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 4h 19m 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 - Sep 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:285.39:027.53:20-1.12:581.46:237:12Full Moon1Sun
2Mon10:035.79:477.43:58-1.13:451.06:247:11Full Moon2Mon
3Tue10:385.910:336.94:34-0.84:310.86:247:10Full Moon3Tue
4Wed11:156.111:206.35:10-0.45:200.76:257:09Waning Gibbous4Wed
5Thu11:536.15:440.36:120.86:267:07Waning Gibbous5Thu
6Fri12:105.512:336.06:181.07:091.06:267:06Waning Gibbous6Fri
7Sat1:074.61:165.76:531.88:171.26:277:05Waning Gibbous7Sat
8Sun2:223.92:075.57:292.59:491.36:287:03Third Quarter8Sun
9Mon4:313.63:175.28:233.111:341.26:287:02Third Quarter9Mon
10Tue7:033.84:445.110:263.46:297:01Third Quarter10Tue
11Wed7:514.25:575.312:450.812:103.36:306:59Waning Crescent11Wed
12Thu8:174.56:515.61:330.51:062.96:306:58Waning Crescent12Thu
13Fri8:374.77:335.92:090.31:442.66:316:57Waning Crescent13Fri
14Sat8:554.88:096.12:380.22:162.26:316:55Waning Crescent14Sat
15Sun9:145.08:426.23:040.12:471.86:326:54Waning Crescent15Sun
16Mon9:345.29:136.23:280.13:171.56:336:53New Moon16Mon
17Tue9:555.49:446.13:510.23:491.36:336:51New Moon17Tue
18Wed10:185.610:165.94:140.44:221.16:346:50New Moon18Wed
19Thu10:415.710:505.54:370.74:571.06:356:49New Moon19Thu
20Fri11:055.811:295.04:591.15:361.06:356:47Waxing Crescent20Fri
21Sat11:325.85:201.56:221.06:366:46Waxing Crescent21Sat
22Sun12:174.412:035.85:412.07:211.16:376:44Waxing Crescent22Sun
23Mon1:243.812:455.76:032.58:411.26:376:43First Quarter23Mon
24Tue3:113.41:495.56:283.010:231.06:386:42First Quarter24Tue
25Wed5:593.63:305.57:553.411:470.56:386:40First Quarter25Wed
26Thu6:544.15:075.711:033.36:396:39First Quarter26Thu
27Fri7:244.66:176.212:450.012:222.86:406:38Waxing Gibbous27Fri
28Sat7:545.17:146.61:32-0.41:192.16:406:36Waxing Gibbous28Sat
29Sun8:255.68:056.82:13-0.62:081.46:416:35Waxing Gibbous29Sun
30Mon8:566.08:526.82:50-0.62:530.86:426:34Full Moon30Mon
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