Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 6:46 am (-0.6 ft)
Next high tide : in 4h 10m at 11:09 pm (5.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:214.912:166.06:031.47:080.010:049:53Waxing Crescent1Fri
2Sat1:264.41:015.96:452.08:120.010:059:52Waxing Crescent2Sat
3Sun2:444.01:535.77:342.59:250.110:069:50Waxing Crescent3Sun
4Mon4:213.82:585.48:403.010:450.110:079:49First Quarter4Mon
5Tue5:564.04:195.210:213.211:570.110:089:48First Quarter5Tue
6Wed7:064.25:395.111:573.010:089:46First Quarter6Wed
7Thu7:554.56:495.112:590.01:092.610:099:45Waxing Gibbous7Thu
8Fri8:324.77:485.11:500.02:032.210:109:44Waxing Gibbous8Fri
9Sat9:024.88:375.12:320.22:471.810:119:42Waxing Gibbous9Sat
10Sun9:285.09:195.03:070.43:241.510:129:41Waxing Gibbous10Sun
11Mon9:525.19:584.93:380.73:591.210:129:39Full Moon11Mon
12Tue10:145.210:364.74:051.04:331.010:139:38Full Moon12Tue
13Wed10:365.211:164.54:301.35:070.810:149:37Full Moon13Wed
14Thu10:595.311:584.24:541.75:430.710:159:36Full Moon14Thu
15Fri11:235.35:182.16:210.710:169:34Waning Gibbous15Fri
16Sat12:464.011:50 AM5.25:432.57:030.710:179:33Waning Gibbous16Sat
17Sun1:413.712:195.16:102.87:510.810:179:32Waning Gibbous17Sun
18Mon2:563.512:544.96:393.18:500.810:189:31Waning Gibbous18Mon
19Tue4:453.51:414.77:203.410:020.810:199:29Third Quarter19Tue
20Wed6:143.72:524.58:583.611:110.710:209:28Third Quarter20Wed
21Thu6:583.94:234.511:063.510:219:27Third Quarter21Thu
22Fri7:264.25:414.612:080.512:193.010:229:26Third Quarter22Fri
23Sat7:514.56:474.812:560.41:132.510:239:25Waning Crescent23Sat
24Sun8:164.97:475.01:380.32:011.810:249:23Waning Crescent24Sun
25Mon8:435.38:415.12:160.32:461.110:249:22Waning Crescent25Mon
26Tue9:135.79:345.12:530.53:320.410:259:21New Moon26Tue
27Wed9:456.110:285.03:300.84:19-0.110:269:20New Moon27Wed
28Thu10:206.411:254.84:071.15:09-0.610:279:19New Moon28Thu
29Fri10:586.54:471.66:02-0.810:289:18New Moon29Fri
30Sat12:274.511:40 AM6.55:292.16:57-0.810:299:17Waxing Crescent30Sat
31Sun1:344.212:276.26:172.67:57-0.610:309:16Waxing Crescent31Sun
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 2:57 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 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