Tides Today & Tomorrow in Trinidad Harbor, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Trinidad Harbor, CA.
Next low tide (tomorrow) : 1:30 am (1.0 ft)
Next high tide : in 2h 14m at 5:47 pm (6.0 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:31 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9419059
Common Questions About Tides

Trinidad Harbor, CA Tides - Oct 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:516.49:516.43:260.03:501.26:135:59Waxing Gibbous1Sun
2Mon10:236.710:426.34:050.34:350.56:145:57Full Moon2Mon
3Tue10:546.911:296.24:410.75:160.16:155:56Full Moon3Tue
4Wed11:237.15:161.35:56-0.26:165:54Full Moon4Wed
5Thu12:156.011:52 AM7.05:491.86:34-0.36:175:52Waning Gibbous5Thu
6Fri1:015.712:216.96:222.47:14-0.26:185:51Waning Gibbous6Fri
7Sat1:495.412:526.66:552.97:560.16:195:49Waning Gibbous7Sat
8Sun2:415.11:266.37:313.38:430.46:205:47Waning Gibbous8Sun
9Mon3:414.82:056.08:123.79:370.76:215:46Third Quarter9Mon
10Tue4:554.62:565.69:073.910:420.96:225:44Third Quarter10Tue
11Wed6:144.64:045.310:294.011:491.06:235:43Third Quarter11Wed
12Thu7:164.85:265.212:033.86:245:41Third Quarter12Thu
13Fri7:575.06:435.212:500.91:153.46:255:39Waning Crescent13Fri
14Sat8:285.47:475.41:390.82:082.76:265:38Waning Crescent14Sat
15Sun8:555.88:425.62:200.82:512.06:285:36Waning Crescent15Sun
16Mon9:216.29:335.82:570.93:321.26:295:35Waning Crescent16Mon
17Tue9:486.710:226.03:321.14:110.46:305:33New Moon17Tue
18Wed10:167.111:106.04:071.34:51-0.36:315:32New Moon18Wed
19Thu10:477.54:421.75:33-0.86:325:30New Moon19Thu
20Fri12:006.011:22 AM7.75:202.16:17-1.26:335:29New Moon20Fri
21Sat12:525.912:007.86:002.57:05-1.36:345:27Waxing Crescent21Sat
22Sun1:475.712:447.66:432.97:58-1.16:355:26Waxing Crescent22Sun
23Mon2:485.41:337.37:343.38:56-0.86:375:24Waxing Crescent23Mon
24Tue3:575.32:326.88:373.510:01-0.56:385:23First Quarter24Tue
25Wed5:105.33:456.39:593.611:09-0.26:395:22First Quarter25Wed
26Thu6:175.45:095.911:323.36:405:20First Quarter26Thu
27Fri7:125.86:345.612:140.112:552.76:415:19Waxing Gibbous27Fri
28Sat7:576.27:505.61:130.42:021.96:425:18Waxing Gibbous28Sat
29Sun8:356.58:555.62:040.82:551.16:435:16Waxing Gibbous29Sun
30Mon9:106.99:525.62:491.23:420.46:455:15Waxing Gibbous30Mon
31Tue9:417.110:435.73:291.64:23-0.16:465:14Full Moon31Tue
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 9:38 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 neap phase. Tonight's moon is 56% 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 near their weekly minimum.

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 (56% illuminated). This places Trinidad Harbor, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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