Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Eureka, CA.
Next low tide (tomorrow) : 2:09 am (1.3 ft)
Next high tide : in 1h 27m at 7:38 pm (6.9 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jun 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:135.35:35-0.25:102.25:478:41New Moon1Sat
2Sun1:035.56:15-0.85:502.45:468:42New Moon2Sun
3Mon12:107.71:515.76:55-1.36:322.65:468:43New Moon3Mon
4Tue12:477.92:395.77:37-1.67:152.85:468:43New Moon4Tue
5Wed1:287.93:295.88:21-1.78:032.95:458:44Waxing Crescent5Wed
6Thu2:127.84:205.89:08-1.78:563.05:458:45Waxing Crescent6Thu
7Fri3:027.55:135.99:57-1.59:573.05:458:45Waxing Crescent7Fri
8Sat3:597.06:076.010:49-1.111:082.95:458:46First Quarter8Sat
9Sun5:056.47:006.311:43-0.65:448:46First Quarter9Sun
10Mon6:195.97:516.612:252.512:40-0.15:448:47First Quarter10Mon
11Tue7:395.48:407.01:411.91:360.55:448:48First Quarter11Tue
12Wed8:595.29:257.42:501.12:321.15:448:48Waxing Gibbous12Wed
13Thu10:145.210:097.73:500.33:251.55:448:49Waxing Gibbous13Thu
14Fri11:215.410:517.94:43-0.44:162.05:448:49Waxing Gibbous14Fri
15Sat12:215.55:31-0.95:052.35:448:49Full Moon15Sat
16Sun1:135.76:15-1.35:522.65:448:50Full Moon16Sun
17Mon12:108.02:005.76:57-1.46:362.85:448:50Full Moon17Mon
18Tue12:497.82:455.87:37-1.37:203.05:448:50Full Moon18Tue
19Wed1:287.53:275.78:17-1.28:043.15:448:51Waning Gibbous19Wed
20Thu2:077.24:095.78:57-0.98:503.25:458:51Waning Gibbous20Thu
21Fri2:476.84:505.69:36-0.59:393.35:458:51Waning Gibbous21Fri
22Sat3:306.35:335.710:16-0.110:343.35:458:51Waning Gibbous22Sat
23Sun4:185.86:155.710:580.311:373.15:458:52Third Quarter23Sun
24Mon5:145.36:575.911:410.85:468:52Third Quarter24Mon
25Tue6:204.97:396.112:442.812:261.25:468:52Third Quarter25Tue
26Wed7:334.68:196.41:502.31:141.75:468:52Third Quarter26Wed
27Thu8:494.58:596.82:481.72:042.15:478:52Waning Crescent27Thu
28Fri10:004.79:387.23:391.02:552.45:478:52Waning Crescent28Fri
29Sat11:034.910:187.64:250.33:452.75:488:52Waning Crescent29Sat
30Sun11:595.211:007.95:09-0.44:342.85:488:52Waning Crescent30Sun
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 10:53 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Eureka, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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