Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:52 pm (2.5 ft)
Next high tide : in 2h 31m at 3:21 pm (4.2 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:526.09:184.41:481.72:54-1.39:389:05Waxing Gibbous1Wed
2Thu8:426.09:504.72:401.13:31-1.19:369:06Full Moon2Thu
3Fri9:325.610:235.03:310.74:06-0.79:359:07Full Moon3Fri
4Sat10:225.110:575.34:220.44:40-0.19:349:08Full Moon4Sat
5Sun11:144.511:325.35:150.25:120.59:329:09Waning Gibbous5Sun
6Mon12:113.96:100.15:441.29:319:10Waning Gibbous6Mon
7Tue12:085.31:183.37:080.26:141.89:309:11Waning Gibbous7Tue
8Wed12:485.12:552.98:180.36:432.49:289:11Third Quarter8Wed
9Thu1:374.89:420.49:279:12Third Quarter9Thu
10Fri2:444.57:173.111:030.39:463.19:269:13Third Quarter10Fri
11Sat4:064.47:443.412:090.19:249:14Third Quarter11Sat
12Sun6:204.49:043.51:590.010:2310:15Waning Crescent12Sun
13Mon7:194.69:223.61:322.62:37-0.210:2110:16Waning Crescent13Mon
14Tue8:054.79:393.82:142.23:08-0.210:2010:16Waning Crescent14Tue
15Wed8:444.89:564.02:491.93:34-0.210:1910:17Waning Crescent15Wed
16Thu9:204.810:154.23:231.53:580.010:1710:18Waning Crescent16Thu
17Fri9:554.710:344.53:571.24:210.210:1610:19New Moon17Fri
18Sat10:324.510:564.74:320.94:440.510:1410:20New Moon18Sat
19Sun11:114.211:194.95:100.65:070.810:1310:21New Moon19Sun
20Mon11:553.911:445.15:510.45:301.210:1210:21Waxing Crescent20Mon
21Tue12:463.56:360.25:541.710:1010:22Waxing Crescent21Tue
22Wed12:145.21:483.17:260.16:182.110:0910:23Waxing Crescent22Wed
23Thu12:505.23:192.88:280.16:442.410:0710:24Waxing Crescent23Thu
24Fri1:365.19:460.010:0610:25First Quarter24Fri
25Sat2:405.07:133.111:09-0.29:213.010:0510:25First Quarter25Sat
26Sun4:074.97:453.412:18-0.410:0310:26First Quarter26Sun
27Mon5:335.08:133.71:14-0.710:0210:27First Quarter27Mon
28Tue6:475.18:404.112:552.32:01-0.810:0010:28Waxing Gibbous28Tue
29Wed7:515.29:084.61:571.62:41-0.79:5910:29Waxing Gibbous29Wed
30Thu8:475.29:375.02:501.03:18-0.59:5810:29Waxing Gibbous30Thu
31Fri9:395.010:075.33:390.43:52-0.19:5610:30Full Moon31Fri
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 6:06 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 72% 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 Waning Gibbous (72% 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