Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 6h 00m at 10:11 am (-1.1 ft)
Next high tide : 5:22 pm (6.3 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Mar 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:046.79:164.81:311.06:506:07Third Quarter1Mon
2Tue7:126.610:055.112:514.12:330.86:486:08Waning Crescent2Tue
3Wed8:166.710:375.32:063.93:210.56:476:09Waning Crescent3Wed
4Thu9:116.811:025.63:043.54:010.36:456:11Waning Crescent4Thu
5Fri9:586.911:265.93:503.04:350.26:446:12Waning Crescent5Fri
6Sat10:417.011:516.24:322.65:050.26:426:13New Moon6Sat
7Sun11:227.05:102.15:350.36:406:14New Moon7Sun
8Mon12:156.512:036.95:481.66:030.56:396:15New Moon8Mon
9Tue12:406.812:446.76:261.26:310.96:376:16New Moon9Tue
10Wed1:067.11:276.37:050.87:001.46:366:17Waxing Crescent10Wed
11Thu1:337.32:155.97:470.57:311.96:346:18Waxing Crescent11Thu
12Fri2:027.53:095.58:340.38:042.56:326:19Waxing Crescent12Fri
13Sat2:377.64:135.19:270.28:423.06:316:21Waxing Crescent13Sat
14Sun4:227.56:314.711:300.210:333.47:297:22First Quarter14Sun
15Mon5:197.47:594.712:410.27:277:23First Quarter15Mon
16Tue6:327.29:185.01:540.07:267:24First Quarter16Tue
17Wed7:527.210:155.41:263.73:00-0.37:247:25Waxing Gibbous17Wed
18Thu9:087.310:595.92:513.23:57-0.57:227:26Waxing Gibbous18Thu
19Fri10:157.411:376.53:592.54:45-0.57:217:27Waxing Gibbous19Fri
20Sat11:157.44:571.75:29-0.47:197:28Full Moon20Sat
21Sun12:137.012:107.35:490.96:09-0.17:177:29Full Moon21Sun
22Mon12:477.41:027.16:370.36:470.47:167:30Full Moon22Mon
23Tue1:207.71:526.87:23-0.27:241.07:147:31Full Moon23Tue
24Wed1:537.82:426.38:08-0.48:001.67:127:32Waning Gibbous24Wed
25Thu2:277.73:335.98:53-0.48:372.37:117:33Waning Gibbous25Thu
26Fri3:017.54:265.49:39-0.29:152.87:097:34Waning Gibbous26Fri
27Sat3:387.25:265.010:290.29:563.37:077:36Waning Gibbous27Sat
28Sun4:216.86:374.711:250.510:493.77:067:37Third Quarter28Sun
29Mon5:136.47:594.612:290.87:047:38Third Quarter29Mon
30Tue6:186.09:134.812:023.81:370.97:027:39Third Quarter30Tue
31Wed7:315.810:015.01:303.82:380.87:017:40Third Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418801)

Common Questions About Eureka, CA Tides

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

Slack tide in Eureka, CA is approximately 1:46 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 Eureka, CA?

Eureka, CA is currently in a transitional phase. Tonight's moon is 28% 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 Eureka, 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 Eureka, CA?

Tide predictions for Eureka, 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 Eureka, CA?

Tide data for Eureka, CA is sourced from NOAA Station #9418801. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9418801.

What is the moon phase in Eureka, CA tonight?

Tonight the moon over Eureka, CA is Waxing Crescent (28% illuminated). This places Eureka, 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