Tides Today & Tomorrow in San Diego, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in San Diego, CA.
Next low tide : 4:46 pm (2.0 ft)
Next high tide : in 4h 05m at 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 - May 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:584.87:290.46:007:31Waning Gibbous1Wed
2Thu8:380.65:597:31Third Quarter2Thu
3Fri12:564.49:580.65:587:32Third Quarter3Fri
4Sat2:454.16:363.711:040.511:113.05:577:33Third Quarter4Sat
5Sun4:324.16:464.111:500.45:567:34Third Quarter5Sun
6Mon5:434.37:054.612:112.412:280.35:557:34Waning Crescent6Mon
7Tue6:394.47:275.112:571.71:010.35:557:35Waning Crescent7Tue
8Wed7:304.67:535.71:390.91:330.45:547:36Waning Crescent8Wed
9Thu8:194.68:226.22:210.12:060.65:537:36Waning Crescent9Thu
10Fri9:084.68:546.63:03-0.62:390.95:527:37New Moon10Fri
11Sat9:584.49:296.93:47-1.13:131.25:517:38New Moon11Sat
12Sun10:514.210:077.04:33-1.43:491.65:517:39New Moon12Sun
13Mon11:503.910:506.85:24-1.54:282.05:507:39Waxing Crescent13Mon
14Tue12:573.66:19-1.35:142.45:497:40Waxing Crescent14Tue
15Wed2:143.57:20-1.06:162.75:497:41Waxing Crescent15Wed
16Thu12:415.93:413.78:28-0.77:463.05:487:41First Quarter16Thu
17Fri1:555.34:564.09:40-0.49:412.95:477:42First Quarter17Fri
18Sat3:224.85:474.510:46-0.111:212.35:477:43First Quarter18Sat
19Sun4:494.56:264.911:410.15:467:44First Quarter19Sun
20Mon6:024.46:595.312:291.712:240.45:467:44Waxing Gibbous20Mon
21Tue7:034.27:295.71:221.01:010.75:457:45Waxing Gibbous21Tue
22Wed7:564.17:575.92:060.51:331.15:457:46Waxing Gibbous22Wed
23Thu8:434.08:236.12:450.02:021.45:447:46Waxing Gibbous23Thu
24Fri9:253.98:496.23:20-0.32:291.75:447:47Full Moon24Fri
25Sat10:063.89:156.13:54-0.52:552.05:437:48Full Moon25Sat
26Sun10:463.79:416.14:27-0.63:212.25:437:48Full Moon26Sun
27Mon11:293.510:095.95:02-0.53:472.45:427:49Full Moon27Mon
28Tue12:163.45:40-0.44:142.65:427:49Waning Gibbous28Tue
29Wed1:103.36:22-0.24:422.85:427:50Waning Gibbous29Wed
30Thu2:113.37:070.05:183.05:417:51Waning Gibbous30Thu
31Fri3:203.47:570.26:243.25:417:51Waning Gibbous31Fri
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 2:09 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 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