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 00m 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 - Aug 1762

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:115.49:317.53:49-0.33:163.65:197:39Waxing Gibbous1Sun
2Mon11:515.510:177.54:33-0.54:063.55:207:38Full Moon2Mon
3Tue12:245.75:12-0.54:503.35:217:37Full Moon3Tue
4Wed12:535.75:48-0.65:303.15:227:35Full Moon4Wed
5Thu1:215.86:21-0.56:082.95:237:34Full Moon5Thu
6Fri12:157.31:485.96:52-0.36:472.75:247:33Full Moon6Fri
7Sat12:527.02:166.17:22-0.17:272.65:257:32Waning Gibbous7Sat
8Sun1:306.62:446.27:510.38:092.45:267:31Waning Gibbous8Sun
9Mon2:116.23:136.48:200.88:562.25:277:29Waning Gibbous9Mon
10Tue2:575.73:436.58:481.49:482.05:287:28Waning Gibbous10Tue
11Wed3:545.14:176.79:192.010:481.75:297:27Third Quarter11Wed
12Thu5:054.74:576.99:562.711:551.35:307:25Third Quarter12Thu
13Fri6:324.55:477.110:443.25:317:24Third Quarter13Fri
14Sat8:044.66:477.31:040.811:55 AM3.65:327:23Waning Crescent14Sat
15Sun9:234.97:517.72:080.21:173.85:337:21Waning Crescent15Sun
16Mon10:205.38:538.13:06-0.52:303.65:347:20Waning Crescent16Mon
17Tue11:055.79:528.43:58-1.03:323.25:357:19Waning Crescent17Tue
18Wed11:466.110:488.64:45-1.44:292.65:367:17New Moon18Wed
19Thu12:246.55:30-1.65:232.15:377:16New Moon19Thu
20Fri1:026.86:13-1.46:161.55:387:14New Moon20Fri
21Sat12:348.21:407.26:54-1.07:091.15:397:13Waxing Crescent21Sat
22Sun1:287.72:197.47:34-0.48:040.85:407:11Waxing Crescent22Sun
23Mon2:247.02:587.68:150.59:020.75:417:10Waxing Crescent23Mon
24Tue3:256.23:407.68:571.410:030.65:427:08First Quarter24Tue
25Wed4:345.54:267.49:422.311:100.65:437:07First Quarter25Wed
26Thu5:555.05:177.210:353.15:447:05First Quarter26Thu
27Fri7:314.96:177.012:210.611:43 AM3.75:457:04First Quarter27Fri
28Sat9:025.17:206.91:310.51:013.95:467:02Waxing Gibbous28Sat
29Sun10:035.38:226.92:330.32:133.85:477:00Waxing Gibbous29Sun
30Mon10:445.69:177.03:250.23:103.55:486:59Waxing Gibbous30Mon
31Tue11:165.710:047.14:080.03:573.25:496:57Waxing Gibbous31Tue
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