Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 1h 37m at 4:02 am (0.2 ft)
Next high tide : 10:59 am (4.6 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Oct 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:247.212:497.56:150.46:440.37:136:59New Moon1Mon
2Tue1:127.11:247.66:540.87:270.17:146:57New Moon2Tue
3Wed1:596.81:587.57:321.38:090.07:156:55Waxing Crescent3Wed
4Thu2:456.52:317.38:091.88:510.17:166:54Waxing Crescent4Thu
5Fri3:326.13:067.18:482.49:350.47:176:52Waxing Crescent5Fri
6Sat4:235.83:446.79:282.910:230.67:186:50Waxing Crescent6Sat
7Sun5:195.54:286.410:153.311:160.97:196:49First Quarter7Sun
8Mon6:225.35:216.111:133.67:206:47First Quarter8Mon
9Tue7:305.26:265.812:151.112:263.77:216:46First Quarter9Tue
10Wed8:335.47:355.81:171.21:423.57:226:44First Quarter10Wed
11Thu9:245.68:415.82:161.12:473.27:236:42Waxing Gibbous11Thu
12Fri10:056.09:406.03:081.03:392.67:246:41Waxing Gibbous12Fri
13Sat10:416.310:326.33:530.94:232.07:256:39Waxing Gibbous13Sat
14Sun11:146.711:216.54:330.95:041.47:276:38Waxing Gibbous14Sun
15Mon11:467.15:110.95:440.77:286:36Full Moon15Mon
16Tue12:086.712:197.55:481.06:240.27:296:35Full Moon16Tue
17Wed12:546.712:527.86:251.37:06-0.37:306:33Full Moon17Wed
18Thu1:426.71:277.97:041.67:50-0.67:316:32Full Moon18Thu
19Fri2:326.62:058.07:451.98:36-0.87:326:30Waning Gibbous19Fri
20Sat3:266.42:487.98:292.49:27-0.87:336:29Waning Gibbous20Sat
21Sun4:246.13:377.69:192.810:22-0.67:346:27Waning Gibbous21Sun
22Mon5:286.04:357.310:203.111:23-0.37:356:26Third Quarter22Mon
23Tue6:376.05:446.811:333.27:376:24Third Quarter23Tue
24Wed7:446.17:016.512:290.012:553.17:386:23Third Quarter24Wed
25Thu8:456.48:186.41:340.22:132.67:396:22Waning Crescent25Thu
26Fri9:386.89:306.42:360.43:201.97:406:20Waning Crescent26Fri
27Sat10:227.210:336.43:300.64:161.27:416:19Waning Crescent27Sat
28Sun11:027.511:306.54:190.85:050.67:426:18Waning Crescent28Sun
29Mon11:397.75:031.15:490.17:436:16New Moon29Mon
30Tue12:206.512:137.85:441.56:30-0.27:456:15New Moon30Tue
31Wed1:086.412:467.86:231.97:09-0.47:466:14New Moon31Wed
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 7:30 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 spring phase. Tonight's moon is 85% 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 Waxing Gibbous (85% 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