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 : 4:19 pm (2.9 ft)
Next high tide : in 1h 56m at 12:36 pm (3.5 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 - Jun 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:594.25:594.610:580.18:5611:18First Quarter1Thu
2Fri5:213.86:454.912:031.911:53 AM0.58:5611:19First Quarter2Fri
3Sat6:393.67:245.11:101.412:410.88:5511:20Waxing Gibbous3Sat
4Sun7:493.57:595.22:050.91:251.28:5511:20Waxing Gibbous4Sun
5Mon8:473.58:295.42:500.52:031.58:5511:21Waxing Gibbous5Mon
6Tue9:373.58:575.53:290.22:361.88:5511:21Waxing Gibbous6Tue
7Wed10:213.59:255.54:04-0.13:072.18:5511:22Full Moon7Wed
8Thu11:043.69:535.54:38-0.33:382.38:5511:22Full Moon8Thu
9Fri11:463.610:225.55:12-0.44:092.48:5511:23Full Moon9Fri
10Sat12:283.65:47-0.54:442.68:5411:23Full Moon10Sat
11Sun1:113.66:23-0.55:222.78:5411:24Waning Gibbous11Sun
12Mon1:563.67:00-0.46:052.88:5411:24Waning Gibbous12Mon
13Tue12:025.02:443.77:38-0.36:562.98:5411:25Waning Gibbous13Tue
14Wed12:434.83:333.88:19-0.17:582.98:5411:25Waning Gibbous14Wed
15Thu1:304.44:214.09:030.19:212.88:5511:25Third Quarter15Thu
16Fri2:324.05:034.29:510.410:512.58:5511:26Third Quarter16Fri
17Sat3:533.75:424.610:410.68:5511:26Third Quarter17Sat
18Sun5:213.56:215.112:051.911:30 AM0.98:5511:26Third Quarter18Sun
19Mon6:443.47:005.51:071.212:191.28:5511:27Waning Crescent19Mon
20Tue7:583.67:426.02:010.41:091.48:5511:27Waning Crescent20Tue
21Wed9:023.78:256.42:50-0.31:591.68:5611:27Waning Crescent21Wed
22Thu9:593.99:096.73:38-0.92:491.88:5611:27New Moon22Thu
23Fri10:544.09:546.84:26-1.33:401.98:5611:27New Moon23Fri
24Sat11:484.110:426.75:14-1.64:322.08:5611:27New Moon24Sat
25Sun12:414.26:03-1.65:292.18:5711:28New Moon25Sun
26Mon1:344.36:51-1.46:292.28:5711:28Waxing Crescent26Mon
27Tue12:235.92:274.47:39-1.07:332.38:5711:28Waxing Crescent27Tue
28Wed1:185.33:234.58:27-0.58:462.38:5811:28Waxing Crescent28Wed
29Thu2:184.64:184.69:180.010:112.28:5811:28First Quarter29Thu
30Fri3:294.05:104.810:100.511:341.98:5911:28First Quarter30Fri
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 2:27 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 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