Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 8:28 am (-0.8 ft)
Next high tide : in 2h 42m at 1:34 am (7.2 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Nov 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:056.610:125.63:131.34:071.87:486:12Waxing Gibbous1Tue
2Wed10:347.111:085.83:521.54:480.97:496:10Waxing Gibbous2Wed
3Thu11:037.64:301.85:280.17:506:09Full Moon3Thu
4Fri12:016.011:33 AM8.05:082.26:09-0.67:516:08Full Moon4Fri
5Sat12:536.112:068.45:462.66:51-1.27:536:07Full Moon5Sat
6Sun1:446.111:42 AM8.65:252.96:35-1.56:545:06Full Moon6Sun
7Mon1:376.112:228.66:073.27:23-1.66:555:05Waning Gibbous7Mon
8Tue2:326.01:078.46:543.58:13-1.56:565:04Waning Gibbous8Tue
9Wed3:315.81:598.17:473.79:08-1.16:575:03Waning Gibbous9Wed
10Thu4:335.83:007.58:533.810:06-0.76:585:02Third Quarter10Thu
11Fri5:355.94:126.910:123.711:07-0.27:005:01Third Quarter11Fri
12Sat6:336.25:326.311:403.37:015:00Third Quarter12Sat
13Sun7:246.66:555.912:070.21:022.67:024:59Third Quarter13Sun
14Mon8:087.08:145.71:030.72:101.87:034:58Waning Crescent14Mon
15Tue8:487.59:265.61:551.33:060.97:044:58Waning Crescent15Tue
16Wed9:247.810:295.72:421.83:540.17:054:57Waning Crescent16Wed
17Thu9:588.111:255.83:262.34:37-0.47:074:56New Moon17Thu
18Fri10:318.24:082.85:17-0.87:084:55New Moon18Fri
19Sat12:155.911:03 AM8.14:483.25:55-0.97:094:55New Moon19Sat
20Sun1:015.911:36 AM8.05:273.56:33-0.97:104:54New Moon20Sun
21Mon1:445.912:097.86:053.87:11-0.77:114:53Waxing Crescent21Mon
22Tue2:275.812:447.56:443.97:50-0.57:124:53Waxing Crescent22Tue
23Wed3:115.71:217.27:254.18:30-0.27:134:52Waxing Crescent23Wed
24Thu3:575.62:026.88:114.19:130.17:154:52Waxing Crescent24Thu
25Fri4:445.62:496.39:084.29:570.57:164:51First Quarter25Fri
26Sat5:305.73:475.810:184.010:420.87:174:51First Quarter26Sat
27Sun6:145.94:585.411:353.711:291.27:184:50First Quarter27Sun
28Mon6:536.26:175.012:463.17:194:50First Quarter28Mon
29Tue7:286.77:364.912:161.61:462.37:204:50Waxing Gibbous29Tue
30Wed8:037.18:505.11:042.02:361.47:214:49Waxing Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418801)

Common Questions About Eureka, CA Tides

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

Slack tide in Eureka, CA is approximately 5:01 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 spring phase. Tonight's moon is 97% 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 (97% 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