Tides Today & Tomorrow in Trinidad Harbor, CA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Trinidad Harbor, CA.
Next low tide (tomorrow) : 2:37 am (0.8 ft)
Next high tide : in 2h 33m at 6:50 pm (5.9 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:32 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9419059
Common Questions About Tides

Trinidad Harbor, CA Tides - Sep 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:335.41:446.27:251.68:131.35:426:50Waning Gibbous1Tue
2Wed2:195.02:116.27:532.29:001.25:436:49Waning Gibbous2Wed
3Thu3:144.62:436.18:222.89:551.25:446:47Third Quarter3Thu
4Fri4:274.33:256.18:573.311:021.15:456:46Third Quarter4Fri
5Sat6:034.24:226.09:493.75:466:44Third Quarter5Sat
6Sun7:384.35:346.112:160.911:14 AM3.95:476:42Third Quarter6Sun
7Mon8:394.66:486.31:240.512:463.85:486:41Waning Crescent7Mon
8Tue9:195.07:556.72:220.01:593.45:496:39Waning Crescent8Tue
9Wed9:545.48:557.13:10-0.52:582.85:506:37Waning Crescent9Wed
10Thu10:275.99:507.33:53-0.83:502.05:516:35New Moon10Thu
11Fri10:596.410:437.34:33-0.94:401.35:526:34New Moon11Fri
12Sat11:326.811:357.25:12-0.75:290.65:536:32New Moon12Sat
13Sun12:077.25:51-0.26:190.05:546:30Waxing Crescent13Sun
14Mon12:296.812:437.56:290.57:10-0.45:556:29Waxing Crescent14Mon
15Tue1:266.31:217.57:091.28:04-0.55:566:27Waxing Crescent15Tue
16Wed2:275.82:037.47:522.09:03-0.35:576:25Waxing Crescent16Wed
17Thu3:375.22:517.08:402.810:08-0.15:586:24First Quarter17Thu
18Fri5:004.93:496.69:403.411:220.25:596:22First Quarter18Fri
19Sat6:324.85:016.211:013.76:006:20First Quarter19Sat
20Sun7:515.06:216.012:380.312:353.76:016:18Waxing Gibbous20Sun
21Mon8:475.27:356.01:450.21:523.36:026:17Waxing Gibbous21Mon
22Tue9:285.58:346.12:400.22:492.96:036:15Waxing Gibbous22Tue
23Wed10:015.79:246.13:240.23:342.46:046:13Waxing Gibbous23Wed
24Thu10:285.810:076.14:000.34:121.96:056:12Full Moon24Thu
25Fri10:526.010:466.14:310.44:471.56:066:10Full Moon25Fri
26Sat11:156.211:256.04:590.75:211.16:076:08Full Moon26Sat
27Sun11:376.45:261.15:540.86:086:07Full Moon27Sun
28Mon12:035.811:59 AM6.55:521.56:270.66:096:05Full Moon28Mon
29Tue12:425.612:236.56:182.07:020.56:106:03Waning Gibbous29Tue
30Wed1:255.312:486.56:452.57:410.46:116:01Waning Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9419059)

Common Questions About Trinidad Harbor, CA Tides

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

Slack tide in Trinidad Harbor, CA is approximately 10:43 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 Trinidad Harbor, CA?

Trinidad Harbor, CA is currently in a transitional phase. Tonight's moon is 66% 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 Trinidad Harbor, 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 Trinidad Harbor, CA?

Tide predictions for Trinidad Harbor, 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 Trinidad Harbor, CA?

Tide data for Trinidad Harbor, CA is sourced from NOAA Station #9419059. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9419059.

What is the moon phase in Trinidad Harbor, CA tonight?

Tonight the moon over Trinidad Harbor, CA is First Quarter (66% illuminated). This places Trinidad Harbor, 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