Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 41m at 8:53 am (0.7 ft)
Next high tide : 3:57 pm (4.6 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:223.38:276.03:31-0.41:582.88:5911:28Waning Crescent1Sun
2Mon11:003.59:086.24:09-0.82:462.79:0011:28New Moon2Mon
3Tue11:383.69:506.44:48-1.13:342.79:0011:28New Moon3Tue
4Wed12:153.85:27-1.34:242.69:0011:27New Moon4Wed
5Thu12:523.96:06-1.35:182.59:0111:27New Moon5Thu
6Fri1:294.26:45-1.16:182.39:0211:27Waxing Crescent6Fri
7Sat12:115.72:094.47:23-0.87:232.29:0211:27Waxing Crescent7Sat
8Sun1:065.12:514.78:02-0.28:381.99:0311:27Waxing Crescent8Sun
9Mon2:094.43:365.18:420.410:041.69:0311:26First Quarter9Mon
10Tue3:293.64:245.49:261.111:291.09:0411:26First Quarter10Tue
11Wed5:093.25:155.710:151.79:0411:26First Quarter11Wed
12Thu6:563.06:075.912:450.411:13 AM2.29:0511:25Waxing Gibbous12Thu
13Fri8:293.27:006.11:49-0.212:162.69:0611:25Waxing Gibbous13Fri
14Sat9:313.57:516.22:43-0.61:202.79:0611:24Waxing Gibbous14Sat
15Sun10:173.68:396.33:29-0.92:192.79:0711:24Waxing Gibbous15Sun
16Mon10:563.89:236.24:11-1.03:102.79:0811:24Full Moon16Mon
17Tue11:323.910:046.14:51-1.03:562.69:0811:23Full Moon17Tue
18Wed12:053.95:27-0.84:392.59:0911:22Full Moon18Wed
19Thu12:364.06:01-0.65:232.49:1011:22Full Moon19Thu
20Fri1:074.16:32-0.36:082.39:1011:21Waning Gibbous20Fri
21Sat1:374.27:000.16:562.39:1111:21Waning Gibbous21Sat
22Sun12:384.62:084.37:270.57:492.29:1211:20Waning Gibbous22Sun
23Mon1:224.02:404.47:531.08:532.29:1211:19Waning Gibbous23Mon
24Tue2:153.53:174.68:181.510:162.09:1311:19Third Quarter24Tue
25Wed3:363.03:594.78:442.011:401.69:1411:18Third Quarter25Wed
26Thu5:362.84:464.99:182.49:1511:17Third Quarter26Thu
27Fri7:482.95:375.112:501.110:17 AM2.89:1511:17Third Quarter27Fri
28Sat8:563.16:295.41:440.611:35 AM3.09:1611:16Waning Crescent28Sat
29Sun9:303.37:205.82:280.112:453.09:1711:15Waning Crescent29Sun
30Mon9:593.58:096.13:07-0.41:462.89:1811:14Waning Crescent30Mon
31Tue10:273.78:556.43:44-0.82:392.69:1811:13Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

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What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 12:25 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 Port San Luis, CA?

Port San Luis, CA is currently in a transitional phase. Tonight's moon is 62% 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 Port San Luis, 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 Port San Luis, CA?

Tide predictions for Port San Luis, 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 Port San Luis, CA?

Tide data for Port San Luis, CA is sourced from NOAA Station #9412110. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9412110.

What is the moon phase in Port San Luis, CA tonight?

Tonight the moon over Port San Luis, CA is Third Quarter (62% illuminated). This places Port San Luis, 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