Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 6h 14m at 10:20 pm (2.1 ft)
Next high tide (tomorrow) : 3:26 am (3.3 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:246.59:513.71:002.63:02-1.310:188:08Waxing Gibbous1Mon
2Tue8:086.510:353.81:532.73:45-1.410:188:09Full Moon2Tue
3Wed8:526.411:163.92:422.74:26-1.310:188:10Full Moon3Wed
4Thu9:346.211:543.93:302.65:06-1.210:188:11Full Moon4Thu
5Fri10:165.84:172.65:43-0.910:188:11Waning Gibbous5Fri
6Sat12:313.910:57 AM5.45:072.66:17-0.510:188:12Waning Gibbous6Sat
7Sun1:084.011:38 AM4.85:582.56:490.010:188:13Waning Gibbous7Sun
8Mon1:464.112:214.26:572.57:190.510:188:14Waning Gibbous8Mon
9Tue2:234.21:143.68:102.47:481.110:188:15Third Quarter9Tue
10Wed3:024.32:303.09:402.18:181.610:188:16Third Quarter10Wed
11Thu3:414.54:232.611:031.78:532.110:188:17Third Quarter11Thu
12Fri4:214.76:322.712:091.110:188:18Third Quarter12Fri
13Sat5:025.08:002.912:590.510:178:19Waning Crescent13Sat
14Sun5:445.28:443.11:400.010:178:20Waning Crescent14Sun
15Mon6:275.59:173.32:17-0.510:178:21Waning Crescent15Mon
16Tue7:105.89:473.512:392.92:53-0.910:178:21Waning Crescent16Tue
17Wed7:516.110:173.61:292.83:29-1.210:168:22New Moon17Wed
18Thu8:336.310:483.72:162.64:05-1.410:168:23New Moon18Thu
19Fri9:156.311:203.93:032.44:42-1.410:168:24New Moon19Fri
20Sat9:596.111:544.13:532.25:18-1.310:158:25New Moon20Sat
21Sun10:465.74:482.15:54-0.910:158:26Waxing Crescent21Sun
22Mon12:294.411:37 AM5.15:481.96:29-0.410:148:27Waxing Crescent22Mon
23Tue1:074.712:354.36:551.77:050.310:148:28Waxing Crescent23Tue
24Wed1:494.91:493.58:161.47:431.010:138:29First Quarter24Wed
25Thu2:375.23:342.99:491.08:281.710:138:30First Quarter25Thu
26Fri3:315.45:402.811:150.49:292.310:128:32First Quarter26Fri
27Sat4:295.67:263.112:26-0.210:128:33Waxing Gibbous27Sat
28Sun5:285.88:253.41:23-0.710:118:34Waxing Gibbous28Sun
29Mon6:265.99:053.612:032.72:11-1.010:108:35Waxing Gibbous29Mon
30Tue7:196.09:403.71:082.72:53-1.210:108:36Waxing Gibbous30Tue
31Wed8:056.010:113.82:002.53:31-1.210:098:37Full Moon31Wed
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 12:53 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 transitional phase. Tonight's moon is 62% 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 Third Quarter (62% 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