Tides Today & Tomorrow in San Diego, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in San Diego, CA.
Next low tide : 6:30 am (1.3 ft)
Next high tide : in 3h 12m at 12:35 am (4.6 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9410170
Common Questions About Tides

San Diego, CA Tides - Sep 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:384.05:225.611:152.85:236:14Waning Crescent1Wed
2Thu7:174.36:125.812:430.212:112.65:236:13Waning Crescent2Thu
3Fri7:464.56:536.01:210.112:522.35:246:11Waning Crescent3Fri
4Sat8:104.77:296.11:520.01:262.15:246:10Waning Crescent4Sat
5Sun8:324.88:016.12:190.01:581.85:256:09New Moon5Sun
6Mon8:554.98:316.12:440.12:281.65:266:07New Moon6Mon
7Tue9:185.09:025.93:080.22:591.55:266:06New Moon7Tue
8Wed9:425.19:325.63:310.43:321.45:276:05New Moon8Wed
9Thu10:065.210:055.23:550.74:061.45:286:04Waxing Crescent9Thu
10Fri10:315.210:414.74:171.14:441.45:286:02Waxing Crescent10Fri
11Sat10:585.211:254.24:391.55:301.55:296:01Waxing Crescent11Sat
12Sun11:305.15:001.96:281.65:306:00Waxing Crescent12Sun
13Mon12:273.612:125.05:242.47:521.75:305:58First Quarter13Mon
14Tue2:123.31:195.05:562.89:351.45:315:57First Quarter14Tue
15Wed4:333.42:555.17:393.210:520.85:315:55First Quarter15Wed
16Thu5:453.84:195.510:023.211:460.35:325:54First Quarter16Thu
17Fri6:234.25:226.011:152.75:335:53Waxing Gibbous17Fri
18Sat6:564.76:166.512:32-0.312:102.15:335:51Waxing Gibbous18Sat
19Sun7:295.27:066.81:12-0.612:591.55:345:50Waxing Gibbous19Sun
20Mon8:035.67:537.01:51-0.81:460.95:355:49Full Moon20Mon
21Tue8:376.08:396.82:28-0.72:320.55:355:47Full Moon21Tue
22Wed9:136.39:266.43:04-0.43:190.25:365:46Full Moon22Wed
23Thu9:506.410:155.83:400.14:080.15:375:45Waning Gibbous23Thu
24Fri10:296.311:105.04:160.75:000.25:375:43Waning Gibbous24Fri
25Sat11:116.14:531.45:590.55:385:42Waning Gibbous25Sat
26Sun12:144.311:58 AM5.75:332.17:090.85:395:41Waning Gibbous26Sun
27Mon1:393.812:575.36:232.88:401.05:395:39Third Quarter27Mon
28Tue3:543.72:175.07:493.310:150.95:405:38Third Quarter28Tue
29Wed5:344.03:484.99:593.311:220.75:415:37Third Quarter29Wed
30Thu6:204.45:005.111:193.05:415:35Waning Crescent30Thu
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 3:32 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 19% 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 Waxing Crescent (19% 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