Tides Today & Tomorrow in San Diego, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in San Diego, CA.
Next low tide : in 1h 50m at 8:36 pm (1.8 ft)
Next high tide (tomorrow) : 2:10 am (3.4 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9410170
Common Questions About Tides

San Diego, CA Tides - Feb 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:045.97:123.512:40-0.66:435:20Waxing Gibbous1Sat
2Sun6:006.47:573.91:28-1.36:435:21Waxing Gibbous2Sun
3Mon6:536.98:364.212:352.02:12-1.76:425:22Waxing Gibbous3Mon
4Tue7:427.19:134.41:291.72:53-1.96:415:23Full Moon4Tue
5Wed8:287.29:504.62:181.43:32-1.96:405:24Full Moon5Wed
6Thu9:137.010:284.83:051.24:10-1.66:405:25Full Moon6Thu
7Fri9:576.511:074.83:521.14:46-1.16:395:26Waning Gibbous7Fri
8Sat10:415.811:464.84:401.15:20-0.56:385:27Waning Gibbous8Sat
9Sun11:274.95:331.35:530.26:375:28Waning Gibbous9Sun
10Mon12:264.812:194.06:321.46:251.06:365:29Waning Gibbous10Mon
11Tue1:104.71:263.27:471.66:561.76:355:30Third Quarter11Tue
12Wed2:024.63:232.79:341.47:332.36:355:31Third Quarter12Wed
13Thu3:084.56:312.811:151.09:042.76:345:31Third Quarter13Thu
14Fri4:184.67:293.212:170.56:335:32Third Quarter14Fri
15Sat5:184.97:513.412:590.16:325:33Waning Crescent15Sat
16Sun6:065.28:093.61:32-0.36:315:34Waning Crescent16Sun
17Mon6:475.58:273.812:382.42:01-0.56:305:35Waning Crescent17Mon
18Tue7:225.88:474.01:142.12:28-0.76:295:36Waning Crescent18Tue
19Wed7:556.09:104.21:481.82:55-0.86:285:37New Moon19Wed
20Thu8:276.19:344.42:211.63:21-0.86:275:38New Moon20Thu
21Fri8:586.010:004.52:541.33:47-0.76:265:38New Moon21Fri
22Sat9:305.810:274.73:291.24:13-0.56:245:39New Moon22Sat
23Sun10:055.310:564.84:071.14:38-0.16:235:40Waxing Crescent23Sun
24Mon10:454.711:284.94:501.05:030.46:225:41Waxing Crescent24Mon
25Tue11:324.05:421.05:281.06:215:42Waxing Crescent25Tue
26Wed12:055.012:393.26:501.15:551.66:205:43First Quarter26Wed
27Thu12:545.02:332.78:251.06:292.26:195:43First Quarter27Thu
28Fri2:035.05:192.810:140.58:092.76:185:44First Quarter28Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410170)

Common Questions About San Diego, CA Tides

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What time does the tide turn (slack tide) in San Diego, CA today?

Slack tide in San Diego, CA is approximately 11:23 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 San Diego, CA?

San Diego, CA is currently in a transitional phase. Tonight's moon is 64% 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 San Diego, 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 San Diego, CA?

Tide predictions for San Diego, 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 San Diego, CA?

Tide data for San Diego, CA is sourced from NOAA Station #9410170. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410170.

What is the moon phase in San Diego, CA tonight?

Tonight the moon over San Diego, CA is Third Quarter (64% illuminated). This places San Diego, 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