Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 12:06 pm (2.5 ft)
Next high tide : in 5h 53m at 8:29 am (3.1 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:074.42:164.77:340.88:311.86:118:06Waxing Crescent1Tue
2Wed2:053.93:014.98:101.39:501.66:128:05First Quarter2Wed
3Thu3:243.43:545.28:541.711:121.26:138:04First Quarter3Thu
4Fri5:043.24:535.49:542.16:148:03First Quarter4Fri
5Sat6:393.25:535.812:240.611:07 AM2.36:158:03First Quarter5Sat
6Sun7:543.56:526.11:260.112:192.46:158:02Waxing Gibbous6Sun
7Mon8:473.87:496.32:19-0.41:262.26:168:01Waxing Gibbous7Mon
8Tue9:314.18:426.53:06-0.82:262.06:178:00Waxing Gibbous8Tue
9Wed10:124.49:316.53:49-0.93:211.86:187:58Full Moon9Wed
10Thu10:524.710:196.34:31-0.94:131.56:187:57Full Moon10Thu
11Fri11:314.911:086.05:12-0.75:051.46:197:56Full Moon11Fri
12Sat12:115.05:52-0.45:581.36:207:55Waning Gibbous12Sat
13Sun12:515.16:300.16:521.36:217:54Waning Gibbous13Sun
14Mon12:474.91:325.17:070.67:491.46:217:53Waning Gibbous14Mon
15Tue1:424.32:155.07:451.28:541.46:227:52Waning Gibbous15Tue
16Wed2:483.73:044.98:251.810:121.46:237:51Third Quarter16Wed
17Thu4:153.44:004.99:142.311:331.36:247:50Third Quarter17Thu
18Fri5:553.25:014.810:212.66:247:48Third Quarter18Fri
19Sat7:233.46:004.912:421.111:35 AM2.86:257:47Third Quarter19Sat
20Sun8:203.66:535.11:370.812:402.86:267:46Waning Crescent20Sun
21Mon8:573.77:405.22:200.51:322.66:277:45Waning Crescent21Mon
22Tue9:253.98:205.42:550.32:152.46:277:43Waning Crescent22Tue
23Wed9:514.18:585.53:260.22:542.26:287:42Waning Crescent23Wed
24Thu10:174.29:335.63:550.13:312.06:297:41New Moon24Thu
25Fri10:434.410:095.54:240.14:091.86:307:40New Moon25Fri
26Sat11:104.610:485.34:520.24:491.66:307:38New Moon26Sat
27Sun11:394.811:295.15:220.45:321.46:317:37New Moon27Sun
28Mon12:115.05:520.76:191.36:327:36Waxing Crescent28Mon
29Tue12:154.712:455.16:241.17:111.26:337:34Waxing Crescent29Tue
30Wed1:074.31:255.26:581.58:121.16:337:33Waxing Crescent30Wed
31Thu2:113.82:125.37:361.99:251.06:347:32First Quarter31Thu
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 10:17 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 Port San Luis, CA?

Port San Luis, CA is currently in a spring phase. Tonight's moon is 18% 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 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 Waning Crescent (18% illuminated). This places Port San Luis, 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