Tides Today & Tomorrow in Westport, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Westport, CA.
Next low tide : in 6h 54m at 10:57 pm (1.0 ft)
Next high tide (tomorrow) : 5:33 am (3.7 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:30 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9417624
Common Questions About Tides

Westport, CA Tides - Jun 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:314.010:196.64:41-1.13:532.25:498:37Full Moon1Mon
2Tue12:294.15:28-1.54:402.55:488:37Full Moon2Tue
3Wed1:224.16:13-1.65:282.75:488:38Full Moon3Wed
4Thu2:144.26:58-1.56:162.85:488:39Full Moon4Thu
5Fri12:256.23:044.17:43-1.37:052.95:488:39Waning Gibbous5Fri
6Sat1:095.83:534.18:27-1.07:573.05:478:40Waning Gibbous6Sat
7Sun1:555.44:414.29:12-0.68:583.05:478:41Waning Gibbous7Sun
8Mon2:445.05:264.39:56-0.210:082.95:478:41Waning Gibbous8Mon
9Tue3:394.56:074.410:390.211:282.75:478:42Third Quarter9Tue
10Wed4:444.06:434.611:220.75:478:42Third Quarter10Wed
11Thu6:003.67:154.812:432.212:031.15:478:43Third Quarter11Thu
12Fri7:223.37:455.11:441.712:431.55:478:43Third Quarter12Fri
13Sat8:423.38:155.42:351.11:231.95:478:44Waning Crescent13Sat
14Sun9:513.48:475.63:180.52:042.25:478:44Waning Crescent14Sun
15Mon10:503.69:215.93:580.02:462.55:478:44Waning Crescent15Mon
16Tue11:413.79:576.14:37-0.53:302.75:478:45Waning Crescent16Tue
17Wed12:283.95:17-0.94:142.85:478:45New Moon17Wed
18Thu1:124.05:58-1.25:002.95:478:45New Moon18Thu
19Fri1:574.16:40-1.45:482.95:478:46New Moon19Fri
20Sat12:026.52:414.37:23-1.56:412.95:478:46Waxing Crescent20Sat
21Sun12:496.43:254.48:07-1.47:392.85:488:46Waxing Crescent21Sun
22Mon1:406.04:094.68:52-1.18:462.75:488:46Waxing Crescent22Mon
23Tue2:375.54:514.99:37-0.710:022.45:488:46First Quarter23Tue
24Wed3:434.95:345.310:22-0.111:231.95:488:46First Quarter24Wed
25Thu5:014.26:165.611:090.55:498:47First Quarter25Thu
26Fri6:313.76:596.012:421.211:58 AM1.25:498:47First Quarter26Fri
27Sat8:063.57:436.21:510.512:491.85:498:47Waxing Gibbous27Sat
28Sun9:343.68:286.42:51-0.21:432.35:508:47Waxing Gibbous28Sun
29Mon10:453.89:136.63:45-0.72:392.65:508:47Waxing Gibbous29Mon
30Tue11:434.09:596.64:33-1.13:342.85:518:46Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9417624)

Common Questions About Westport, CA Tides

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

Slack tide in Westport, CA is approximately 2:15 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 Westport, CA?

Westport, CA is currently in a transitional phase. Tonight's moon is 37% 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 Westport, 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 Westport, CA?

Tide predictions for Westport, 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 Westport, CA?

Tide data for Westport, CA is sourced from NOAA Station #9417624. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9417624.

What is the moon phase in Westport, CA tonight?

Tonight the moon over Westport, CA is First Quarter (37% illuminated). This places Westport, 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