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 5h 47m at 6:56 am (1.4 ft)
Next high tide : 1:46 pm (5.3 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 - Aug 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:173.66:516.41:390.112:202.86:027:47Waning Crescent1Sun
2Mon8:553.97:416.92:24-0.51:192.66:037:46Waning Crescent2Mon
3Tue9:314.28:297.33:05-1.02:122.36:047:45New Moon3Tue
4Wed10:064.59:167.53:45-1.43:022.06:047:44New Moon4Wed
5Thu10:434.710:027.54:25-1.53:511.76:057:43New Moon5Thu
6Fri11:225.010:497.15:04-1.34:411.56:067:42Waxing Crescent6Fri
7Sat12:025.25:42-0.95:351.46:067:41Waxing Crescent7Sat
8Sun12:455.46:21-0.36:351.46:077:40Waxing Crescent8Sun
9Mon12:325.51:305.56:580.47:431.46:087:39Waxing Crescent9Mon
10Tue1:344.62:205.57:371.29:071.46:087:38First Quarter10Tue
11Wed2:553.73:195.58:211.910:491.26:097:37First Quarter11Wed
12Thu4:533.34:275.69:222.66:107:36First Quarter12Thu
13Fri7:023.45:355.712:170.710:52 AM3.06:107:35Waxing Gibbous13Fri
14Sat8:133.86:355.81:200.312:133.06:117:34Waxing Gibbous14Sat
15Sun8:514.07:246.02:08-0.11:132.96:127:33Waxing Gibbous15Sun
16Mon9:174.28:066.22:46-0.21:582.66:127:32Waxing Gibbous16Mon
17Tue9:404.38:426.33:18-0.32:342.46:137:31Full Moon17Tue
18Wed10:024.59:156.33:46-0.33:062.16:147:30Full Moon18Wed
19Thu10:244.69:456.34:11-0.23:372.06:147:29Full Moon19Thu
20Fri10:474.710:146.14:36-0.14:091.86:157:28Full Moon20Fri
21Sat11:124.810:445.74:590.14:421.76:167:27Full Moon21Sat
22Sun11:374.911:155.35:220.55:181.76:167:25Waning Gibbous22Sun
23Mon12:024.95:440.95:581.86:177:24Waning Gibbous23Mon
24Tue12:295.06:031.36:461.86:187:23Waning Gibbous24Tue
25Wed12:304.11:005.06:201.87:501.96:187:22Waning Gibbous25Wed
26Thu1:313.41:415.06:352.39:251.86:197:21Third Quarter26Thu
27Fri3:363.02:465.16:472.711:151.46:207:19Third Quarter27Fri
28Sat4:165.36:207:18Third Quarter28Sat
29Sun7:473.65:355.712:270.711:04 AM3.36:217:17Waning Crescent29Sun
30Mon8:074.06:376.31:190.012:233.06:227:16Waning Crescent30Mon
31Tue8:334.47:316.82:02-0.51:202.46:227:14Waning Crescent31Tue
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 10:21 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 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