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

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 6h 13m at 3:19 am (-0.3 ft)
Next high tide : 9:42 am (3.8 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Apr 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:263.86:19-0.55:221.76:357:09Waxing Crescent1Fri
2Sat1:423.27:21-0.35:492.26:337:09Waxing Crescent2Sat
3Sun12:385.93:433.08:40-0.16:222.76:327:10First Quarter3Sun
4Mon1:485.56:203.410:18-0.18:513.16:317:11First Quarter4Mon
5Tue3:295.26:543.911:42-0.311:212.86:297:11First Quarter5Tue
6Wed5:075.27:234.412:40-0.56:287:12First Quarter6Wed
7Thu6:205.47:504.812:372.11:25-0.66:277:13Waxing Gibbous7Thu
8Fri7:175.58:175.31:311.42:02-0.56:267:13Waxing Gibbous8Fri
9Sat8:055.58:435.72:170.82:34-0.36:247:14Waxing Gibbous9Sat
10Sun8:485.49:096.02:570.23:020.06:237:15Full Moon10Sun
11Mon9:285.19:346.13:35-0.13:270.46:227:16Full Moon11Mon
12Tue10:074.89:586.24:11-0.43:510.86:217:16Full Moon12Tue
13Wed10:464.410:226.14:47-0.44:131.36:207:17Full Moon13Wed
14Thu11:274.010:465.95:23-0.44:331.76:187:18Waning Gibbous14Thu
15Fri12:143.66:02-0.24:492.16:177:18Waning Gibbous15Fri
16Sat1:123.26:470.14:592.46:167:19Waning Gibbous16Sat
17Sun2:392.97:430.54:492.76:157:20Waning Gibbous17Sun
18Mon12:104.98:580.76:147:21Third Quarter18Mon
19Tue1:094.510:290.86:127:21Third Quarter19Tue
20Wed3:104.27:063.811:360.611:293.06:117:22Third Quarter20Wed
21Thu4:544.37:094.112:200.46:107:23Third Quarter21Thu
22Fri5:594.57:234.612:282.412:550.36:097:24Waning Crescent22Fri
23Sat6:514.77:425.11:111.81:250.36:087:24Waning Crescent23Sat
24Sun7:374.98:055.61:511.11:540.36:077:25Waning Crescent24Sun
25Mon8:234.98:316.12:300.32:230.56:067:26Waning Crescent25Mon
26Tue9:084.99:006.53:10-0.32:530.76:057:26New Moon26Tue
27Wed9:544.79:326.93:52-0.93:241.16:047:27New Moon27Wed
28Thu10:444.410:077.04:36-1.23:561.46:037:28New Moon28Thu
29Fri11:404.010:476.95:25-1.34:301.86:027:29Waxing Crescent29Fri
30Sat12:443.76:19-1.25:092.26:017:29Waxing Crescent30Sat
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 6:30 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 91% 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 Waxing Gibbous (91% 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