Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 10:14 am (1.8 ft)
Next high tide : in 4h 35m at 5:10 am (3.0 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:054.35:33-1.44:562.19:1911:12Full Moon1Sun
2Mon12:454.56:14-1.15:522.09:2011:11Waning Gibbous2Mon
3Tue1:244.66:54-0.66:511.99:2111:10Waning Gibbous3Tue
4Wed12:445.32:044.87:310.07:531.89:2111:09Waning Gibbous4Wed
5Thu1:384.62:464.98:070.79:041.89:2211:08Waning Gibbous5Thu
6Fri2:443.83:304.98:441.410:281.69:2311:07Third Quarter6Fri
7Sat4:133.34:185.09:242.011:511.39:2411:06Third Quarter7Sat
8Sun6:073.15:095.010:152.69:2411:05Third Quarter8Sun
9Mon8:033.26:015.11:020.911:21 AM2.99:2511:04Third Quarter9Mon
10Tue9:083.56:525.21:580.512:303.19:2611:03Waning Crescent10Tue
11Wed9:443.67:405.42:420.21:293.19:2711:02Waning Crescent11Wed
12Thu10:123.78:225.63:190.02:163.09:2711:01Waning Crescent12Thu
13Fri10:373.89:005.73:53-0.22:542.89:2811:00Waning Crescent13Fri
14Sat11:023.99:355.84:23-0.33:302.69:2910:59New Moon14Sat
15Sun11:274.010:105.84:53-0.34:072.49:3010:58New Moon15Sun
16Mon11:524.110:465.75:22-0.34:462.29:3010:56New Moon16Mon
17Tue12:184.35:50-0.15:292.19:3110:55New Moon17Tue
18Wed12:454.56:170.16:161.99:3210:54Waxing Crescent18Wed
19Thu12:065.01:134.76:440.57:091.89:3310:53Waxing Crescent19Thu
20Fri12:544.51:454.97:121.18:101.69:3310:52Waxing Crescent20Fri
21Sat1:543.92:235.17:401.69:261.39:3410:50First Quarter21Sat
22Sun3:183.33:115.38:132.210:531.09:3510:49First Quarter22Sun
23Mon5:173.14:125.59:002.79:3610:48First Quarter23Mon
24Tue7:163.35:205.712:120.410:24 AM3.09:3610:46First Quarter24Tue
25Wed8:263.66:286.01:18-0.111:58 AM3.19:3710:45Waxing Gibbous25Wed
26Thu9:073.97:316.32:14-0.61:152.99:3810:44Waxing Gibbous26Thu
27Fri9:414.18:286.53:01-0.92:172.59:3910:43Waxing Gibbous27Fri
28Sat10:144.39:196.53:44-1.03:112.19:3910:41Full Moon28Sat
29Sun10:474.610:076.34:24-0.94:011.79:4010:40Full Moon29Sun
30Mon11:204.810:546.05:02-0.64:511.59:4110:38Full Moon30Mon
31Tue11:545.011:425.45:37-0.25:411.39:4210:37Full Moon31Tue
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 7:42 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 neap phase. Tonight's moon is 41% 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 minimum.

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 Third Quarter (41% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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