Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 10:34 pm (2.5 ft)
Next high tide : in 1h 03m at 5:22 pm (6.3 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Nov 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:035.812:217.56:032.66:59-0.27:486:12New Moon1Fri
2Sat1:465.812:477.66:333.07:33-0.47:496:11New Moon2Sat
3Sun1:305.712:147.66:043.47:10-0.56:505:09Waxing Crescent3Sun
4Mon2:155.612:437.56:353.77:50-0.46:515:08Waxing Crescent4Mon
5Tue3:065.51:177.47:103.98:34-0.36:525:07Waxing Crescent5Tue
6Wed4:015.31:587.17:534.19:25-0.26:545:06Waxing Crescent6Wed
7Thu5:025.32:526.88:524.210:210.06:555:05First Quarter7Thu
8Fri6:025.44:046.410:154.211:200.26:565:04First Quarter8Fri
9Sat6:545.85:306.111:463.86:575:03First Quarter9Sat
10Sun7:386.26:555.912:180.31:053.06:585:02First Quarter10Sun
11Mon8:176.88:135.91:130.62:101.96:595:01Waxing Gibbous11Mon
12Tue8:557.59:246.02:040.93:060.87:015:00Waxing Gibbous12Tue
13Wed9:328.110:296.22:521.43:57-0.27:024:59Waxing Gibbous13Wed
14Thu10:098.611:306.33:381.84:45-1.17:034:58Full Moon14Thu
15Fri10:488.94:242.35:32-1.77:044:58Full Moon15Fri
16Sat12:276.411:29 AM9.05:102.86:19-1.97:054:57Full Moon16Sat
17Sun1:226.312:118.95:563.17:07-1.87:064:56Waning Gibbous17Sun
18Mon2:176.212:568.56:453.57:56-1.57:084:55Waning Gibbous18Mon
19Tue3:136.11:438.07:373.78:46-1.07:094:55Waning Gibbous19Tue
20Wed4:116.02:357.38:363.99:38-0.47:104:54Waning Gibbous20Wed
21Thu5:095.93:346.69:443.910:320.17:114:53Third Quarter21Thu
22Fri6:066.04:415.911:043.811:260.77:124:53Third Quarter22Fri
23Sat6:556.15:555.412:243.47:134:52Third Quarter23Sat
24Sun7:376.47:115.112:191.21:342.87:144:52Third Quarter24Sun
25Mon8:126.78:245.01:071.62:292.17:164:51Waning Crescent25Mon
26Tue8:437.09:295.11:522.13:141.47:174:51Waning Crescent26Tue
27Wed9:127.310:265.22:332.53:530.77:184:50Waning Crescent27Wed
28Thu9:427.511:165.43:132.94:290.27:194:50Waning Crescent28Thu
29Fri10:127.83:503.35:04-0.37:204:50New Moon29Fri
30Sat12:025.610:43 AM7.94:273.55:40-0.67:214:49New Moon30Sat
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 7:58 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 transitional phase. Tonight's moon is 28% 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 Crescent (28% 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