Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:47 pm (2.8 ft)
Next high tide : in 4h 45m at 1:41 pm (3.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:594.98:505.02:370.52:541.56:586:47Waning Crescent1Sun
2Mon9:265.19:304.93:110.73:311.26:586:45Waning Crescent2Mon
3Tue9:515.210:084.83:401.04:060.96:596:44New Moon3Tue
4Wed10:155.210:464.64:061.34:400.87:006:42New Moon4Wed
5Thu10:395.311:254.44:321.65:160.77:016:41New Moon5Thu
6Fri11:055.34:571.95:520.77:016:40New Moon6Fri
7Sat12:074.211:32 AM5.25:242.26:320.77:026:38Waxing Crescent7Sat
8Sun12:524.012:025.15:522.47:150.87:036:37Waxing Crescent8Sun
9Mon1:463.712:365.06:232.78:040.97:046:36Waxing Crescent9Mon
10Tue2:533.61:174.87:013.09:040.97:056:34Waxing Crescent10Tue
11Wed4:213.52:134.67:573.210:130.97:066:33First Quarter11Wed
12Thu5:363.73:314.59:393.311:170.87:066:32First Quarter12Thu
13Fri6:264.04:554.511:193.07:076:30First Quarter13Fri
14Sat7:024.36:074.612:110.712:272.67:086:29First Quarter14Sat
15Sun7:354.77:104.812:580.61:222.07:096:28Waxing Gibbous15Sun
16Mon8:065.18:085.01:400.62:111.37:106:26Waxing Gibbous16Mon
17Tue8:385.69:015.12:200.62:570.67:116:25Waxing Gibbous17Tue
18Wed9:136.09:535.12:590.83:440.07:116:24Full Moon18Wed
19Thu9:496.410:475.03:381.04:32-0.47:126:23Full Moon19Thu
20Fri10:286.511:434.84:191.35:23-0.77:136:21Full Moon20Fri
21Sat11:116.55:021.76:16-0.77:146:20Waning Gibbous21Sat
22Sun12:444.511:57 AM6.45:502.17:11-0.67:156:19Waning Gibbous22Sun
23Mon1:494.312:486.06:432.48:11-0.47:166:18Waning Gibbous23Mon
24Tue3:024.21:465.57:472.79:16-0.17:176:17Third Quarter24Tue
25Wed4:214.22:575.09:112.910:250.27:186:16Third Quarter25Wed
26Thu5:304.44:194.610:492.811:300.47:186:14Third Quarter26Thu
27Fri6:264.65:404.412:102.47:196:13Third Quarter27Fri
28Sat7:124.86:504.312:260.71:142.07:206:12Waning Crescent28Sat
29Sun7:485.17:504.31:140.92:041.57:216:11Waning Crescent29Sun
30Mon8:195.28:404.31:541.12:451.17:226:10Waning Crescent30Mon
31Tue8:465.49:234.32:271.43:210.87:236:09Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 3:44 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 spring phase. Tonight's moon is 93% 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 Gibbous (93% 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