Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 12:33 pm (1.3 ft)
Next high tide : in 3h 32m at 6:53 am (4.9 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jun 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:485.57:516.912:471.812:470.45:468:42Third Quarter1Tue
2Wed8:085.28:417.32:001.21:451.05:468:43Waning Crescent2Wed
3Thu9:275.19:297.53:060.52:421.55:468:43Waning Crescent3Thu
4Fri10:395.210:157.84:04-0.13:371.95:458:44Waning Crescent4Fri
5Sat11:415.410:597.94:55-0.74:292.25:458:45Waning Crescent5Sat
6Sun12:355.65:41-1.15:192.45:458:45New Moon6Sun
7Mon1:235.76:24-1.36:052.55:458:46New Moon7Mon
8Tue12:227.82:075.87:05-1.36:502.75:448:46New Moon8Tue
9Wed1:017.62:485.87:44-1.27:342.85:448:47New Moon9Wed
10Thu1:407.33:275.88:23-1.08:182.85:448:48Waxing Crescent10Thu
11Fri2:206.94:075.89:01-0.79:032.95:448:48Waxing Crescent11Fri
12Sat3:016.54:465.89:39-0.39:532.95:448:48Waxing Crescent12Sat
13Sun3:456.05:275.810:170.110:492.95:448:49Waxing Crescent13Sun
14Mon4:345.56:085.910:570.611:512.75:448:49First Quarter14Mon
15Tue5:335.06:506.111:391.15:448:50First Quarter15Tue
16Wed6:414.67:336.312:572.412:241.65:448:50First Quarter16Wed
17Thu7:564.48:166.62:001.91:152.05:448:50First Quarter17Thu
18Fri9:114.48:597.02:571.22:092.45:448:51Waxing Gibbous18Fri
19Sat10:194.79:437.33:470.63:032.65:458:51Waxing Gibbous19Sat
20Sun11:185.010:267.74:34-0.13:562.75:458:51Waxing Gibbous20Sun
21Mon12:105.35:18-0.84:472.75:458:51Full Moon21Mon
22Tue12:585.66:01-1.35:362.75:458:52Full Moon22Tue
23Wed1:435.96:44-1.76:262.55:468:52Full Moon23Wed
24Thu12:438.32:286.27:28-1.97:182.45:468:52Full Moon24Thu
25Fri1:328.23:136.48:12-1.88:112.25:468:52Waning Gibbous25Fri
26Sat2:237.93:586.68:57-1.59:092.15:478:52Waning Gibbous26Sat
27Sun3:177.34:456.89:43-1.010:111.95:478:52Waning Gibbous27Sun
28Mon4:176.65:337.010:30-0.411:191.75:478:52Third Quarter28Mon
29Tue5:235.96:237.211:200.35:488:52Third Quarter29Tue
30Wed6:385.37:157.412:301.312:141.15:488:52Third Quarter30Wed
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 9:43 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 Eureka, CA?

Eureka, CA is currently in a neap phase. Tonight's moon is 59% 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 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 First Quarter (59% illuminated). This places Eureka, 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