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 1h 45m 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 - Jan 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:426.34:362.26:00-0.96:504:54Waning Gibbous1Tue
2Wed12:364.311:36 AM5.55:362.36:42-0.26:514:55Waning Gibbous2Wed
3Thu1:304.412:364.76:482.47:240.46:514:55Third Quarter3Thu
4Fri2:244.51:423.98:182.38:121.06:514:56Third Quarter4Fri
5Sat3:184.73:123.310:002.09:061.66:514:57Third Quarter5Sat
6Sun4:065.04:543.111:241.49:542.06:514:58Third Quarter6Sun
7Mon4:545.26:243.112:180.86:514:59Waning Crescent7Mon
8Tue5:305.47:243.31:000.36:514:59Waning Crescent8Tue
9Wed6:065.68:063.41:36-0.16:515:00Waning Crescent9Wed
10Thu6:425.88:363.612:182.52:12-0.46:515:01Waning Crescent10Thu
11Fri7:186.09:063.712:542.52:42-0.76:515:02New Moon11Fri
12Sat7:546.29:363.81:362.43:12-0.86:515:03New Moon12Sat
13Sun8:246.310:063.82:122.33:42-0.96:505:04New Moon13Sun
14Mon8:546.310:363.92:422.24:12-0.86:505:05New Moon14Mon
15Tue9:306.111:123.93:182.24:48-0.76:505:06Waxing Crescent15Tue
16Wed10:005.811:484.14:002.25:18-0.56:505:07Waxing Crescent16Wed
17Thu10:425.44:422.25:48-0.16:495:07Waxing Crescent17Thu
18Fri12:244.211:24 AM4.85:422.26:240.36:495:08Waxing Crescent18Fri
19Sat1:064.412:244.06:542.17:000.96:495:09First Quarter19Sat
20Sun1:544.71:543.38:301.97:421.46:485:10First Quarter20Sun
21Mon2:545.04:002.910:121.28:421.96:485:11First Quarter21Mon
22Tue3:545.55:483.011:300.410:062.36:485:12First Quarter22Tue
23Wed4:545.97:003.412:30-0.46:475:13Waxing Gibbous23Wed
24Thu5:486.47:543.71:18-1.16:475:14Waxing Gibbous24Thu
25Fri6:426.88:304.012:182.22:06-1.66:465:15Waxing Gibbous25Fri
26Sat7:307.19:124.31:182.02:48-1.96:465:16Full Moon26Sat
27Sun8:187.29:484.42:061.73:24-1.96:455:17Full Moon27Sun
28Mon9:007.010:244.62:541.54:06-1.66:445:18Full Moon28Mon
29Tue9:426.611:064.63:361.44:42-1.26:445:19Waning Gibbous29Tue
30Wed10:306.011:424.74:241.45:18-0.66:435:20Waning Gibbous30Wed
31Thu11:125.25:181.55:480.06:435:21Waning Gibbous31Thu
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