Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 41m at 2:38 am (0.2 ft)
Next high tide : 9:12 am (3.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:466.08:273.712:191.92:04-0.47:115:01Waxing Gibbous1Thu
2Fri7:286.19:143.81:102.12:46-0.77:115:02Waxing Gibbous2Fri
3Sat8:066.19:563.91:552.23:25-0.87:115:03Full Moon3Sat
4Sun8:436.010:353.92:372.24:01-0.87:115:04Full Moon4Sun
5Mon9:185.811:124.03:172.34:36-0.77:115:05Full Moon5Mon
6Tue9:535.611:484.03:572.35:09-0.57:115:05Full Moon6Tue
7Wed10:295.34:382.45:41-0.37:115:06Waning Gibbous7Wed
8Thu12:244.011:06 AM4.95:222.46:130.07:115:07Waning Gibbous8Thu
9Fri1:014.011:44 AM4.56:102.46:440.47:115:08Waning Gibbous9Fri
10Sat1:414.112:284.07:062.47:170.87:115:09Waning Gibbous10Sat
11Sun2:244.21:223.58:202.47:541.27:115:10Third Quarter11Sun
12Mon3:104.32:443.09:492.18:381.57:115:11Third Quarter12Mon
13Tue3:564.54:262.811:051.79:311.97:115:12Third Quarter13Tue
14Wed4:414.86:002.912:051.17:115:13Third Quarter14Wed
15Thu5:255.17:103.112:530.57:105:14Waning Crescent15Thu
16Fri6:085.58:003.31:35-0.17:105:15Waning Crescent16Fri
17Sat6:525.88:423.612:222.22:14-0.67:105:16Waning Crescent17Sat
18Sun7:356.19:213.91:142.12:53-1.07:095:17Waning Crescent18Sun
19Mon8:196.410:014.12:042.03:33-1.37:095:18New Moon19Mon
20Tue9:046.410:424.32:541.84:14-1.47:095:19New Moon20Tue
21Wed9:516.311:244.53:451.74:56-1.37:085:20New Moon21Wed
22Thu10:405.94:411.65:38-1.07:085:21Waxing Crescent22Thu
23Fri12:084.711:33 AM5.45:401.56:20-0.67:075:22Waxing Crescent23Fri
24Sat12:544.912:324.76:451.47:050.07:075:23Waxing Crescent24Sat
25Sun1:445.01:414.08:001.47:530.67:065:24First Quarter25Sun
26Mon2:405.13:103.49:281.18:501.27:065:25First Quarter26Mon
27Tue3:405.24:503.110:530.89:561.77:055:26First Quarter27Tue
28Wed4:395.36:243.212:050.37:045:27First Quarter28Wed
29Thu5:365.47:343.41:04-0.17:045:28Waxing Gibbous29Thu
30Fri6:295.58:243.612:092.11:52-0.47:035:29Waxing Gibbous30Fri
31Sat7:155.69:033.81:052.12:32-0.67:025:30Waxing Gibbous31Sat
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 5:55 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 77% 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 Waxing Gibbous (77% 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