Tides Today & Tomorrow in Westport, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Westport, CA.
Next low tide : 10:57 pm (1.0 ft)
Next high tide : in 5h 34m at 4:01 pm (5.5 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 - Sep 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:524.14:125.89:342.411:250.56:447:45First Quarter1Mon
2Tue6:293.85:085.610:313.06:457:43First Quarter2Tue
3Wed8:103.96:145.412:390.511:51 AM3.36:467:42First Quarter3Wed
4Thu9:234.17:225.41:480.41:163.36:477:40Waxing Gibbous4Thu
5Fri10:084.28:245.52:450.32:223.16:487:39Waxing Gibbous5Fri
6Sat10:414.49:155.63:320.23:122.96:487:37Waxing Gibbous6Sat
7Sun11:084.59:595.74:120.23:532.66:497:35Waxing Gibbous7Sun
8Mon11:314.610:395.74:450.24:302.36:507:34Full Moon8Mon
9Tue11:534.811:175.65:150.35:062.06:517:32Full Moon9Tue
10Wed12:155.05:420.45:421.76:527:31Full Moon10Wed
11Thu12:375.16:080.76:191.56:537:29Full Moon11Thu
12Fri12:335.21:005.36:331.06:581.26:547:27Waning Gibbous12Fri
13Sat1:144.91:245.46:591.47:391.06:557:26Waning Gibbous13Sat
14Sun2:014.61:515.57:261.88:240.86:567:24Waning Gibbous14Sun
15Mon2:564.22:225.67:552.29:170.76:577:22Waning Gibbous15Mon
16Tue4:053.93:025.68:282.710:210.66:587:21Third Quarter16Tue
17Wed5:343.73:545.69:113.111:340.46:597:19Third Quarter17Wed
18Thu7:133.85:015.610:223.36:597:18Third Quarter18Thu
19Fri8:274.06:195.712:480.211:59 AM3.47:007:16Third Quarter19Fri
20Sat9:144.37:355.91:52-0.11:243.17:017:14Waning Crescent20Sat
21Sun9:514.68:436.12:47-0.32:332.67:027:13Waning Crescent21Sun
22Mon10:255.09:446.23:35-0.43:312.07:037:11Waning Crescent22Mon
23Tue10:575.410:406.24:18-0.44:251.37:047:09New Moon23Tue
24Wed11:305.811:366.04:59-0.15:170.77:057:08New Moon24Wed
25Thu12:036.15:370.36:070.27:067:06New Moon25Thu
26Fri12:315.712:376.36:150.96:57-0.17:077:04Waxing Crescent26Fri
27Sat1:275.21:136.36:531.57:48-0.27:087:03Waxing Crescent27Sat
28Sun2:284.81:506.27:312.18:41-0.27:097:01Waxing Crescent28Sun
29Mon3:354.42:315.98:122.69:390.07:107:00Waxing Crescent29Mon
30Tue4:534.13:195.69:013.110:440.37:116:58First Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9417624)

Common Questions About Westport, CA Tides

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

Slack tide in Westport, CA is approximately 7:29 pm — 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