Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 11:42 pm (1.5 ft)
Next high tide : in 1h 40m at 4:35 pm (5.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:074.812:494.47:021.47:170.37:015:31Waxing Crescent1Sun
2Mon1:574.92:033.78:211.38:070.97:015:32First Quarter2Mon
3Tue2:545.13:393.39:511.09:071.47:005:33First Quarter3Tue
4Wed3:545.25:213.211:130.510:171.86:595:34First Quarter4Wed
5Thu4:545.46:483.312:220.06:585:35Waxing Gibbous5Thu
6Fri5:525.57:513.61:18-0.46:575:36Waxing Gibbous6Fri
7Sat6:455.68:373.812:312.12:04-0.76:565:37Waxing Gibbous7Sat
8Sun7:325.79:153.91:252.02:45-0.86:555:38Waxing Gibbous8Sun
9Mon8:135.79:494.02:111.93:21-0.86:555:39Full Moon9Mon
10Tue8:525.610:214.12:521.83:55-0.76:545:40Full Moon10Tue
11Wed9:285.410:514.13:311.74:26-0.56:535:41Full Moon11Wed
12Thu10:035.211:214.24:091.74:56-0.26:525:42Full Moon12Thu
13Fri10:394.811:514.24:481.65:240.16:515:43Waning Gibbous13Fri
14Sat11:174.45:291.65:520.46:495:44Waning Gibbous14Sat
15Sun12:224.211:57 AM4.06:131.66:190.86:485:45Waning Gibbous15Sun
16Mon12:554.212:433.57:041.76:471.36:475:46Waning Gibbous16Mon
17Tue1:324.21:463.18:111.67:181.76:465:47Third Quarter17Tue
18Wed2:184.23:232.79:351.58:012.16:455:48Third Quarter18Wed
19Thu3:144.35:162.710:551.19:132.46:445:49Third Quarter19Thu
20Fri4:144.56:412.911:580.710:352.56:435:50Third Quarter20Fri
21Sat5:114.77:293.212:470.26:425:51Waning Crescent21Sat
22Sun6:055.18:043.51:29-0.36:405:52Waning Crescent22Sun
23Mon6:545.48:363.812:422.22:08-0.76:395:53Waning Crescent23Mon
24Tue7:415.79:084.11:321.82:45-1.06:385:53Waning Crescent24Tue
25Wed8:275.99:434.42:201.53:23-1.16:375:54New Moon25Wed
26Thu9:135.910:194.73:081.14:01-1.06:365:55New Moon26Thu
27Fri10:015.710:574.93:580.84:40-0.86:345:56New Moon27Fri
28Sat10:535.311:385.14:510.65:20-0.36:335:57Waxing Crescent28Sat
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 8:08 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 50% 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 (50% 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