:405.77:141.38:221.46:207:20First Quarter26Tue
27Wed2:154.32:375.58:011.99:511.46:207:18First Quarter27Wed
28Thu3:513.83:485.39:042.511:281.36:217:17First Quarter28Thu
29Fri5:513.85:045.410:362.86:217:16First Quarter29Fri
30Sat7:134.16:085.512:400.912:012.86:227:15Waxing Gibbous30Sat
31Sun7:584.46:585.71:310.612:592.76:237:13Waxing Gibbous31Sun
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 1:26 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places National City, San Diego Bay, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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