Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 10:34 pm (2.5 ft)
Next high tide : in 1h 02m at 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 - Feb 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:287.03:375.39:362.29:002.27:265:33First Quarter1Tue
2Wed4:017.14:434.810:341.99:322.87:255:34First Quarter2Wed
3Thu4:407.26:074.511:401.610:123.37:245:36First Quarter3Thu
4Fri5:297.37:434.512:491.27:235:37First Quarter4Fri
5Sat6:297.59:094.81:560.67:225:38Waxing Gibbous5Sat
6Sun7:337.810:085.212:464.02:54-0.17:215:39Waxing Gibbous6Sun
7Mon8:378.210:535.72:073.83:45-0.77:205:41Waxing Gibbous7Mon
8Tue9:368.511:316.13:143.44:31-1.17:195:42Waxing Gibbous8Tue
9Wed10:328.74:132.95:14-1.47:185:43Full Moon9Wed
10Thu12:086.611:25 AM8.75:072.35:55-1.37:165:44Full Moon10Thu
11Fri12:457.112:178.56:001.76:36-1.07:155:45Full Moon11Fri
12Sat1:227.61:107.96:531.27:15-0.47:145:47Waning Gibbous12Sat
13Sun2:007.92:057.37:460.87:550.47:135:48Waning Gibbous13Sun
14Mon2:398.13:036.58:420.68:351.27:115:49Waning Gibbous14Mon
15Tue3:218.14:075.79:420.69:182.17:105:50Third Quarter15Tue
16Wed4:067.95:235.110:470.710:082.97:095:52Third Quarter16Wed
17Thu4:587.76:544.811:580.711:093.57:075:53Third Quarter17Thu
18Fri5:577.48:354.91:120.77:065:54Third Quarter18Fri
19Sat7:037.29:485.212:273.82:200.57:055:55Waning Crescent19Sat
20Sun8:087.110:355.51:473.83:150.37:035:56Waning Crescent20Sun
21Mon9:067.211:095.72:523.64:000.27:025:58Waning Crescent21Mon
22Tue9:557.211:375.93:453.24:380.17:015:59Waning Crescent22Tue
23Wed10:397.24:292.95:100.16:596:00New Moon23Wed
24Thu12:016.211:18 AM7.25:082.55:400.26:586:01New Moon24Thu
25Fri12:256.411:56 AM7.05:452.16:080.46:566:02New Moon25Fri
26Sat12:496.612:346.86:221.86:350.76:556:03New Moon26Sat
27Sun1:146.81:126.56:581.57:021.16:536:05Waxing Crescent27Sun
28Mon1:397.01:536.17:361.37:281.66:526:06Waxing Crescent28Mon
29Tue2:057.12:375.78:171.27:542.16:506:07Waxing Crescent29Tue
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 7:58 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