Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 5:31 pm (3.6 ft)
Next high tide : in 2h 22m at 1:25 pm (5.2 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:47 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Feb 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:436.511:40 AM9.15:232.96:24-1.87:255:34New Moon1Fri
2Sat1:236.812:328.86:172.57:07-1.57:245:35Waxing Crescent2Sat
3Sun2:027.11:258.37:122.17:48-1.07:235:37Waxing Crescent3Sun
4Mon2:427.42:197.58:081.88:29-0.27:225:38Waxing Crescent4Mon
5Tue3:227.63:186.69:081.69:100.77:215:39Waxing Crescent5Tue
6Wed4:047.74:245.810:111.49:531.77:205:40First Quarter6Wed
7Thu4:487.75:415.111:201.210:412.67:195:42First Quarter7Thu
8Fri5:367.67:164.812:321.07:185:43First Quarter8Fri
9Sat6:297.58:594.91:420.87:175:44First Quarter9Sat
10Sun7:277.410:155.212:493.92:450.57:155:45Waxing Gibbous10Sun
11Mon8:247.311:045.52:024.03:370.27:145:47Waxing Gibbous11Mon
12Tue9:177.411:395.73:053.94:210.07:135:48Waxing Gibbous12Tue
13Wed10:057.53:563.74:59-0.27:125:49Waxing Gibbous13Wed
14Thu12:085.810:47 AM7.54:393.45:33-0.37:105:50Full Moon14Thu
15Fri12:346.011:26 AM7.55:193.16:04-0.27:095:51Full Moon15Fri
16Sat12:596.112:037.45:562.86:34-0.17:085:53Full Moon16Sat
17Sun1:256.312:407.26:332.67:020.17:065:54Full Moon17Sun
18Mon1:506.51:176.87:112.37:290.57:055:55Waning Gibbous18Mon
19Tue2:166.61:576.47:512.17:561.07:045:56Waning Gibbous19Tue
20Wed2:436.82:425.98:341.98:231.67:025:57Waning Gibbous20Wed
21Thu3:116.93:365.49:231.78:532.27:015:59Waning Gibbous21Thu
22Fri3:437.14:444.910:201.49:272.86:596:00Third Quarter22Fri
23Sat4:237.26:114.611:261.110:133.46:586:01Third Quarter23Sat
24Sun5:157.37:484.612:390.76:566:02Third Quarter24Sun
25Mon6:217.49:124.91:490.26:556:03Waning Crescent25Mon
26Tue7:337.710:095.412:594.02:51-0.46:536:04Waning Crescent26Tue
27Wed8:418.010:535.82:203.73:44-0.96:526:06Waning Crescent27Wed
28Thu9:448.311:316.33:263.14:32-1.36:506:07Waning Crescent28Thu
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 3:28 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 spring phase. Tonight's moon is 99% 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 maximum.

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 Full Moon (99% illuminated). This places Eureka, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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