40.8067’ N, 124.1670’ W

Eureka, CA

52°
H -°
L 50°
SE
5mph
High tide
12:20 am

Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Monday, November 9, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 5:02 am (3.0 ft)
Next high tide : in 2h 11m at 12:20 am (5.9 ft)
Sunset today : 5:05 pm
Sunrise tomorrow : 6:55 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Sep 1762

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:435.910:467.24:450.04:372.85:506:56Full Moon1Wed
2Thu12:086.05:180.05:142.45:516:54Full Moon2Thu
3Fri12:326.25:480.15:512.15:526:52Full Moon3Fri
4Sat12:027.012:576.46:160.36:271.85:536:51Full Moon4Sat
5Sun12:406.71:226.66:430.77:041.65:546:49Waning Gibbous5Sun
6Mon1:196.41:476.77:101.17:431.35:556:47Waning Gibbous6Mon
7Tue2:026.02:126.87:371.78:251.25:566:46Waning Gibbous7Tue
8Wed2:505.62:406.98:052.29:141.05:576:44Waning Gibbous8Wed
9Thu3:485.23:147.08:372.810:110.95:586:42Third Quarter9Thu
10Fri5:014.84:007.09:163.411:180.75:596:41Third Quarter10Fri
11Sat6:284.75:027.010:153.86:006:39Third Quarter11Sat
12Sun7:574.96:187.112:300.511:45 AM4.06:016:37Third Quarter12Sun
13Mon9:045.27:347.31:400.01:163.86:026:36Waning Crescent13Mon
14Tue9:525.68:437.62:40-0.42:293.26:036:34Waning Crescent14Tue
15Wed10:316.19:457.93:32-0.73:292.56:046:32Waning Crescent15Wed
16Thu11:086.610:428.04:18-0.94:231.76:056:31New Moon16Thu
17Fri11:447.111:377.95:01-0.85:150.96:066:29New Moon17Fri
18Sat12:197.55:42-0.46:050.36:076:27New Moon18Sat
19Sun12:307.612:557.86:210.26:54-0.16:086:26Waxing Crescent19Sun
20Mon1:247.11:317.97:000.97:45-0.36:096:24Waxing Crescent20Mon
21Tue2:206.52:097.97:401.78:36-0.26:106:22Waxing Crescent21Tue
22Wed3:206.02:497.68:222.59:320.06:116:21Waxing Crescent22Wed
23Thu4:285.53:347.29:093.210:330.36:126:19First Quarter23Thu
24Fri5:475.24:286.810:083.811:400.56:136:17First Quarter24Fri
25Sat7:185.25:356.411:264.16:146:15First Quarter25Sat
26Sun8:355.36:496.212:510.712:544.06:156:14First Quarter26Sun
27Mon9:255.57:586.21:550.72:053.66:166:12Waxing Gibbous27Mon
28Tue10:005.78:566.42:470.62:593.16:176:10Waxing Gibbous28Tue
29Wed10:286.09:456.53:300.53:422.66:186:09Waxing Gibbous29Wed
30Thu10:536.210:296.64:050.54:202.16:196:07Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418801)

Common Questions About Eureka, CA Tides

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Is this week a spring tide or neap tide in Eureka, CA?

Eureka, CA is currently in a spring phase. Tonight's moon is 0% 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 New Moon (0% 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