Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 19m at 3:19 am (-0.2 ft)
Next high tide : 10:07 am (3.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Apr 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:455.24:083.39:19-0.38:282.46:487:24Third Quarter1Mon
2Tue2:515.05:333.410:34-0.210:072.56:477:25Third Quarter2Tue
3Wed4:134.86:393.711:44-0.311:432.36:467:26Third Quarter3Wed
4Thu5:354.77:294.112:45-0.36:447:27Third Quarter4Thu
5Fri6:484.78:094.412:591.81:37-0.26:437:27Waning Crescent5Fri
6Sat7:514.78:444.81:591.32:21-0.16:417:28Waning Crescent6Sat
7Sun8:464.69:165.02:490.83:000.16:407:29Waning Crescent7Sun
8Mon9:344.59:475.23:340.33:350.46:397:30New Moon8Mon
9Tue10:204.410:165.34:150.04:080.86:377:31New Moon9Tue
10Wed11:054.210:465.34:55-0.14:391.16:367:31New Moon10Wed
11Thu11:503.911:165.25:35-0.25:101.56:357:32New Moon11Thu
12Fri12:373.76:15-0.25:411.86:337:33Waxing Crescent12Fri
13Sat1:283.46:57-0.16:132.16:327:34Waxing Crescent13Sat
14Sun12:204.92:263.27:410.16:482.46:317:35Waxing Crescent14Sun
15Mon12:574.63:413.18:320.37:332.76:307:35Waxing Crescent15Mon
16Tue1:424.35:033.29:330.58:442.86:287:36First Quarter16Tue
17Wed2:414.06:063.310:390.610:332.86:277:37First Quarter17Wed
18Thu4:003.86:503.611:370.611:572.56:267:38First Quarter18Thu
19Fri5:193.87:223.812:260.66:247:39First Quarter19Fri
20Sat6:273.87:494.212:572.11:080.66:237:39Waxing Gibbous20Sat
21Sun7:263.98:154.51:441.61:450.66:227:40Waxing Gibbous21Sun
22Mon8:194.18:414.92:261.02:190.76:217:41Waxing Gibbous22Mon
23Tue9:074.29:105.33:070.42:530.86:207:42Waxing Gibbous23Tue
24Wed9:564.29:425.73:48-0.23:281.06:187:43Full Moon24Wed
25Thu10:454.210:185.94:32-0.64:051.36:177:44Full Moon25Thu
26Fri11:384.010:576.05:19-1.04:451.56:167:44Full Moon26Fri
27Sat12:353.96:08-1.15:291.86:157:45Waning Gibbous27Sat
28Sun1:363.87:00-1.16:202.16:147:46Waning Gibbous28Sun
29Mon12:315.82:433.77:56-1.07:202.36:137:47Waning Gibbous29Mon
30Tue1:275.43:563.88:57-0.88:372.56:127:48Third Quarter30Tue
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 6:43 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 spring phase. Tonight's moon is 91% 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 Waxing Gibbous (91% 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