Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 40m at 9:30 am (1.3 ft)
Next high tide : 4:35 pm (5.0 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Nov 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:415.89:564.12:261.83:400.19:318:15New Moon1Tue
2Wed9:066.010:483.92:512.24:21-0.29:328:14New Moon2Wed
3Thu9:366.111:473.83:192.55:06-0.49:338:13New Moon3Thu
4Fri10:106.13:492.85:55-0.59:348:12Waxing Crescent4Fri
5Sat12:553.610:52 AM6.04:243.16:51-0.49:358:11Waxing Crescent5Sat
6Sun2:203.611:43 AM5.75:113.47:54-0.49:368:10Waxing Crescent6Sun
7Mon3:483.712:485.46:283.69:02-0.39:378:09First Quarter7Mon
8Tue4:444.02:125.08:333.510:05-0.29:388:09First Quarter8Tue
9Wed5:234.33:454.710:233.110:590.09:398:08First Quarter9Wed
10Thu5:574.75:074.611:392.311:470.39:408:07First Quarter10Thu
11Fri6:295.26:204.512:391.59:418:06Waxing Gibbous11Fri
12Sat7:005.77:254.412:290.61:310.79:428:06Waxing Gibbous12Sat
13Sun7:306.18:244.31:071.02:180.19:428:05Waxing Gibbous13Sun
14Mon8:016.39:204.21:431.53:03-0.49:438:04Full Moon14Mon
15Tue8:326.510:154.12:172.03:46-0.79:448:04Full Moon15Tue
16Wed9:046.411:133.92:512.44:30-0.89:458:03Full Moon16Wed
17Thu9:376.33:252.85:14-0.79:468:02Full Moon17Thu
18Fri12:123.810:12 AM6.04:023.15:59-0.59:478:02Waning Gibbous18Fri
19Sat1:153.810:50 AM5.64:423.36:47-0.29:488:01Waning Gibbous19Sat
20Sun2:283.711:32 AM5.25:313.57:380.19:498:01Waning Gibbous20Sun
21Mon3:403.812:224.76:393.68:340.39:508:00Waning Gibbous21Mon
22Tue4:333.91:254.38:263.59:290.69:518:00Third Quarter22Tue
23Wed5:094.12:493.910:133.210:170.89:528:00Third Quarter23Wed
24Thu5:374.34:123.711:232.810:581.09:537:59Third Quarter24Thu
25Fri6:014.65:263.612:152.29:547:59Third Quarter25Fri
26Sat6:234.96:313.612:581.69:557:59Waning Crescent26Sat
27Sun6:455.37:303.612:051.51:350.99:567:58Waning Crescent27Sun
28Mon7:085.68:223.712:361.82:120.39:577:58Waning Crescent28Mon
29Tue7:346.09:123.71:072.12:49-0.29:587:58Waning Crescent29Tue
30Wed8:036.210:043.71:392.43:29-0.79:597:58New Moon30Wed
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 1:02 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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