Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 35m at 8:53 am (0.7 ft)
Next high tide : 3:57 pm (4.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:283.99:416.44:08-0.83:241.75:498:12New Moon1Thu
2Fri11:253.910:226.54:55-1.24:081.95:498:13New Moon2Fri
3Sat12:233.95:45-1.54:572.25:488:13New Moon3Sat
4Sun1:223.96:36-1.65:522.45:488:14Waxing Crescent4Sun
5Mon2:244.07:28-1.46:542.65:488:14Waxing Crescent5Mon
6Tue12:525.83:284.18:23-1.28:082.65:488:15Waxing Crescent6Tue
7Wed1:525.24:294.39:20-0.89:372.65:488:15First Quarter7Wed
8Thu3:044.65:244.610:19-0.311:092.25:488:16First Quarter8Thu
9Fri4:264.16:124.911:150.15:488:16First Quarter9Fri
10Sat5:483.86:565.112:271.712:070.65:478:17First Quarter10Sat
11Sun7:073.67:345.41:311.112:541.05:478:17Waxing Gibbous11Sun
12Mon8:173.58:085.52:250.61:371.45:478:18Waxing Gibbous12Mon
13Tue9:163.58:405.73:090.12:151.85:478:18Waxing Gibbous13Tue
14Wed10:073.59:095.73:49-0.22:492.15:478:18Waxing Gibbous14Wed
15Thu10:533.69:385.74:26-0.43:212.35:488:19Full Moon15Thu
16Fri11:383.610:085.75:01-0.53:542.55:488:19Full Moon16Fri
17Sat12:213.65:36-0.64:272.75:488:19Full Moon17Sat
18Sun1:033.66:12-0.55:042.85:488:20Full Moon18Sun
19Mon1:463.66:48-0.45:462.95:488:20Waning Gibbous19Mon
20Tue2:313.67:25-0.36:333.05:488:20Waning Gibbous20Tue
21Wed12:244.93:193.78:04-0.17:283.05:498:20Waning Gibbous21Wed
22Thu1:074.64:053.98:440.18:413.05:498:21Waning Gibbous22Thu
23Fri1:584.24:474.19:280.410:122.85:498:21Third Quarter23Fri
24Sat3:063.75:244.410:130.711:342.35:498:21Third Quarter24Sat
25Sun4:343.45:594.810:591.05:508:21Third Quarter25Sun
26Mon6:013.36:345.212:391.711:45 AM1.35:508:21Third Quarter26Mon
27Tue7:223.37:125.71:341.012:321.55:508:21Waning Crescent27Tue
28Wed8:323.57:536.12:240.21:201.85:518:21Waning Crescent28Wed
29Thu9:313.78:356.53:10-0.52:102.05:518:21Waning Crescent29Thu
30Fri10:263.89:206.83:57-1.13:002.15:528:21New 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 12:25 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 61% 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 Third Quarter (61% 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