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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide (tomorrow) : 5:59 am (-0.4 ft)
Next high tide : in 4h 02m at 10:31 pm (6.3 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:44 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Apr 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:175.69:306.33:20-0.33:27-0.16:357:08New Moon1Thu
2Fri10:005.310:026.34:01-0.53:580.36:347:09New Moon2Fri
3Sat10:424.910:346.34:41-0.64:280.76:327:10New Moon3Sat
4Sun11:254.511:066.05:22-0.54:571.26:317:11Waxing Crescent4Sun
5Mon12:134.06:05-0.35:261.66:307:11Waxing Crescent5Mon
6Tue1:073.56:510.15:542.16:287:12Waxing Crescent6Tue
7Wed12:155.22:183.27:450.56:242.56:277:13Waxing Crescent7Wed
8Thu12:594.84:163.18:550.87:192.86:267:13First Quarter8Thu
9Fri2:064.46:133.410:230.99:463.06:257:14First Quarter9Fri
10Sat3:434.26:443.711:370.811:392.76:237:15First Quarter10Sat
11Sun5:124.27:054.112:250.76:227:15First Quarter11Sun
12Mon6:144.47:264.512:372.21:010.66:217:16Waxing Gibbous12Mon
13Tue7:024.67:484.91:191.61:320.56:207:17Waxing Gibbous13Tue
14Wed7:454.88:115.31:571.12:010.56:197:18Waxing Gibbous14Wed
15Thu8:254.98:365.72:320.52:290.66:177:18Waxing Gibbous15Thu
16Fri9:044.99:036.03:080.02:580.76:167:19Full Moon16Fri
17Sat9:444.89:326.33:45-0.43:270.96:157:20Full Moon17Sat
18Sun10:264.610:046.54:25-0.73:571.16:147:20Full Moon18Sun
19Mon11:124.410:406.55:07-0.94:291.46:137:21Waning Gibbous19Mon
20Tue12:054.15:54-0.85:051.76:127:22Waning Gibbous20Tue
21Wed1:063.86:47-0.75:482.16:107:23Waning Gibbous21Wed
22Thu12:096.02:203.67:48-0.46:492.46:097:23Waning Gibbous22Thu
23Fri1:125.63:463.78:59-0.28:232.76:087:24Third Quarter23Fri
24Sat2:325.15:034.110:140.010:192.56:077:25Third Quarter24Sat
25Sun4:054.85:574.611:210.011:501.96:067:26Third Quarter25Sun
26Mon5:294.86:405.212:150.16:057:26Waning Crescent26Mon
27Tue6:374.87:185.712:541.21:010.26:047:27Waning Crescent27Tue
28Wed7:354.97:536.11:470.51:410.46:037:28Waning Crescent28Wed
29Thu8:264.88:266.42:33-0.12:180.66:027:28Waning Crescent29Thu
30Fri9:124.78:596.53:14-0.52:520.96:017:29New Moon30Fri
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 2:15 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 97% 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 Full Moon (97% 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