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 7m 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 - Aug 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:283.68:006.52:47-0.61:312.66:128:06Waxing Gibbous1Thu
2Fri10:113.88:516.83:33-1.12:302.56:138:05Waxing Gibbous2Fri
3Sat10:534.19:426.94:18-1.43:262.36:148:04Full Moon3Sat
4Sun11:344.310:326.85:03-1.54:212.16:148:03Full Moon4Sun
5Mon12:154.55:46-1.45:181.96:158:02Full Moon5Mon
6Tue12:574.76:29-1.06:171.86:168:01Waning Gibbous6Tue
7Wed12:175.91:404.97:10-0.57:201.76:178:00Waning Gibbous7Wed
8Thu1:135.22:255.07:510.28:301.66:187:59Waning Gibbous8Thu
9Fri2:174.43:135.18:330.99:511.46:187:58Third Quarter9Fri
10Sat3:373.74:055.29:201.611:171.26:197:57Third Quarter10Sat
11Sun5:193.35:005.210:162.26:207:56Third Quarter11Sun
12Mon7:063.35:545.312:340.811:21 AM2.66:217:54Third Quarter12Mon
13Tue8:303.56:485.41:380.412:292.96:217:53Waning Crescent13Tue
14Wed9:213.77:375.52:280.11:292.96:227:52Waning Crescent14Wed
15Thu9:573.88:205.63:100.02:172.86:237:51Waning Crescent15Thu
16Fri10:263.98:585.63:45-0.22:562.76:247:50Waning Crescent16Fri
17Sat10:534.09:335.74:18-0.23:312.56:247:49New Moon17Sat
18Sun11:184.010:075.74:47-0.24:052.46:257:47New Moon18Sun
19Mon11:444.110:415.55:16-0.14:412.26:267:46New Moon19Mon
20Tue12:104.25:430.15:192.16:277:45New Moon20Tue
21Wed12:364.36:100.36:012.06:277:44Waxing Crescent21Wed
22Thu1:034.46:360.66:462.06:287:42Waxing Crescent22Thu
23Fri12:344.61:324.67:011.07:381.96:297:41Waxing Crescent23Fri
24Sat1:224.12:044.77:281.58:421.76:307:40Waxing Crescent24Sat
25Sun2:273.62:444.97:572.010:031.56:307:39First Quarter25Sun
26Mon4:043.23:375.18:342.411:261.06:317:37First Quarter26Mon
27Tue6:033.24:415.39:372.86:327:36First Quarter27Tue
28Wed7:383.45:475.612:370.511:08 AM3.06:337:35First Quarter28Wed
29Thu8:313.76:516.01:36-0.112:292.96:337:33Waxing Gibbous29Thu
30Fri9:104.07:506.32:26-0.61:362.66:347:32Waxing Gibbous30Fri
31Sat9:444.38:456.53:11-0.92:342.26:357:31Waxing Gibbous31Sat
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