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 25m 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 - Jan 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:454.42:483.69:492.49:250.910:188:08First Quarter1Sat
2Sun4:304.64:193.211:112.010:111.410:188:09First Quarter2Sun
3Mon5:094.85:513.012:161.410:188:10First Quarter3Mon
4Tue5:455.07:113.11:060.910:188:11Waxing Gibbous4Tue
5Wed6:185.28:113.21:460.410:188:12Waxing Gibbous5Wed
6Thu6:515.48:573.412:202.42:210.010:188:12Waxing Gibbous6Thu
7Fri7:235.69:373.51:002.62:55-0.310:188:13Waxing Gibbous7Fri
8Sat7:555.810:143.61:382.63:28-0.610:188:14Full Moon8Sat
9Sun8:285.910:503.62:152.74:02-0.810:188:15Full Moon9Sun
10Mon9:035.911:263.72:522.74:36-0.910:188:16Full Moon10Mon
11Tue9:395.93:322.65:12-0.910:188:17Full Moon11Tue
12Wed12:033.710:17 AM5.74:152.65:47-0.810:188:18Waning Gibbous12Wed
13Thu12:403.810:59 AM5.45:042.66:23-0.610:178:19Waning Gibbous13Thu
14Fri1:183.911:45 AM5.06:012.67:01-0.310:178:20Waning Gibbous14Fri
15Sat1:594.112:404.47:102.47:410.210:178:21Waning Gibbous15Sat
16Sun2:434.41:523.88:362.28:250.710:178:22Third Quarter16Sun
17Mon3:294.73:283.310:081.69:151.310:168:23Third Quarter17Mon
18Tue4:165.15:133.111:260.910:121.710:168:24Third Quarter18Tue
19Wed5:045.66:493.212:310.110:168:25Waning Crescent19Wed
20Thu5:545.97:593.41:26-0.610:158:26Waning Crescent20Thu
21Fri6:446.38:533.612:142.32:15-1.210:158:27Waning Crescent21Fri
22Sat7:336.59:393.81:132.33:01-1.510:148:28Waning Crescent22Sat
23Sun8:216.510:224.02:072.33:45-1.610:148:29New Moon23Sun
24Mon9:066.411:034.12:582.24:27-1.510:138:30New Moon24Mon
25Tue9:516.211:434.13:482.15:08-1.310:138:31New Moon25Tue
26Wed10:365.74:382.15:46-0.910:128:32Waxing Crescent26Wed
27Thu12:224.211:21 AM5.25:302.06:23-0.410:118:33Waxing Crescent27Thu
28Fri1:024.212:074.66:252.06:580.110:118:34Waxing Crescent28Fri
29Sat1:424.312:593.97:272.07:330.710:108:35Waxing Crescent29Sat
30Sun2:254.32:063.38:461.98:091.310:098:36First Quarter30Sun
31Mon3:104.43:442.810:161.78:521.910:098:37First Quarter31Mon
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