Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 31m at 11:42 pm (1.5 ft)
Next high tide (tomorrow) : 5:10 am (3.0 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:553.910:095.74:37-0.64:001.69:1710:55New Moon1Sat
2Sun11:443.810:425.65:18-0.74:341.99:1610:56New Moon2Sun
3Mon12:343.65:59-0.75:102.29:1510:57New Moon3Mon
4Tue1:253.56:40-0.55:472.49:1410:58Waxing Crescent4Tue
5Wed2:203.47:23-0.36:292.69:1310:59Waxing Crescent5Wed
6Thu12:294.93:223.48:07-0.17:192.89:1210:59Waxing Crescent6Thu
7Fri1:124.54:273.48:570.28:272.99:1111:00Waxing Crescent7Fri
8Sat2:044.15:213.69:510.410:062.89:1111:01First Quarter8Sat
9Sun3:133.86:033.810:450.611:342.59:1011:02First Quarter9Sun
10Mon4:353.56:364.111:330.89:0911:03First Quarter10Mon
11Tue5:523.47:054.412:382.112:150.99:0811:04First Quarter11Tue
12Wed7:013.47:334.71:291.512:531.19:0711:04Waxing Gibbous12Wed
13Thu8:023.58:015.12:120.91:301.39:0611:05Waxing Gibbous13Thu
14Fri8:553.68:315.52:520.32:071.59:0611:06Waxing Gibbous14Fri
15Sat9:453.79:045.83:32-0.32:431.79:0511:07Waxing Gibbous15Sat
16Sun10:353.79:396.14:13-0.83:221.99:0411:07Full Moon16Sun
17Mon11:263.810:196.24:57-1.14:032.09:0311:08Full Moon17Mon
18Tue12:203.85:44-1.44:492.29:0311:09Full Moon18Tue
19Wed1:153.86:32-1.45:422.39:0211:10Waning Gibbous19Wed
20Thu2:123.87:23-1.36:432.59:0111:10Waning Gibbous20Thu
21Fri12:465.63:123.98:15-1.07:552.59:0111:11Waning Gibbous21Fri
22Sat1:475.14:124.29:10-0.79:242.49:0011:12Third Quarter22Sat
23Sun2:594.55:064.510:08-0.310:582.09:0011:13Third Quarter23Sun
24Mon4:234.05:544.811:030.28:5911:13Third Quarter24Mon
25Tue5:493.76:395.212:181.411:56 AM0.68:5911:14Third Quarter25Tue
26Wed7:103.57:205.51:250.812:451.18:5811:15Waning Crescent26Wed
27Thu8:223.57:585.72:200.21:311.48:5811:15Waning Crescent27Thu
28Fri9:223.68:345.83:07-0.22:131.88:5711:16Waning Crescent28Fri
29Sat10:143.69:085.93:49-0.62:532.18:5711:17New Moon29Sat
30Sun11:013.69:415.84:29-0.73:302.38:5711:17New Moon30Sun
31Mon11:473.610:155.75:07-0.84:062.48:5611:18New Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 2:26 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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