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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 4h 16m at 2:04 am (0.4 ft)
Next high tide : 8:13 am (3.5 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Apr 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:145.810:286.44:16-0.54:23-0.26:357:08New Moon1Mon
2Tue11:005.211:016.45:01-0.64:530.46:347:09Waxing Crescent2Tue
3Wed11:504.511:346.15:47-0.65:221.16:327:10Waxing Crescent3Wed
4Thu12:473.86:38-0.35:491.86:317:10Waxing Crescent4Thu
5Fri12:105.72:003.37:350.16:112.46:307:11Waxing Crescent5Fri
6Sat12:505.38:490.46:287:12First Quarter6Sat
7Sun1:474.710:320.66:277:13First Quarter7Sun
8Mon3:254.47:393.811:590.511:553.16:267:13First Quarter8Mon
9Tue5:104.47:514.112:530.36:257:14First Quarter9Tue
10Wed6:184.68:054.312:542.61:300.26:237:15Waxing Gibbous10Wed
11Thu7:064.98:194.61:302.11:580.16:227:15Waxing Gibbous11Thu
12Fri7:455.08:364.92:021.62:230.16:217:16Waxing Gibbous12Fri
13Sat8:205.18:545.22:321.12:460.26:207:17Waxing Gibbous13Sat
14Sun8:545.19:145.53:040.63:080.36:197:18Full Moon14Sun
15Mon9:295.09:355.83:360.23:300.56:177:18Full Moon15Mon
16Tue10:044.89:576.04:09-0.13:520.86:167:19Full Moon16Tue
17Wed10:424.410:216.14:45-0.34:131.26:157:20Full Moon17Wed
18Thu11:264.110:486.15:24-0.44:341.66:147:20Waning Gibbous18Thu
19Fri12:193.66:09-0.34:552.06:137:21Waning Gibbous19Fri
20Sat1:293.27:03-0.25:172.46:127:22Waning Gibbous20Sat
21Sun12:015.73:133.18:120.05:392.86:117:23Waning Gibbous21Sun
22Mon1:005.45:523.49:370.07:133.26:097:23Third Quarter22Mon
23Tue2:345.16:213.811:00-0.110:373.16:087:24Third Quarter23Tue
24Wed4:225.06:494.412:01-0.36:077:25Third Quarter24Wed
25Thu5:445.27:174.912:052.412:49-0.56:067:25Waning Crescent25Thu
26Fri6:485.47:475.51:051.51:30-0.46:057:26Waning Crescent26Fri
27Sat7:435.48:186.01:550.72:06-0.36:047:27Waning Crescent27Sat
28Sun8:345.48:496.52:420.02:410.06:037:28New Moon28Sun
29Mon9:225.19:216.73:26-0.63:130.46:027:28New Moon29Mon
30Tue10:094.89:526.84:09-0.93:440.96:017:29New Moon30Tue
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 5:08 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 transitional phase. Tonight's moon is 77% 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 Waxing Gibbous (77% 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