Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 03m at 5:01 pm (2.8 ft)
Next high tide : 11:09 pm (5.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:094.09:126.43:43-0.82:572.16:128:06Full Moon1Mon
2Tue10:464.39:596.54:22-1.03:491.86:138:05Full Moon2Tue
3Wed11:244.610:486.35:02-1.04:421.66:148:04Full Moon3Wed
4Thu12:034.95:42-0.85:381.46:148:03Waning Gibbous4Thu
5Fri12:455.26:22-0.46:381.26:158:02Waning Gibbous5Fri
6Sat12:345.31:295.47:030.17:411.16:168:01Waning Gibbous6Sat
7Sun1:354.62:175.57:450.78:531.16:178:00Waning Gibbous7Sun
8Mon2:464.03:115.58:311.310:160.96:177:59Third Quarter8Mon
9Tue4:183.54:125.59:281.911:390.76:187:58Third Quarter9Tue
10Wed5:583.45:165.510:382.36:197:57Third Quarter10Wed
11Thu7:273.56:185.612:510.411:54 AM2.56:207:56Waning Crescent11Thu
12Fri8:303.77:165.61:510.11:022.56:217:55Waning Crescent12Fri
13Sat9:153.98:065.72:39-0.11:592.46:217:53Waning Crescent13Sat
14Sun9:494.18:485.73:20-0.22:452.36:227:52Waning Crescent14Sun
15Mon10:194.29:265.63:55-0.13:252.16:237:51New Moon15Mon
16Tue10:474.310:015.54:260.04:012.06:247:50New Moon16Tue
17Wed11:134.410:365.34:540.14:381.86:247:49New Moon17Wed
18Thu11:394.511:115.15:210.45:151.76:257:48New Moon18Thu
19Fri12:064.65:460.65:541.76:267:46Waxing Crescent19Fri
20Sat12:344.66:121.06:371.66:277:45Waxing Crescent20Sat
21Sun12:274.41:034.76:371.37:231.66:277:44Waxing Crescent21Sun
22Mon1:124.01:354.77:031.78:181.66:287:43Waxing Crescent22Mon
23Tue2:073.52:144.87:312.19:291.66:297:41First Quarter23Tue
24Wed3:273.23:054.88:052.410:511.46:307:40First Quarter24Wed
25Thu5:163.14:094.98:592.76:307:39First Quarter25Thu
26Fri6:493.25:165.112:021.010:31 AM2.96:317:37First Quarter26Fri
27Sat7:463.56:195.41:000.611:55 AM2.86:327:36Waxing Gibbous27Sat
28Sun8:253.87:175.81:480.11:022.56:337:35Waxing Gibbous28Sun
29Mon8:584.28:116.02:31-0.22:002.16:337:33Waxing Gibbous29Mon
30Tue9:314.69:016.23:11-0.42:531.66:347:32Waxing Gibbous30Tue
31Wed10:054.99:516.23:50-0.53:441.26:357:31Full 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 8:05 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 97% 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 (97% 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