Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 7:19 pm (2.5 ft)
Next high tide : in 2h 37m at 2:34 pm (6.3 ft)
Sunset today : 8:47 pm
Sunrise tomorrow : 5:58 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Mar 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:058.011:316.53:482.74:41-0.96:486:08Full Moon1Sat
2Sun10:598.14:411.95:21-0.96:476:09Full Moon2Sun
3Mon12:057.111:53 AM8.05:321.16:00-0.56:456:11Full Moon3Mon
4Tue12:397.612:467.66:230.46:380.06:436:12Full Moon4Tue
5Wed1:158.01:407.17:140.07:170.76:426:13Waning Gibbous5Wed
6Thu1:528.22:376.48:07-0.27:571.56:406:14Waning Gibbous6Thu
7Fri2:338.23:405.89:02-0.28:402.36:396:15Waning Gibbous7Fri
8Sat3:178.04:525.210:03-0.19:303.06:376:16Third Quarter8Sat
9Sun5:097.67:184.912:100.27:357:17Third Quarter9Sun
10Mon6:107.28:535.01:240.37:347:18Third Quarter10Mon
11Tue7:226.910:085.212:553.82:370.47:327:19Third Quarter11Tue
12Wed8:356.710:585.52:213.73:380.37:317:21Waning Crescent12Wed
13Thu9:416.711:345.73:333.34:280.27:297:22Waning Crescent13Thu
14Fri10:366.74:282.85:080.27:277:23Waning Crescent14Fri
15Sat12:036.011:23 AM6.75:132.35:410.37:267:24Waning Crescent15Sat
16Sun12:276.212:066.75:531.86:120.57:247:25New Moon16Sun
17Mon12:516.512:456.56:291.46:400.87:227:26New Moon17Mon
18Tue1:146.71:246.47:051.07:071.27:217:27New Moon18Tue
19Wed1:376.92:046.17:400.77:341.67:197:28New Moon19Wed
20Thu2:017.02:445.88:150.68:012.17:177:29Waxing Crescent20Thu
21Fri2:267.13:285.58:530.48:272.57:167:30Waxing Crescent21Fri
22Sat2:537.04:185.19:340.48:552.97:147:31Waxing Crescent22Sat
23Sun3:237.05:174.810:220.59:273.37:127:32Waxing Crescent23Sun
24Mon4:026.96:294.511:190.510:113.67:117:33First Quarter24Mon
25Tue4:556.77:514.512:250.57:097:34First Quarter25Tue
26Wed6:076.69:024.81:340.37:077:36First Quarter26Wed
27Thu7:276.69:535.21:073.72:380.07:067:37First Quarter27Thu
28Fri8:446.710:335.72:333.23:32-0.27:047:38Waxing Gibbous28Fri
29Sat9:536.911:096.33:402.44:20-0.37:027:39Waxing Gibbous29Sat
30Sun10:557.111:447.04:381.55:04-0.27:017:40Waxing Gibbous30Sun
31Mon11:537.15:300.55:450.16:597:41Full Moon31Mon
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 4:56 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 spring phase. Tonight's moon is 3% 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 (3% 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