Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 27m at 8:52 pm (2.5 ft)
Next high tide (tomorrow) : 2:06 am (3.9 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 - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:013.31:035.46:193.09:110.510:059:53Waning Gibbous1Sun
2Mon2:035.310:320.410:059:51Third Quarter2Mon
3Tue6:423.63:265.28:433.511:420.210:069:50Third Quarter3Tue
4Wed7:153.94:565.211:063.410:079:49Third Quarter4Wed
5Thu7:424.26:135.312:390.012:282.810:089:47Waning Crescent5Thu
6Fri8:094.67:205.41:27-0.11:302.110:099:46Waning Crescent6Fri
7Sat8:365.08:195.42:08-0.12:241.410:099:44Waning Crescent7Sat
8Sun9:055.59:145.32:460.23:130.710:109:43Waning Crescent8Sun
9Mon9:365.910:085.13:210.64:020.110:119:42New Moon9Mon
10Tue10:086.211:024.83:551.04:50-0.310:129:40New Moon10Tue
11Wed10:416.44:291.65:40-0.410:139:39New Moon11Wed
12Thu12:004.411:16 AM6.35:042.16:31-0.410:139:38Waxing Crescent12Thu
13Fri1:024.111:54 AM6.15:402.67:24-0.210:149:36Waxing Crescent13Fri
14Sat2:133.812:365.76:193.08:220.010:159:35Waxing Crescent14Sat
15Sun3:443.71:255.27:053.39:300.310:169:34Waxing Crescent15Sun
16Mon5:243.82:284.88:213.610:420.510:179:33First Quarter16Mon
17Tue6:323.93:564.510:373.511:450.610:189:31First Quarter17Tue
18Wed7:124.15:194.412:073.210:199:30First Quarter18Wed
19Thu7:404.36:274.412:360.61:042.710:199:29First Quarter19Thu
20Fri8:024.57:234.41:170.71:482.310:209:28Waxing Gibbous20Fri
21Sat8:214.78:114.41:500.92:251.810:219:27Waxing Gibbous21Sat
22Sun8:405.08:544.42:181.12:591.310:229:25Waxing Gibbous22Sun
23Mon9:005.39:364.32:431.43:320.910:239:24Waxing Gibbous23Mon
24Tue9:205.610:184.23:071.64:060.510:249:23Full Moon24Tue
25Wed9:435.811:034.13:322.04:430.110:259:22Full Moon25Wed
26Thu10:085.911:543.93:572.35:23-0.110:269:21Full Moon26Thu
27Fri10:386.04:242.66:06-0.210:279:20Full Moon27Fri
28Sat12:513.711:12 AM6.04:532.96:55-0.310:279:19Waning Gibbous28Sat
29Sun1:573.611:53 AM5.95:273.17:49-0.210:289:18Waning Gibbous29Sun
30Mon3:193.612:435.76:133.38:51-0.210:299:17Waning Gibbous30Mon
31Tue4:453.71:465.37:293.59:58-0.110:309:16Third Quarter31Tue
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 11:29 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