Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 5:31 pm (3.6 ft)
Next high tide : in 14m at 1:25 pm (5.2 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:47 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Apr 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:027.51:247.16:57-0.27:050.46:587:41New Moon1Mon
2Tue1:377.82:176.77:44-0.67:441.16:577:42Waxing Crescent2Tue
3Wed2:127.93:116.28:32-0.78:231.86:557:44Waxing Crescent3Wed
4Thu2:477.74:075.79:20-0.79:032.56:537:45Waxing Crescent4Thu
5Fri3:257.45:085.310:10-0.49:473.16:527:46Waxing Crescent5Fri
6Sat4:067.06:185.011:050.010:393.66:507:47First Quarter6Sat
7Sun4:566.57:404.912:070.36:487:48First Quarter7Sun
8Mon5:576.19:004.91:140.66:477:49First Quarter8Mon
9Tue7:105.89:555.11:173.82:200.66:457:50First Quarter9Tue
10Wed8:235.710:335.32:363.53:160.66:447:51Waxing Gibbous10Wed
11Thu9:285.711:025.63:363.04:010.66:427:52Waxing Gibbous11Thu
12Fri10:235.911:275.94:232.44:390.66:417:53Waxing Gibbous12Fri
13Sat11:115.911:536.35:041.85:130.76:397:54Waxing Gibbous13Sat
14Sun11:566.05:411.25:440.96:377:55Full Moon14Sun
15Mon12:186.612:406.06:170.66:141.26:367:56Full Moon15Mon
16Tue12:436.91:235.96:530.16:441.66:347:57Full Moon16Tue
17Wed1:097.12:085.87:30-0.37:152.06:337:58Full Moon17Wed
18Thu1:357.32:565.68:09-0.67:472.56:317:59Waning Gibbous18Thu
19Fri2:057.43:485.48:52-0.78:232.96:308:00Waning Gibbous19Fri
20Sat2:397.44:465.19:39-0.89:043.26:288:01Waning Gibbous20Sat
21Sun3:217.25:525.010:33-0.79:563.56:278:02Waning Gibbous21Sun
22Mon4:147.07:045.011:35-0.611:103.76:268:04Third Quarter22Mon
23Tue5:236.78:125.212:41-0.46:248:05Third Quarter23Tue
24Wed6:456.49:085.512:413.51:47-0.46:238:06Third Quarter24Wed
25Thu8:076.29:536.02:072.92:46-0.36:218:07Waning Crescent25Thu
26Fri9:236.210:336.63:182.13:39-0.16:208:08Waning Crescent26Fri
27Sat10:316.311:107.14:171.14:260.26:198:09Waning Crescent27Sat
28Sun11:336.311:467.65:100.25:100.66:178:10New Moon28Sun
29Mon12:306.25:58-0.65:521.16:168:11New Moon29Mon
30Tue12:217.81:256.16:44-1.16:321.66:158:12New Moon30Tue
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 3:28 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 99% 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 Full Moon (99% 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