Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:47 pm (2.8 ft)
Next high tide : in 1h 45m at 1:41 pm (3.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Dec 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:165.811:423.73:062.74:49-0.39:597:58Full Moon1Thu
2Fri9:455.73:362.95:26-0.310:007:57Full Moon2Fri
3Sat12:313.710:16 AM5.54:093.16:05-0.210:017:57Waning Gibbous3Sat
4Sun1:263.610:52 AM5.24:483.36:470.010:027:57Waning Gibbous4Sun
5Mon2:293.711:32 AM4.95:393.47:320.110:037:57Waning Gibbous5Mon
6Tue3:303.812:194.66:483.58:220.310:047:57Waning Gibbous6Tue
7Wed4:154.01:234.28:313.49:130.510:047:57Third Quarter7Wed
8Thu4:484.22:493.910:103.010:010.710:057:57Third Quarter8Thu
9Fri5:164.54:183.711:192.410:450.910:067:57Third Quarter9Fri
10Sat5:445.05:383.612:141.710:077:58Third Quarter10Sat
11Sun6:135.46:513.71:020.810:077:58Waning Crescent11Sun
12Mon6:455.97:543.812:091.51:480.010:087:58Waning Crescent12Mon
13Tue7:216.48:523.912:521.82:33-0.710:097:58Waning Crescent13Tue
14Wed7:596.89:494.01:352.03:19-1.310:107:59New Moon14Wed
15Thu8:417.010:454.02:202.24:08-1.610:107:59New Moon15Thu
16Fri9:257.011:424.03:082.44:57-1.710:117:59New Moon16Fri
17Sat10:146.74:012.65:48-1.610:118:00Waxing Crescent17Sat
18Sun12:394.111:06 AM6.35:002.76:39-1.310:128:00Waxing Crescent18Sun
19Mon1:374.112:025.76:082.87:32-0.910:138:00Waxing Crescent19Mon
20Tue2:374.31:055.07:272.88:27-0.410:138:01First Quarter20Tue
21Wed3:344.52:214.39:042.69:220.210:148:01First Quarter21Wed
22Thu4:254.83:493.810:362.110:150.710:148:02First Quarter22Thu
23Fri5:105.05:173.511:511.511:041.210:158:02First Quarter23Fri
24Sat5:505.36:403.412:500.910:158:03Waxing Gibbous24Sat
25Sun6:255.57:483.41:380.410:158:03Waxing Gibbous25Sun
26Mon6:585.68:433.512:302.12:180.010:168:04Waxing Gibbous26Mon
27Tue7:285.79:293.61:082.42:53-0.310:168:05Waxing Gibbous27Tue
28Wed7:575.810:113.61:432.63:27-0.510:168:05Full Moon28Wed
29Thu8:275.810:503.62:162.74:00-0.610:178:06Full Moon29Thu
30Fri8:585.811:283.62:492.84:34-0.610:178:07Full Moon30Fri
31Sat9:305.73:242.85:09-0.610:178:07Full Moon31Sat
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 3:44 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 94% 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 Waning Gibbous (94% 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