Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 10:49 pm (2.6 ft)
Next high tide : in 55m at 5:19 pm (6.2 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - May 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:356.65:395.210:28-0.310:223.16:148:13Waning Gibbous1Mon
2Tue4:276.36:355.311:21-0.111:323.06:138:14Third Quarter2Tue
3Wed5:345.97:305.612:180.16:118:15Third Quarter3Wed
4Thu6:505.78:226.012:502.71:170.36:108:16Third Quarter4Thu
5Fri8:085.69:116.52:042.12:150.56:098:17Waning Crescent5Fri
6Sat9:235.79:567.13:091.23:100.76:088:18Waning Crescent6Sat
7Sun10:315.910:407.64:070.34:030.96:078:19Waning Crescent7Sun
8Mon11:336.111:248.05:00-0.64:531.16:068:20Waning Crescent8Mon
9Tue12:316.25:50-1.35:421.36:058:21New Moon9Tue
10Wed12:088.31:266.36:38-1.86:301.66:038:22New Moon10Wed
11Thu12:528.42:196.37:26-2.07:181.96:028:23New Moon11Thu
12Fri1:378.23:126.28:14-1.98:082.26:018:24Waxing Crescent12Fri
13Sat2:247.84:056.19:02-1.69:012.46:008:25Waxing Crescent13Sat
14Sun3:127.34:595.99:52-1.19:592.65:598:26Waxing Crescent14Sun
15Mon4:056.75:545.810:42-0.611:032.75:588:27First Quarter15Mon
16Tue5:026.06:495.811:350.05:578:28First Quarter16Tue
17Wed6:065.47:415.912:142.712:290.55:578:29First Quarter17Wed
18Thu7:165.08:296.11:272.41:231.05:568:30First Quarter18Thu
19Fri8:284.89:116.32:341.92:161.45:558:31Waxing Gibbous19Fri
20Sat9:364.89:496.53:291.43:041.75:548:31Waxing Gibbous20Sat
21Sun10:364.910:246.74:160.93:492.05:538:32Waxing Gibbous21Sun
22Mon11:295.010:597.04:570.44:312.25:538:33Waxing Gibbous22Mon
23Tue12:155.25:34-0.15:102.45:528:34Full Moon23Tue
24Wed12:585.46:11-0.55:482.55:518:35Full Moon24Wed
25Thu12:067.31:395.56:47-0.86:262.65:508:36Full Moon25Thu
26Fri12:407.32:205.57:23-0.97:032.75:508:37Full Moon26Fri
27Sat1:157.33:025.68:00-1.07:432.85:498:38Waning Gibbous27Sat
28Sun1:527.23:455.68:39-1.08:272.95:498:38Waning Gibbous28Sun
29Mon2:327.04:295.79:20-0.99:172.95:488:39Waning Gibbous29Mon
30Tue3:186.75:165.810:04-0.710:152.85:488:40Waning Gibbous30Tue
31Wed4:126.36:046.010:51-0.411:232.65:478:41Third Quarter31Wed
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 8:04 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 71% 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 Waning Gibbous (71% 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