Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 6:13 am (-0.7 ft)
Next high tide : in 2m at 10:33 pm (5.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:485.211:154.74:401.25:100.910:059:53New Moon1Sat
2Sun11:145.211:564.45:071.55:470.810:059:51New Moon2Sun
3Mon11:415.15:341.96:270.810:069:50Waxing Crescent3Mon
4Tue12:414.112:105.06:012.27:090.910:079:49Waxing Crescent4Tue
5Wed1:313.912:424.96:312.57:571.010:089:47Waxing Crescent5Wed
6Thu2:343.61:204.77:052.88:561.110:099:46Waxing Crescent6Thu
7Fri4:013.52:104.57:533.110:071.110:099:44First Quarter7Fri
8Sat5:303.63:224.49:203.311:151.010:109:43First Quarter8Sat
9Sun6:313.84:454.411:083.210:119:42First Quarter9Sun
10Mon7:124.15:564.612:120.812:182.810:129:40First Quarter10Mon
11Tue7:434.46:574.81:000.61:122.410:139:39Waxing Gibbous11Tue
12Wed8:134.87:525.01:410.51:591.810:139:38Waxing Gibbous12Wed
13Thu8:425.28:435.22:200.42:431.210:149:36Waxing Gibbous13Thu
14Fri9:135.69:325.32:580.53:280.610:159:35Full Moon14Fri
15Sat9:475.910:235.23:350.64:140.110:169:34Full Moon15Sat
16Sun10:236.211:175.04:140.95:03-0.210:179:33Full Moon16Sun
17Mon11:036.34:541.35:55-0.510:189:31Full Moon17Mon
18Tue12:154.711:46 AM6.35:381.76:50-0.510:199:30Waning Gibbous18Tue
19Wed1:184.512:346.16:272.17:48-0.410:199:29Waning Gibbous19Wed
20Thu2:304.21:285.77:232.58:54-0.110:209:28Waning Gibbous20Thu
21Fri3:524.22:335.38:362.810:060.110:219:26Third Quarter21Fri
22Sat5:114.33:524.910:122.911:160.210:229:25Third Quarter22Sat
23Sun6:164.55:154.711:432.610:239:24Third Quarter23Sun
24Mon7:084.86:284.612:170.412:542.210:249:23Third Quarter24Mon
25Tue7:495.07:324.61:100.51:491.810:259:22Waning Crescent25Tue
26Wed8:235.28:254.61:540.72:351.310:269:21Waning Crescent26Wed
27Thu8:525.39:104.52:311.03:131.010:279:20Waning Crescent27Thu
28Fri9:185.49:514.53:031.23:490.710:279:19Waning Crescent28Fri
29Sat9:425.510:304.33:311.54:220.510:289:18New Moon29Sat
30Sun10:065.511:104.23:571.84:560.310:299:17New Moon30Sun
31Mon10:315.511:524.14:232.15:310.310:309:16New Moon31Mon
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 2:23 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 100% 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 Full Moon (100% 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