Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Eureka, CA.
Next low tide (tomorrow) : 4:02 am (0.2 ft)
Next high tide : in 49m at 9:01 pm (7.2 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jan 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:216.75:005.211:192.910:541.87:404:59Third Quarter1Fri
2Sat6:056.86:134.812:272.67:405:00Third Quarter2Sat
3Sun6:506.97:324.71:312.17:415:01Third Quarter3Sun
4Mon7:347.28:474.812:372.82:251.67:415:02Waning Crescent4Mon
5Tue8:187.49:515.11:323.13:121.07:415:02Waning Crescent5Tue
6Wed9:007.710:435.42:263.33:540.47:405:03Waning Crescent6Wed
7Thu9:427.911:275.83:163.34:33-0.17:405:04Waning Crescent7Thu
8Fri10:238.24:023.35:11-0.67:405:05New Moon8Fri
9Sat12:086.111:03 AM8.34:473.25:49-0.97:405:06New Moon9Sat
10Sun12:476.311:45 AM8.45:313.16:27-1.17:405:07New Moon10Sun
11Mon1:276.512:288.36:172.97:06-1.17:405:08New Moon11Mon
12Tue2:066.81:138.07:052.87:47-0.87:395:09Waxing Crescent12Tue
13Wed2:477.02:027.67:572.68:29-0.47:395:11Waxing Crescent13Wed
14Thu3:307.22:577.08:552.49:130.17:395:12Waxing Crescent14Thu
15Fri4:157.44:016.39:592.210:000.87:385:13First Quarter15Fri
16Sat5:047.65:155.711:091.910:531.57:385:14First Quarter16Sat
17Sun5:567.86:395.312:231.47:375:15First Quarter17Sun
18Mon6:518.08:055.31:330.87:375:16Waxing Gibbous18Mon
19Tue7:478.29:245.512:582.72:370.27:365:17Waxing Gibbous19Tue
20Wed8:428.310:295.82:042.93:32-0.37:365:18Waxing Gibbous20Wed
21Thu9:348.411:216.23:063.04:21-0.67:355:20Waxing Gibbous21Thu
22Fri10:238.54:023.05:06-0.87:355:21Full Moon22Fri
23Sat12:066.411:09 AM8.44:532.95:47-0.97:345:22Full Moon23Sat
24Sun12:466.611:53 AM8.25:402.76:26-0.77:335:23Full Moon24Sun
25Mon1:236.712:347.96:242.77:02-0.57:325:24Full Moon25Mon
26Tue1:586.81:147.47:082.67:38-0.17:325:26Waning Gibbous26Tue
27Wed2:326.81:556.97:532.68:120.47:315:27Waning Gibbous27Wed
28Thu3:076.82:386.48:392.68:471.07:305:28Waning Gibbous28Thu
29Fri3:436.83:255.89:292.59:221.57:295:29Waning Gibbous29Fri
30Sat4:216.84:215.310:252.59:592.17:285:31Third Quarter30Sat
31Sun5:026.85:294.911:282.310:422.77:275:32Third Quarter31Sun
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 12:31 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 transitional phase. Tonight's moon is 77% 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 Gibbous (77% 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