Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 0m at 12:10 am (1.9 ft)
Next high tide : 5:21 am (3.3 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:48 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:166.89:423.712:482.62:55-1.67:115:02Full Moon1Thu
2Fri8:056.910:283.91:452.63:41-1.87:115:02Full Moon2Fri
3Sat8:546.911:124.02:412.54:27-1.87:115:03Full Moon3Sat
4Sun9:436.611:554.13:362.45:11-1.67:115:04Full Moon4Sun
5Mon10:326.24:332.35:53-1.37:115:05Waning Gibbous5Mon
6Tue12:374.211:21 AM5.65:322.36:32-0.77:115:06Waning Gibbous6Tue
7Wed1:204.412:124.86:352.27:10-0.17:115:07Waning Gibbous7Wed
8Thu2:044.51:094.07:462.17:470.67:115:07Third Quarter8Thu
9Fri2:494.62:223.39:131.98:251.27:115:08Third Quarter9Fri
10Sat3:344.84:032.810:401.59:061.97:115:09Third Quarter10Sat
11Sun4:184.96:042.711:541.19:522.47:115:10Third Quarter11Sun
12Mon5:015.07:472.912:510.67:115:11Waning Crescent12Mon
13Tue5:445.28:413.21:360.17:115:12Waning Crescent13Tue
14Wed6:265.39:163.32:14-0.27:105:13Waning Crescent14Wed
15Thu7:075.59:453.412:402.92:48-0.57:105:14Waning Crescent15Thu
16Fri7:445.610:113.51:252.83:21-0.77:105:15Waning Crescent16Fri
17Sat8:205.810:383.62:052.73:52-0.87:105:16New Moon17Sat
18Sun8:555.811:063.72:432.64:24-0.97:095:17New Moon18Sun
19Mon9:305.811:343.83:232.54:54-0.97:095:18New Moon19Mon
20Tue10:065.64:062.45:24-0.77:085:19Waxing Crescent20Tue
21Wed12:023.910:45 AM5.24:532.25:53-0.47:085:20Waxing Crescent21Wed
22Thu12:324.111:29 AM4.75:462.16:230.07:085:21Waxing Crescent22Thu
23Fri1:044.412:214.16:481.96:520.67:075:22Waxing Crescent23Fri
24Sat1:404.71:293.48:041.77:241.27:065:23First Quarter24Sat
25Sun2:225.03:132.89:361.28:021.87:065:24First Quarter25Sun
26Mon3:135.35:252.711:020.68:592.37:055:25First Quarter26Mon
27Tue4:115.57:152.912:13-0.17:055:26First Quarter27Tue
28Wed5:125.88:133.31:11-0.87:045:27Waxing Gibbous28Wed
29Thu6:136.18:533.62:01-1.37:035:28Waxing Gibbous29Thu
30Fri7:106.49:283.812:522.62:45-1.67:035:29Waxing Gibbous30Fri
31Sat8:026.510:034.01:522.33:27-1.67:025:30Full Moon31Sat
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 2:45 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 transitional phase. Tonight's moon is 35% 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 shifting between spring and neap.

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 (35% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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