Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 37m at 6:46 am (-0.6 ft)
Next high tide : 1:41 pm (3.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:293.45:32-0.74:002.85:498:12Full Moon1Fri
2Sat1:173.46:11-0.84:372.95:498:12Full Moon2Sat
3Sun2:063.46:52-0.85:203.05:498:13Waning Gibbous3Sun
4Mon2:563.47:35-0.86:163.15:488:13Waning Gibbous4Mon
5Tue12:245.33:443.68:18-0.67:253.15:488:14Waning Gibbous5Tue
6Wed1:164.94:263.89:04-0.48:542.95:488:14Third Quarter6Wed
7Thu2:204.45:024.29:51-0.110:342.55:488:15Third Quarter7Thu
8Fri3:423.95:374.710:370.311:561.85:488:15Third Quarter8Fri
9Sat5:133.56:135.211:220.85:488:16Third Quarter9Sat
10Sun6:443.36:505.71:041.012:071.25:488:16Waning Crescent10Sun
11Mon8:083.37:306.22:020.112:541.75:478:17Waning Crescent11Mon
12Tue9:183.48:136.52:54-0.71:422.15:478:17Waning Crescent12Tue
13Wed10:203.68:576.73:44-1.22:322.35:478:18New Moon13Wed
14Thu11:173.79:426.74:32-1.63:222.55:478:18New Moon14Thu
15Fri12:113.75:20-1.74:142.65:488:18New Moon15Fri
16Sat1:023.86:08-1.65:092.75:488:19New Moon16Sat
17Sun1:513.86:54-1.46:072.75:488:19Waxing Crescent17Sun
18Mon12:055.82:403.97:38-1.07:082.75:488:19Waxing Crescent18Mon
19Tue12:545.23:284.08:22-0.58:162.75:488:20Waxing Crescent19Tue
20Wed1:464.64:154.29:050.09:382.65:488:20First Quarter20Wed
21Thu2:464.04:564.49:460.511:042.35:488:20First Quarter21Thu
22Fri4:023.45:334.610:271.15:498:20First Quarter22Fri
23Sat5:303.06:074.812:191.811:05 AM1.65:498:21First Quarter23Sat
24Sun7:042.96:405.01:211.311:43 AM2.05:498:21Waxing Gibbous24Sun
25Mon8:283.07:125.32:100.712:212.45:498:21Waxing Gibbous25Mon
26Tue9:303.17:465.52:500.31:022.65:508:21Waxing Gibbous26Tue
27Wed10:173.38:215.73:27-0.11:452.85:508:21Waxing Gibbous27Wed
28Thu10:583.48:565.84:03-0.52:272.95:508:21Full Moon28Thu
29Fri11:363.59:336.04:39-0.73:092.95:518:21Full Moon29Fri
30Sat12:133.55:16-0.93:512.95:518:21Full Moon30Sat
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 10:13 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 93% 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 Waning Gibbous (93% 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