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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in National City, San Diego Bay, CA.
Next low tide : in 3h 24m at 6:15 am (-1.5 ft)
Next high tide : 12:43 pm (4.4 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Oct 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:455.78:515.62:420.72:561.16:436:32Full Moon1Sun
2Mon9:055.99:235.43:030.93:270.76:436:31Full Moon2Mon
3Tue9:266.19:565.23:241.13:580.56:446:29Full Moon3Tue
4Wed9:486.210:294.93:451.44:300.46:456:28Full Moon4Wed
5Thu10:106.311:074.54:051.75:050.46:456:27Waning Gibbous5Thu
6Fri10:336.211:504.14:232.05:440.56:466:26Waning Gibbous6Fri
7Sat10:596.14:402.46:310.76:476:24Waning Gibbous7Sat
8Sun12:483.711:32 AM5.94:542.77:310.96:476:23Waning Gibbous8Sun
9Mon2:153.412:195.65:053.08:511.06:486:22Third Quarter9Mon
10Tue1:385.310:200.96:496:21Third Quarter10Tue
11Wed6:133.93:295.29:253.611:270.66:506:19Third Quarter11Wed
12Thu6:254.45:005.411:213.16:506:18Third Quarter12Thu
13Fri6:495.06:085.712:160.312:242.36:516:17Waning Crescent13Fri
14Sat7:165.67:055.912:570.21:161.46:526:16Waning Crescent14Sat
15Sun7:476.27:576.01:340.22:040.66:536:15Waning Crescent15Sun
16Mon8:196.88:485.92:100.32:51-0.26:536:13New Moon16Mon
17Tue8:537.29:375.62:450.63:37-0.76:546:12New Moon17Tue
18Wed9:287.510:275.33:201.04:23-0.96:556:11New Moon18Wed
19Thu10:057.511:204.83:551.45:11-0.96:566:10Waxing Crescent19Thu
20Fri10:447.24:311.96:03-0.66:566:09Waxing Crescent20Fri
21Sat12:204.411:27 AM6.75:082.47:00-0.26:576:08Waxing Crescent21Sat
22Sun1:304.012:176.15:522.88:060.26:586:07Waxing Crescent22Sun
23Mon3:013.91:205.56:553.39:230.66:596:06First Quarter23Mon
24Tue4:534.12:455.08:463.510:410.77:006:05First Quarter24Tue
25Wed5:544.44:204.811:003.211:410.87:006:03First Quarter25Wed
26Thu6:294.85:364.812:142.77:016:02First Quarter26Thu
27Fri6:555.16:334.812:240.91:002.17:026:01Waxing Gibbous27Fri
28Sat7:175.47:194.812:581.01:371.67:036:01Waxing Gibbous28Sat
29Sun7:395.78:004.81:261.22:101.17:046:00Waxing Gibbous29Sun
30Mon8:016.08:374.81:511.32:420.67:055:59Waxing Gibbous30Mon
31Tue8:246.39:134.72:161.53:130.37:055:58Full Moon31Tue
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 9:29 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 10% 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 Crescent (10% 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