Tides Today & Tomorrow in San Diego, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in San Diego, CA.
Next low tide : in 46m at 5:13 am (-0.3 ft)
Next high tide : 11:32 am (4.6 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9410170
Common Questions About Tides

San Diego, CA Tides - Feb 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:204.711:57 AM4.36:111.66:180.76:425:22Waning Gibbous1Fri
2Sat1:014.612:543.57:191.86:461.46:415:23Third Quarter2Sat
3Sun1:484.62:232.88:551.77:142.06:405:23Third Quarter3Sun
4Mon2:454.55:182.610:471.37:572.56:405:24Third Quarter4Mon
5Tue3:524.67:283.012:000.86:395:25Third Quarter5Tue
6Wed4:534.87:513.312:470.36:385:26Waning Crescent6Wed
7Thu5:455.18:083.51:22-0.16:375:27Waning Crescent7Thu
8Fri6:295.48:253.712:132.61:52-0.56:365:28Waning Crescent8Fri
9Sat7:075.88:453.912:552.42:21-0.76:355:29Waning Crescent9Sat
10Sun7:416.09:074.01:322.12:49-0.96:355:30New Moon10Sun
11Mon8:146.29:314.22:061.83:16-1.06:345:31New Moon11Mon
12Tue8:476.29:584.42:401.53:43-0.96:335:32New Moon12Tue
13Wed9:206.110:254.63:161.44:10-0.86:325:33New Moon13Wed
14Thu9:555.710:554.73:541.24:37-0.46:315:33Waxing Crescent14Thu
15Fri10:345.111:284.94:381.15:040.16:305:34Waxing Crescent15Fri
16Sat11:204.45:301.15:300.76:295:35Waxing Crescent16Sat
17Sun12:055.012:213.56:351.15:581.36:285:36First Quarter17Sun
18Mon12:505.11:582.88:051.16:291.96:275:37First Quarter18Mon
19Tue1:535.14:402.69:570.77:312.56:265:38First Quarter19Tue
20Wed3:165.26:373.111:240.09:592.86:255:39First Quarter20Wed
21Thu4:375.67:163.612:24-0.76:245:40Waxing Gibbous21Thu
22Fri5:436.07:474.01:12-1.26:225:40Waxing Gibbous22Fri
23Sat6:396.48:174.312:312.11:53-1.56:215:41Waxing Gibbous23Sat
24Sun7:286.68:464.61:221.62:29-1.56:205:42Full Moon24Sun
25Mon8:116.79:164.92:061.13:02-1.46:195:43Full Moon25Mon
26Tue8:526.49:465.02:480.83:33-1.16:185:44Full Moon26Tue
27Wed9:306.010:165.13:280.64:02-0.66:175:44Full Moon27Wed
28Thu10:095.410:465.14:090.64:28-0.16:155:45Waning Gibbous28Thu
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 8:22 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 spring phase. Tonight's moon is 95% 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 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 Gibbous (95% illuminated). This places San Diego, 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