Tides Today & Tomorrow in San Diego, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in San Diego, CA.
Next low tide : in 3h 05m at 7:41 pm (1.5 ft)
Next high tide (tomorrow) : 1:31 am (3.8 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9410170
Common Questions About Tides

San Diego, CA Tides - Mar 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:214.52:492.88:371.47:202.36:165:45First Quarter1Sun
2Mon2:284.35:342.910:291.29:022.76:155:46First Quarter2Mon
3Tue3:494.36:433.211:420.810:442.76:145:47First Quarter3Tue
4Wed4:574.67:123.512:280.46:135:48Waxing Gibbous4Wed
5Thu5:494.97:343.81:030.06:115:48Waxing Gibbous5Thu
6Fri6:315.27:544.012:292.11:32-0.26:105:49Waxing Gibbous6Fri
7Sat7:075.58:154.31:051.71:59-0.46:095:50Waxing Gibbous7Sat
8Sun7:415.78:384.51:391.42:25-0.56:085:51Full Moon8Sun
9Mon8:145.89:034.72:121.12:52-0.56:065:51Full Moon9Mon
10Tue8:465.79:294.92:450.83:18-0.46:055:52Full Moon10Tue
11Wed9:215.59:575.13:200.63:45-0.26:045:53Full Moon11Wed
12Thu9:585.210:265.23:580.54:120.16:025:54Waning Gibbous12Thu
13Fri10:404.711:005.24:400.54:400.66:015:54Waning Gibbous13Fri
14Sat11:304.111:395.15:310.55:101.16:005:55Waning Gibbous14Sat
15Sun12:363.46:330.75:461.75:595:56Waning Gibbous15Sun
16Mon12:305.02:143.07:570.76:382.25:575:57Third Quarter16Mon
17Tue1:424.94:203.19:370.58:292.65:565:57Third Quarter17Tue
18Wed3:144.95:433.510:580.010:232.45:555:58Third Quarter18Wed
19Thu4:365.26:314.011:57-0.511:372.05:535:59Waning Crescent19Thu
20Fri5:425.67:084.512:45-0.95:526:00Waning Crescent20Fri
21Sat6:366.07:424.912:331.41:26-1.15:516:00Waning Crescent21Sat
22Sun7:246.18:155.31:210.92:03-1.15:496:01New Moon22Sun
23Mon8:086.18:475.52:050.42:38-0.95:486:02New Moon23Mon
24Tue8:505.99:195.62:460.13:10-0.55:476:02New Moon24Tue
25Wed9:315.59:515.63:27-0.13:41-0.15:456:03New Moon25Wed
26Thu10:124.910:225.54:070.04:100.55:446:04Waxing Crescent26Thu
27Fri10:564.310:545.24:490.14:381.05:436:05Waxing Crescent27Fri
28Sat11:453.711:284.95:350.45:051.65:426:05Waxing Crescent28Sat
29Sun12:463.26:270.75:312.25:406:06Waxing Crescent29Sun
30Mon12:074.62:252.97:351.06:002.65:396:07First Quarter30Mon
31Tue1:024.25:423.09:131.17:523.05:386:07First Quarter31Tue
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 10:36 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 transitional phase. Tonight's moon is 28% 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 shifting between spring and neap.

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 (28% illuminated). This places San Diego, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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