Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 11:24 am (1.4 ft)
Next high tide : in 4h 06m at 5:46 am (5.0 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:52 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Nov 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:106.14:127.310:023.111:00-0.47:486:12Third Quarter1Sat
2Sun5:146.14:206.810:133.211:02-0.16:495:11Third Quarter2Sun
3Mon6:186.35:366.411:343.06:505:09Third Quarter3Mon
4Tue7:176.66:556.212:050.212:532.56:515:08Third Quarter4Tue
5Wed8:107.08:106.11:070.52:011.86:525:07Waning Crescent5Wed
6Thu8:567.49:186.22:030.83:001.16:535:06Waning Crescent6Thu
7Fri9:387.710:176.32:551.13:500.46:555:05Waning Crescent7Fri
8Sat10:177.911:116.33:421.44:35-0.16:565:04New Moon8Sat
9Sun10:538.04:251.85:17-0.56:575:03New Moon9Sun
10Mon12:006.311:28 AM8.05:062.15:57-0.76:585:02New Moon10Mon
11Tue12:466.312:027.95:462.56:36-0.76:595:01New Moon11Tue
12Wed1:306.212:367.76:252.87:15-0.67:015:00Waxing Crescent12Wed
13Thu2:136.11:107.47:053.17:54-0.37:024:59Waxing Crescent13Thu
14Fri2:586.01:477.07:473.48:350.07:034:58Waxing Crescent14Fri
15Sat3:455.82:276.68:343.69:180.37:044:58Waxing Crescent15Sat
16Sun4:355.83:156.19:293.710:050.77:054:57First Quarter16Sun
17Mon5:275.84:145.710:363.710:551.07:064:56First Quarter17Mon
18Tue6:185.95:245.311:503.511:481.37:084:55First Quarter18Tue
19Wed7:056.26:385.212:593.07:094:55First Quarter19Wed
20Thu7:486.57:495.212:421.51:562.47:104:54Waxing Gibbous20Thu
21Fri8:276.98:545.41:331.72:451.67:114:53Waxing Gibbous21Fri
22Sat9:057.49:525.72:211.93:290.87:124:53Waxing Gibbous22Sat
23Sun9:427.810:456.03:062.14:110.17:134:52Waxing Gibbous23Sun
24Mon10:198.211:366.23:512.24:54-0.67:144:52Full Moon24Mon
25Tue10:588.54:352.45:36-1.27:154:51Full Moon25Tue
26Wed12:266.411:39 AM8.75:202.56:21-1.57:174:51Full Moon26Wed
27Thu1:166.512:238.76:072.77:07-1.67:184:50Waning Gibbous27Thu
28Fri2:076.61:108.56:572.87:55-1.57:194:50Waning Gibbous28Fri
29Sat3:006.62:018.07:522.98:45-1.17:204:50Waning Gibbous29Sat
30Sun3:556.72:597.48:553.09:38-0.67:214:49Waning Gibbous30Sun
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 8:35 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 neap phase. Tonight's moon is 50% 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 Third Quarter (50% 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