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 3h 41m 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 - Oct 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:166.28:435.52:070.62:380.25:425:34Full Moon1Sat
2Sun8:456.59:265.22:350.93:20-0.15:435:33Full Moon2Sun
3Mon9:176.710:154.73:051.24:05-0.25:435:31Waning Gibbous3Mon
4Tue9:546.611:124.23:361.74:57-0.15:445:30Waning Gibbous4Tue
5Wed10:376.44:102.15:580.15:455:29Waning Gibbous5Wed
6Thu12:243.811:31 AM6.14:522.67:110.45:455:27Waning Gibbous6Thu
7Fri1:593.612:435.76:003.08:380.55:465:26Third Quarter7Fri
8Sat3:503.82:165.48:003.29:590.45:475:25Third Quarter8Sat
9Sun4:574.33:485.49:562.911:000.35:485:24Third Quarter9Sun
10Mon5:394.85:015.511:112.211:470.25:485:22Waning Crescent10Mon
11Tue6:135.35:595.612:061.65:495:21Waning Crescent11Tue
12Wed6:455.86:485.612:260.312:520.95:505:20Waning Crescent12Wed
13Thu7:156.17:335.51:010.51:330.55:505:19Waning Crescent13Thu
14Fri7:436.38:135.31:310.72:120.15:515:17New Moon14Fri
15Sat8:116.58:525.02:001.12:480.05:525:16New Moon15Sat
16Sun8:386.49:314.72:261.43:24-0.15:535:15New Moon16Sun
17Mon9:056.310:124.32:511.84:000.05:535:14Waxing Crescent17Mon
18Tue9:316.110:584.03:162.24:390.35:545:13Waxing Crescent18Tue
19Wed9:595.811:533.63:382.55:230.65:555:12Waxing Crescent19Wed
20Thu10:295.44:002.86:160.95:565:10Waxing Crescent20Thu
21Fri1:063.411:07 AM5.04:213.17:211.15:575:09Waxing Crescent21Fri
22Sat12:104.68:391.35:575:08First Quarter22Sat
23Sun4:423.81:554.38:043.69:481.25:585:07First Quarter23Sun
24Mon5:044.13:334.310:043.210:371.15:595:06First Quarter24Mon
25Tue5:254.54:414.511:042.611:151.06:005:05First Quarter25Tue
26Wed5:475.05:344.711:471.911:490.96:015:04Waxing Gibbous26Wed
27Thu6:125.56:224.912:271.26:015:03Waxing Gibbous27Thu
28Fri6:396.07:075.012:211.01:060.56:025:02Waxing Gibbous28Fri
29Sat7:086.57:525.012:531.11:46-0.16:035:01Full Moon29Sat
30Sun7:406.98:374.91:261.22:28-0.66:045:00Full Moon30Sun
31Mon8:147.19:254.72:001.43:12-0.96:054:59Full Moon31Mon
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