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 18m 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 - Jul 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:353.47:555.92:260.11:221.95:528:21Waxing Gibbous1Sun
2Mon9:373.58:336.03:13-0.32:082.25:528:21Waxing Gibbous2Mon
3Tue10:293.69:096.03:56-0.62:502.55:538:21Full Moon3Tue
4Wed11:153.79:446.04:35-0.73:292.65:538:21Full Moon4Wed
5Thu11:583.710:185.85:13-0.84:082.75:548:21Full Moon5Thu
6Fri12:373.75:50-0.74:472.85:548:20Full Moon6Fri
7Sat1:153.76:25-0.65:282.85:558:20Waning Gibbous7Sat
8Sun1:533.87:00-0.46:132.85:558:20Waning Gibbous8Sun
9Mon12:075.12:323.87:34-0.17:022.85:568:20Waning Gibbous9Mon
10Tue12:464.73:133.98:090.28:012.85:578:19Waning Gibbous10Tue
11Wed1:304.33:544.18:450.59:162.75:578:19Third Quarter11Wed
12Thu2:243.84:334.39:230.910:452.55:588:19Third Quarter12Thu
13Fri3:403.45:114.610:041.35:588:18Third Quarter13Fri
14Sat5:143.15:484.912:012.010:48 AM1.75:598:18Third Quarter14Sat
15Sun6:473.06:265.31:021.411:36 AM2.06:008:17Waning Crescent15Sun
16Mon8:073.27:075.71:530.712:262.26:008:17Waning Crescent16Mon
17Tue9:073.47:506.12:380.01:182.46:018:16Waning Crescent17Tue
18Wed9:563.68:346.43:21-0.62:102.56:028:16Waning Crescent18Wed
19Thu10:413.89:206.74:04-1.03:022.46:028:15New Moon19Thu
20Fri11:264.010:076.84:48-1.33:542.36:038:15New Moon20Fri
21Sat12:114.15:33-1.54:492.26:048:14New Moon21Sat
22Sun12:554.36:17-1.45:472.16:058:13Waxing Crescent22Sun
23Mon1:404.57:02-1.16:502.16:058:13Waxing Crescent23Mon
24Tue12:435.82:274.77:46-0.67:582.06:068:12Waxing Crescent24Tue
25Wed1:435.13:184.98:310.09:171.86:078:11First Quarter25Wed
26Thu2:534.34:105.19:190.710:441.56:078:11First Quarter26Thu
27Fri4:193.75:035.310:121.36:088:10First Quarter27Fri
28Sat5:573.45:545.512:051.011:09 AM1.96:098:09First Quarter28Sat
29Sun7:333.46:455.71:150.512:082.36:108:08Waxing Gibbous29Sun
30Mon8:473.57:325.82:130.11:072.56:108:07Waxing Gibbous30Mon
31Tue9:403.78:165.83:00-0.22:002.76:118:07Waxing Gibbous31Tue
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