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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 10:51 pm (1.8 ft)
Next high tide : in 5h 22m at 3:46 pm (5.3 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Aug 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:324.17:327.12:15-0.41:122.46:037:46Waxing Gibbous1Thu
2Fri9:154.58:227.53:00-1.02:082.26:037:45Waxing Gibbous2Fri
3Sat9:564.79:107.73:43-1.43:001.96:047:44Full Moon3Sat
4Sun10:365.09:587.74:25-1.53:501.66:057:44Full Moon4Sun
5Mon11:165.210:457.45:06-1.44:401.56:057:43Full Moon5Mon
6Tue11:595.411:346.85:47-1.15:331.46:067:42Waning Gibbous6Tue
7Wed12:425.56:27-0.56:301.56:077:41Waning Gibbous7Wed
8Thu12:266.01:285.57:070.27:341.66:077:40Waning Gibbous8Thu
9Fri1:245.12:185.57:480.98:511.76:087:39Third Quarter9Fri
10Sat2:354.23:145.58:321.710:301.56:097:38Third Quarter10Sat
11Sun4:173.64:185.59:292.36:097:37Third Quarter11Sun
12Mon6:223.65:235.612:041.210:46 AM2.86:107:36Third Quarter12Mon
13Tue7:503.86:205.81:120.712:032.96:117:35Waning Crescent13Tue
14Wed8:374.17:096.02:020.31:032.96:117:34Waning Crescent14Wed
15Thu9:074.37:516.22:400.11:492.76:127:33Waning Crescent15Thu
16Fri9:314.48:276.43:12-0.12:262.56:137:32Waning Crescent16Fri
17Sat9:534.69:006.53:40-0.22:592.26:137:31New Moon17Sat
18Sun10:164.79:326.54:06-0.23:312.06:147:29New Moon18Sun
19Mon10:404.810:026.44:32-0.14:031.96:157:28New Moon19Mon
20Tue11:064.910:326.24:570.04:371.86:157:27New Moon20Tue
21Wed11:325.011:045.85:220.25:121.86:167:26Waxing Crescent21Wed
22Thu11:595.111:395.35:460.55:511.86:177:25Waxing Crescent22Thu
23Fri12:285.16:100.96:381.86:177:24Waxing Crescent23Fri
24Sat12:204.71:015.26:341.47:381.96:187:22Waxing Crescent24Sat
25Sun1:154.11:425.36:581.99:011.86:197:21First Quarter25Sun
26Mon2:443.52:415.37:302.410:461.46:197:20First Quarter26Mon
27Tue5:033.34:035.58:302.96:207:19First Quarter27Tue
28Wed6:503.75:225.912:090.810:44 AM3.16:217:18First Quarter28Wed
29Thu7:424.16:276.51:090.112:122.96:217:16Waxing Gibbous29Thu
30Fri8:204.57:237.01:57-0.51:152.46:227:15Waxing Gibbous30Fri
31Sat8:544.98:147.42:40-0.92:091.96:237:14Waxing Gibbous31Sat
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 7:18 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 neap phase. Tonight's moon is 50% 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 Third Quarter (50% 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