Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 44m at 8:20 am (0.3 ft)
Next high tide : 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 - Oct 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:173.63:344.59:263.411:431.06:586:46Third Quarter1Sun
2Mon7:183.84:564.511:193.36:596:44Third Quarter2Mon
3Tue7:524.06:044.712:390.712:293.17:006:43Third Quarter3Tue
4Wed8:184.37:035.01:250.51:202.77:016:41Waning Crescent4Wed
5Thu8:424.57:555.32:040.32:052.27:016:40Waning Crescent5Thu
6Fri9:074.88:435.42:400.22:471.67:026:39Waning Crescent6Fri
7Sat9:345.29:315.53:150.23:301.17:036:37New Moon7Sat
8Sun10:045.510:205.43:490.34:160.67:046:36New Moon8Sun
9Mon10:375.811:125.24:250.75:040.17:056:34New Moon9Mon
10Tue11:136.15:021.15:56-0.17:056:33Waxing Crescent10Tue
11Wed12:094.811:53 AM6.15:421.66:51-0.37:066:32Waxing Crescent11Wed
12Thu1:134.412:386.06:252.17:52-0.27:076:31Waxing Crescent12Thu
13Fri2:284.11:295.87:152.69:01-0.17:086:29Waxing Crescent13Fri
14Sat3:593.92:325.58:213.010:170.07:096:28First Quarter14Sat
15Sun5:294.13:525.110:003.211:290.07:106:27First Quarter15Sun
16Mon6:394.35:165.011:393.07:106:25First Quarter16Mon
17Tue7:294.66:304.912:320.112:542.67:116:24Waxing Gibbous17Tue
18Wed8:084.87:334.91:250.11:512.17:126:23Waxing Gibbous18Wed
19Thu8:415.08:264.92:090.32:371.67:136:22Waxing Gibbous19Thu
20Fri9:085.29:114.82:470.53:171.27:146:20Waxing Gibbous20Fri
21Sat9:335.39:524.73:180.83:530.97:156:19Full Moon21Sat
22Sun9:575.410:324.53:461.24:270.77:166:18Full Moon22Sun
23Mon10:195.411:134.34:121.55:010.57:166:17Full Moon23Mon
24Tue10:435.511:574.14:381.95:370.47:176:16Full Moon24Tue
25Wed11:085.45:032.36:140.47:186:15Waning Gibbous25Wed
26Thu12:453.911:34 AM5.35:302.66:550.57:196:14Waning Gibbous26Thu
27Fri1:403.712:045.25:592.97:400.57:206:12Waning Gibbous27Fri
28Sat2:503.612:395.06:323.28:330.77:216:11Waning Gibbous28Sat
29Sun4:253.61:244.77:193.49:380.77:226:10Third Quarter29Sun
30Mon5:453.82:294.58:523.610:440.77:236:09Third Quarter30Mon
31Tue6:314.03:584.310:553.411:420.67:246:08Third Quarter31Tue
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 11:50 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 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