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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide (tomorrow) : 12:11 am (1.0 ft)
Next high tide : in 52m at 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 - Sep 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:313.61:155.16:232.49:101.96:247:12First Quarter1Wed
2Thu3:223.22:055.06:092.811:081.76:247:11First Quarter2Thu
3Fri3:454.96:257:09First Quarter3Fri
4Sat8:443.85:195.212:281.210:51 AM3.66:257:08First Quarter4Sat
5Sun8:194.16:215.71:170.612:193.36:267:07Waxing Gibbous5Sun
6Mon8:284.47:106.21:540.11:102.86:277:05Waxing Gibbous6Mon
7Tue8:464.77:546.72:28-0.31:532.36:277:04Waxing Gibbous7Tue
8Wed9:105.18:357.02:59-0.62:351.86:287:03Full Moon8Wed
9Thu9:365.59:177.03:31-0.73:161.26:297:01Full Moon9Thu
10Fri10:055.99:596.84:01-0.63:590.86:297:00Full Moon10Fri
11Sat10:366.210:446.34:32-0.34:450.56:306:59Full Moon11Sat
12Sun11:106.411:335.65:040.35:350.36:316:57Waning Gibbous12Sun
13Mon11:476.55:350.96:310.46:316:56Waning Gibbous13Mon
14Tue12:314.812:296.46:071.67:380.56:326:55Waning Gibbous14Tue
15Wed1:454.01:216.26:422.39:040.76:326:53Third Quarter15Wed
16Thu3:393.62:305.97:303.010:490.66:336:52Third Quarter16Thu
17Fri6:253.84:045.79:293.46:346:51Third Quarter17Fri
18Sat7:244.35:335.812:140.311:40 AM3.36:346:49Third Quarter18Sat
19Sun7:564.76:396.01:120.012:532.86:356:48Waning Crescent19Sun
20Mon8:235.07:306.31:56-0.21:422.36:366:46Waning Crescent20Mon
21Tue8:475.28:126.32:32-0.22:211.86:366:45Waning Crescent21Tue
22Wed9:095.48:496.33:01-0.12:561.46:376:44New Moon22Wed
23Thu9:315.69:226.13:260.13:281.26:386:42New Moon23Thu
24Fri9:525.89:545.83:480.43:590.96:386:41New Moon24Fri
25Sat10:125.910:265.44:090.84:310.86:396:40New Moon25Sat
26Sun10:335.910:595.04:281.25:040.86:396:38Waxing Crescent26Sun
27Mon10:525.911:374.54:451.65:400.86:406:37Waxing Crescent27Mon
28Tue11:125.85:002.06:201.06:416:36Waxing Crescent28Tue
29Wed12:224.011:32 AM5.65:102.47:121.26:416:34Waxing Crescent29Wed
30Thu1:283.511:58 AM5.45:102.88:251.46:426:33Waxing Crescent30Thu
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 8:25 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