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 1h 25m at 8:52 pm (2.5 ft)
Next high tide (tomorrow) : 2:06 am (3.9 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 - Apr 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:454.87:133.411:49-0.211:112.86:497:24First Quarter1Sun
2Mon5:094.87:563.712:52-0.56:477:25First Quarter2Mon
3Tue6:245.08:314.112:352.41:45-0.76:467:26Waxing Gibbous3Tue
4Wed7:315.29:034.41:401.92:30-0.86:447:26Waxing Gibbous4Wed
5Thu8:295.39:344.82:341.33:11-0.76:437:27Waxing Gibbous5Thu
6Fri9:225.310:065.13:240.73:49-0.56:427:28Full Moon6Fri
7Sat10:135.110:395.44:120.24:25-0.16:407:29Full Moon7Sat
8Sun11:044.811:135.55:00-0.15:010.46:397:30Full Moon8Sun
9Mon11:564.411:475.55:48-0.35:361.06:387:30Full Moon9Mon
10Tue12:533.96:37-0.46:111.56:367:31Waning Gibbous10Tue
11Wed12:235.31:553.67:28-0.36:472.16:357:32Waning Gibbous11Wed
12Thu1:005.03:133.38:24-0.17:262.56:347:33Waning Gibbous12Thu
13Fri1:424.74:543.29:290.18:222.96:327:34Third Quarter13Fri
14Sat2:364.36:273.410:420.310:183.16:317:35Third Quarter14Sat
15Sun3:534.07:253.611:500.36:307:35Third Quarter15Sun
16Mon5:173.97:593.812:032.912:460.36:287:36Third Quarter16Mon
17Tue6:274.08:243.91:072.51:320.26:277:37Waning Crescent17Tue
18Wed7:244.18:454.11:522.12:080.26:267:38Waning Crescent18Wed
19Thu8:114.29:064.32:291.72:400.36:257:39Waning Crescent19Thu
20Fri8:534.29:274.63:021.33:080.46:237:39Waning Crescent20Fri
21Sat9:334.29:494.83:360.93:340.66:227:40New Moon21Sat
22Sun10:134.210:125.14:110.54:010.96:217:41New Moon22Sun
23Mon10:564.010:385.34:480.14:291.26:207:42New Moon23Mon
24Tue11:443.911:085.45:28-0.24:581.66:197:43New Moon24Tue
25Wed12:373.76:12-0.45:301.96:177:43Waxing Crescent25Wed
26Thu1:383.47:00-0.56:062.36:167:44Waxing Crescent26Thu
27Fri12:205.42:543.37:54-0.56:502.66:157:45Waxing Crescent27Fri
28Sat1:065.24:243.38:57-0.57:532.96:147:46Waxing Crescent28Sat
29Sun2:065.05:413.510:08-0.49:363.06:137:47First Quarter29Sun
30Mon3:244.76:353.911:16-0.511:222.76:127:48First Quarter30Mon
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 11:29 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