Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 11:42 pm (1.5 ft)
Next high tide : in 3h 19m at 4:35 pm (5.0 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:343.77:155.31:041.412:340.78:5611:18Waning Crescent1Wed
2Thu7:523.57:495.72:040.61:161.28:5611:19Waning Crescent2Thu
3Fri9:003.58:225.92:540.01:551.78:5511:20Waning Crescent3Fri
4Sat10:003.58:536.03:38-0.42:312.18:5511:20Waning Crescent4Sat
5Sun10:553.59:256.04:19-0.73:072.48:5511:21New Moon5Sun
6Mon11:483.59:575.94:59-0.93:412.78:5511:21New Moon6Mon
7Tue12:383.55:38-0.94:172.88:5511:22New Moon7Tue
8Wed1:253.56:17-0.84:553.08:5511:22New Moon8Wed
9Thu2:133.56:57-0.65:383.08:5511:23Waxing Crescent9Thu
10Fri3:023.57:36-0.46:283.18:5411:23Waxing Crescent10Fri
11Sat12:245.03:523.68:16-0.27:273.18:5411:24Waxing Crescent11Sat
12Sun1:084.64:363.78:580.18:443.18:5411:24Waxing Crescent12Sun
13Mon1:594.25:113.99:400.410:202.98:5411:25First Quarter13Mon
14Tue3:043.75:414.210:200.711:422.48:5411:25First Quarter14Tue
15Wed4:283.36:084.510:591.08:5511:25First Quarter15Wed
16Thu5:543.16:354.912:451.811:37 AM1.48:5511:26First Quarter16Thu
17Fri7:183.17:045.31:371.112:151.78:5511:26Waxing Gibbous17Fri
18Sat8:323.27:385.82:220.412:552.18:5511:26Waxing Gibbous18Sat
19Sun9:333.38:156.23:06-0.31:392.38:5511:26Waxing Gibbous19Sun
20Mon10:283.58:566.53:49-0.92:252.58:5511:27Full Moon20Mon
21Tue11:223.69:406.74:35-1.43:142.68:5511:27Full Moon21Tue
22Wed12:133.75:22-1.74:062.78:5611:27Full Moon22Wed
23Thu1:033.86:10-1.85:042.78:5611:27Full Moon23Thu
24Fri1:523.96:58-1.76:082.78:5611:27Waning Gibbous24Fri
25Sat12:136.22:414.17:46-1.47:182.68:5711:28Waning Gibbous25Sat
26Sun1:115.63:314.38:33-0.98:382.58:5711:28Waning Gibbous26Sun
27Mon2:154.94:204.79:21-0.310:102.18:5711:28Third Quarter27Mon
28Tue3:314.15:065.010:100.311:381.68:5811:28Third Quarter28Tue
29Wed5:013.55:495.310:581.08:5811:28Third Quarter29Wed
30Thu6:363.26:325.612:531.011:45 AM1.68:5811:28Waning Crescent30Thu
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 8:08 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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