Tides Today & Tomorrow in San Diego, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in San Diego, CA.
Next low tide : in 3h 03m at 1:52 am (-0.6 ft)
Next high tide : 8:30 am (3.9 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9410170
Common Questions About Tides

San Diego, CA Tides - Nov 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:405.94:182.66:130.36:054:58Waning Gibbous1Wed
2Thu12:583.811:37 AM5.55:152.97:180.56:064:57Third Quarter2Thu
3Fri2:203.912:555.16:513.18:310.66:074:57Third Quarter3Fri
4Sat3:364.32:294.88:493.09:390.66:084:56Third Quarter4Sat
5Sun4:294.83:584.810:192.310:360.66:094:55Third Quarter5Sun
6Mon5:125.45:094.911:231.511:230.66:104:54Waning Crescent6Mon
7Tue5:516.06:095.012:160.76:114:53Waning Crescent7Tue
8Wed6:296.57:035.112:070.71:040.06:124:52Waning Crescent8Wed
9Thu7:066.97:535.112:480.81:49-0.56:124:52New Moon9Thu
10Fri7:437.18:405.01:271.12:32-0.96:134:51New Moon10Fri
11Sat8:207.19:274.82:051.33:15-0.96:144:50New Moon11Sat
12Sun8:566.910:154.52:421.73:58-0.86:154:50New Moon12Sun
13Mon9:346.611:064.33:202.04:42-0.56:164:49Waxing Crescent13Mon
14Tue10:126.13:592.45:29-0.16:174:48Waxing Crescent14Tue
15Wed12:034.110:54 AM5.64:432.76:180.36:184:48Waxing Crescent15Wed
16Thu1:063.911:43 AM5.05:403.07:130.76:194:47Waxing Crescent16Thu
17Fri2:204.012:474.47:003.28:141.06:204:47First Quarter17Fri
18Sat3:324.22:114.08:523.19:171.26:214:46First Quarter18Sat
19Sun4:234.53:423.910:282.710:101.46:214:46First Quarter19Sun
20Mon4:594.84:533.911:242.110:531.56:224:45First Quarter20Mon
21Tue5:305.25:494.012:051.56:234:45Waxing Gibbous21Tue
22Wed5:585.56:354.112:411.06:244:44Waxing Gibbous22Wed
23Thu6:275.97:174.212:041.61:150.56:254:44Waxing Gibbous23Thu
24Fri6:566.27:574.312:371.71:490.06:264:44Waxing Gibbous24Fri
25Sat7:266.58:364.31:101.72:24-0.46:274:43Full Moon25Sat
26Sun7:586.69:164.31:431.83:01-0.66:284:43Full Moon26Sun
27Mon8:316.79:594.32:181.93:39-0.76:294:43Full Moon27Mon
28Tue9:086.710:464.22:542.14:21-0.76:304:43Waning Gibbous28Tue
29Wed9:486.511:394.23:352.25:06-0.66:304:43Waning Gibbous29Wed
30Thu10:346.14:242.45:55-0.36:314:42Waning Gibbous30Thu
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 5:11 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 21% 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 Waning Crescent (21% 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