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 05m at 5:33 pm (2.2 ft)
Next high tide : 11:38 pm (6.9 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 - Aug 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:033.62:385.07:342.110:132.06:037:46Third Quarter1Wed
2Thu3:513.13:415.07:572.611:581.66:037:45Third Quarter2Thu
3Fri6:543.24:525.29:072.96:047:44Third Quarter3Fri
4Sat8:033.55:545.51:011.111:15 AM3.16:057:44Waning Crescent4Sat
5Sun8:243.86:445.91:440.612:252.96:057:43Waning Crescent5Sun
6Mon8:454.17:286.32:190.21:182.66:067:42Waning Crescent6Mon
7Tue9:084.48:096.72:51-0.22:032.36:077:41Waning Crescent7Tue
8Wed9:334.78:487.03:22-0.52:452.06:077:40New Moon8Wed
9Thu10:015.09:277.03:53-0.73:261.66:087:39New Moon9Thu
10Fri10:315.310:076.94:23-0.74:091.36:097:38New Moon10Fri
11Sat11:035.610:496.54:55-0.54:541.16:097:37Waxing Crescent11Sat
12Sun11:385.811:365.85:26-0.15:441.06:107:36Waxing Crescent12Sun
13Mon12:176.05:590.46:411.06:117:35Waxing Crescent13Mon
14Tue12:295.01:016.16:331.07:491.16:117:34Waxing Crescent14Tue
15Wed1:354.21:546.07:101.79:141.16:127:33First Quarter15Wed
16Thu3:063.63:015.97:582.310:560.86:137:32First Quarter16Thu
17Fri5:153.54:226.09:202.86:137:30First Quarter17Fri
18Sat6:583.85:406.212:200.411:11 AM2.96:147:29Waxing Gibbous18Sat
19Sun7:514.26:436.51:20-0.112:322.76:157:28Waxing Gibbous19Sun
20Mon8:284.67:356.72:08-0.41:312.36:157:27Waxing Gibbous20Mon
21Tue8:584.98:206.82:47-0.52:191.96:167:26Waxing Gibbous21Tue
22Wed9:265.28:596.73:20-0.52:591.66:177:25Full Moon22Wed
23Thu9:535.49:356.53:50-0.43:361.46:177:24Full Moon23Thu
24Fri10:205.510:096.24:17-0.14:121.26:187:22Full Moon24Fri
25Sat10:465.610:435.84:420.34:471.26:197:21Full Moon25Sat
26Sun11:125.611:175.25:050.75:231.26:197:20Waning Gibbous26Sun
27Mon11:385.611:534.75:281.16:021.36:207:19Waning Gibbous27Mon
28Tue12:055.55:481.66:471.56:217:17Waning Gibbous28Tue
29Wed12:364.112:355.36:052.17:431.76:217:16Waning Gibbous29Wed
30Thu1:353.51:145.16:162.59:071.86:227:15Third Quarter30Thu
31Fri3:313.22:155.06:062.911:031.76:237:14Third Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410152)

Common Questions About National City, San Diego Bay, CA Tides

Show All
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 8:35 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 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