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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in National City, San Diego Bay, CA.
Next low tide : 9:13 pm (2.3 ft)
Next high tide : in 1h 11m at 3:24 pm (4.9 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:41 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9410152
Common Questions About Tides

National City, San Diego Bay, CA Tides - Jul 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:314.39:406.54:21-0.53:332.15:448:00Full Moon1Sat
2Sun11:064.410:136.54:54-0.64:102.15:458:00Full Moon2Sun
3Mon11:444.410:486.35:28-0.54:482.25:458:00Waning Gibbous3Mon
4Tue12:254.56:04-0.45:322.25:458:00Waning Gibbous4Tue
5Wed1:084.66:41-0.26:242.35:467:59Waning Gibbous5Wed
6Thu12:115.51:544.77:200.17:282.45:467:59Waning Gibbous6Thu
7Fri1:065.02:465.08:040.58:492.35:477:59Third Quarter7Fri
8Sat2:164.43:445.38:551.010:231.95:477:59Third Quarter8Sat
9Sun3:493.94:435.79:551.311:471.35:487:59Third Quarter9Sun
10Mon5:253.85:396.111:011.65:487:58Waning Crescent10Mon
11Tue6:463.96:326.612:530.512:041.75:497:58Waning Crescent11Tue
12Wed7:514.27:227.01:49-0.21:021.85:507:58Waning Crescent12Wed
13Thu8:454.58:107.32:38-0.71:561.75:507:58Waning Crescent13Thu
14Fri9:324.78:567.43:23-1.12:471.65:517:57New Moon14Fri
15Sat10:154.99:407.34:06-1.33:351.65:517:57New Moon15Sat
16Sun10:585.010:237.14:46-1.24:211.65:527:56New Moon16Sun
17Mon11:405.111:066.65:26-0.95:081.75:537:56Waxing Crescent17Mon
18Tue12:235.16:04-0.55:561.85:537:55Waxing Crescent18Tue
19Wed1:075.06:420.06:472.05:547:55Waxing Crescent19Wed
20Thu12:345.31:525.07:190.57:462.25:547:54Waxing Crescent20Thu
21Fri1:244.72:424.97:581.18:592.35:557:54First Quarter21Fri
22Sat2:264.03:384.98:401.610:332.25:567:53First Quarter22Sat
23Sun3:523.54:375.09:332.15:567:53First Quarter23Sun
24Mon5:343.45:325.312:001.810:39 AM2.45:577:52First Quarter24Mon
25Tue6:573.56:195.51:011.311:42 AM2.55:587:51Waxing Gibbous25Tue
26Wed7:523.87:015.81:450.812:362.55:587:51Waxing Gibbous26Wed
27Thu8:304.07:396.12:210.41:222.45:597:50Waxing Gibbous27Thu
28Fri9:024.38:166.42:540.12:042.26:007:49Waxing Gibbous28Fri
29Sat9:334.58:506.63:26-0.22:432.06:007:49Full Moon29Sat
30Sun10:044.79:256.73:57-0.43:211.96:017:48Full Moon30Sun
31Mon10:364.910:016.74:28-0.54:001.76:027:47Full Moon31Mon
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 6:18 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 transitional phase. Tonight's moon is 38% 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 First Quarter (38% 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