Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 25m at 2:14 pm (2.6 ft)
Next high tide : 8:41 pm (6.9 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 9:05 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:173.63:344.59:263.411:431.010:059:52Third Quarter1Sun
2Mon7:183.84:564.511:193.310:069:51Third Quarter2Mon
3Tue7:524.06:044.712:390.712:293.110:079:50Third Quarter3Tue
4Wed8:184.37:035.01:250.51:202.710:079:48Waning Crescent4Wed
5Thu8:424.57:555.32:040.32:052.210:089:47Waning Crescent5Thu
6Fri9:074.88:435.42:400.22:471.610:099:45Waning Crescent6Fri
7Sat9:345.29:315.53:150.23:301.110:109:44New Moon7Sat
8Sun10:045.510:205.43:490.34:160.610:109:43New Moon8Sun
9Mon10:375.811:125.24:250.75:040.110:119:41New Moon9Mon
10Tue11:136.15:021.15:56-0.110:129:40New Moon10Tue
11Wed12:094.811:53 AM6.15:421.66:51-0.310:139:39Waxing Crescent11Wed
12Thu1:134.412:386.06:252.17:52-0.210:149:37Waxing Crescent12Thu
13Fri2:284.11:295.87:152.69:01-0.110:159:36Waxing Crescent13Fri
14Sat3:593.92:325.58:213.010:170.010:159:35First Quarter14Sat
15Sun5:294.13:525.110:003.211:290.010:169:33First Quarter15Sun
16Mon6:394.35:165.011:393.010:179:32First Quarter16Mon
17Tue7:294.66:304.912:320.112:542.610:189:31Waxing Gibbous17Tue
18Wed8:084.87:334.91:250.11:512.110:199:30Waxing Gibbous18Wed
19Thu8:415.08:264.92:090.32:371.610:209:29Waxing Gibbous19Thu
20Fri9:085.29:114.82:470.53:171.210:219:27Waxing Gibbous20Fri
21Sat9:335.39:524.73:180.83:530.910:219:26Full Moon21Sat
22Sun9:575.410:324.53:461.24:270.710:229:25Full Moon22Sun
23Mon10:195.411:134.34:121.55:010.510:239:24Full Moon23Mon
24Tue10:435.511:574.14:381.95:370.410:249:23Full Moon24Tue
25Wed11:085.45:032.36:140.410:259:22Waning Gibbous25Wed
26Thu12:453.911:34 AM5.35:302.66:550.510:269:20Waning Gibbous26Thu
27Fri1:403.712:045.25:592.97:400.510:279:19Waning Gibbous27Fri
28Sat2:503.612:395.06:323.28:330.710:289:18Waning Gibbous28Sat
29Sun4:253.61:244.77:193.49:380.710:299:17Waning Gibbous29Sun
30Mon5:453.82:294.58:523.610:440.710:309:16Third Quarter30Mon
31Tue6:314.03:584.310:553.411:420.610:319:15Third 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 5:27 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 5% 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 (5% 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