Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 6:46 am (-0.6 ft)
Next high tide : in 5h 50m at 11:09 pm (5.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:415.310:425.94:28-0.34:350.86:367:29Full Moon1Thu
2Fri11:205.611:355.55:070.05:290.56:367:28Full Moon2Fri
3Sat12:015.85:470.46:260.46:377:26Waning Gibbous3Sat
4Sun12:325.012:445.96:281.07:250.46:387:25Waning Gibbous4Sun
5Mon1:354.41:325.87:121.58:310.56:387:24Waning Gibbous5Mon
6Tue2:494.02:265.68:012.19:480.66:397:22Third Quarter6Tue
7Wed4:223.73:325.39:042.511:090.66:407:21Third Quarter7Wed
8Thu5:563.74:465.210:322.86:417:19Third Quarter8Thu
9Fri7:123.95:575.112:210.511:57 AM2.86:417:18Third Quarter9Fri
10Sat8:054.17:005.21:200.41:052.66:427:17Waning Crescent10Sat
11Sun8:424.37:525.22:080.31:582.36:437:15Waning Crescent11Sun
12Mon9:124.48:365.22:470.42:392.06:447:14Waning Crescent12Mon
13Tue9:374.69:145.23:190.53:161.76:447:12Waning Crescent13Tue
14Wed10:014.79:495.13:470.63:491.56:457:11New Moon14Wed
15Thu10:234.810:244.94:120.84:231.36:467:09New Moon15Thu
16Fri10:474.911:004.74:361.14:581.16:477:08New Moon16Fri
17Sat11:115.011:394.55:011.35:351.06:477:06New Moon17Sat
18Sun11:375.15:261.66:151.06:487:05Waxing Crescent18Sun
19Mon12:214.212:065.15:522.06:581.06:497:04Waxing Crescent19Mon
20Tue1:093.912:385.16:192.37:481.06:497:02Waxing Crescent20Tue
21Wed2:093.61:175.06:502.68:501.06:507:01Waxing Crescent21Wed
22Thu3:323.42:084.97:302.910:041.06:516:59First Quarter22Thu
23Fri5:103.43:184.98:393.111:160.86:526:58First Quarter23Fri
24Sat6:223.64:414.910:313.16:526:56First Quarter24Sat
25Sun7:094.05:555.112:160.511:57 AM2.86:536:55First Quarter25Sun
26Mon7:454.37:005.31:070.31:032.36:546:53Waxing Gibbous26Mon
27Tue8:194.87:595.51:520.11:581.66:556:52Waxing Gibbous27Tue
28Wed8:525.28:545.62:340.12:501.06:556:51Waxing Gibbous28Wed
29Thu9:265.79:465.53:130.23:390.46:566:49Full Moon29Thu
30Fri10:026.010:395.33:520.54:290.06:576:48Full Moon30Fri
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 2:57 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 97% 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 Full Moon (97% 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