Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:52 pm (2.5 ft)
Next high tide : in 6h 39m at 3:21 pm (4.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:063.910:25 AM6.34:182.65:59-1.47:115:01Waning Gibbous1Tue
2Wed12:534.011:16 AM5.95:182.66:44-1.17:115:02Waning Gibbous2Wed
3Thu1:424.112:125.46:262.67:31-0.67:115:03Waning Gibbous3Thu
4Fri2:324.41:164.67:472.48:20-0.17:115:04Third Quarter4Fri
5Sat3:234.72:383.99:212.19:120.57:115:05Third Quarter5Sat
6Sun4:115.14:133.410:491.510:051.17:115:06Third Quarter6Sun
7Mon4:585.45:513.212:020.77:115:06Third Quarter7Mon
8Tue5:435.77:173.31:030.17:115:07Waning Crescent8Tue
9Wed6:286.08:233.51:53-0.57:115:08Waning Crescent9Wed
10Thu7:106.19:163.612:442.32:37-0.87:115:09Waning Crescent10Thu
11Fri7:506.110:013.71:322.53:18-1.07:115:10New Moon11Fri
12Sat8:286.110:413.82:172.63:57-1.17:115:11New Moon12Sat
13Sun9:056.011:183.82:582.64:34-1.07:115:12New Moon13Sun
14Mon9:425.811:543.83:382.65:09-0.87:115:13New Moon14Mon
15Tue10:185.54:182.65:43-0.67:105:14Waxing Crescent15Tue
16Wed12:293.810:55 AM5.15:012.66:15-0.37:105:15Waxing Crescent16Wed
17Thu1:043.811:33 AM4.75:482.66:470.17:105:16Waxing Crescent17Thu
18Fri1:413.912:144.26:422.67:180.57:095:17Waxing Crescent18Fri
19Sat2:194.01:033.67:512.57:511.07:095:18First Quarter19Sat
20Sun3:004.12:173.19:222.38:281.47:095:19First Quarter20Sun
21Mon3:414.44:052.810:491.89:121.97:085:20First Quarter21Mon
22Tue4:224.65:572.711:561.210:052.27:085:21First Quarter22Tue
23Wed5:034.97:222.912:480.67:075:22Waxing Gibbous23Wed
24Thu5:465.38:163.21:310.07:075:23Waxing Gibbous24Thu
25Fri6:315.78:563.412:002.62:11-0.67:065:24Waxing Gibbous25Fri
26Sat7:166.09:333.612:552.52:50-1.17:055:25Waxing Gibbous26Sat
27Sun8:016.310:103.81:452.43:30-1.57:055:26Full Moon27Sun
28Mon8:466.510:484.02:352.34:11-1.67:045:27Full Moon28Mon
29Tue9:326.511:274.13:252.14:52-1.67:045:28Full Moon29Tue
30Wed10:216.24:191.95:32-1.37:035:29Waning Gibbous30Wed
31Thu12:074.311:13 AM5.75:171.76:13-0.97:025:30Waning Gibbous31Thu
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 6:06 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 71% 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 Waning Gibbous (71% 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