Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 7:31 pm (3.4 ft)
Next high tide : in 1h 57m at 3:06 pm (5.5 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Mar 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:087.01:027.06:461.36:570.56:486:08Waxing Crescent1Tue
2Wed1:357.31:506.57:300.97:281.16:476:09Waxing Crescent2Wed
3Thu2:057.52:436.08:180.68:021.86:456:10Waxing Crescent3Thu
4Fri2:397.73:455.49:120.48:382.56:446:12Waxing Crescent4Fri
5Sat3:197.85:004.910:130.39:233.16:426:13First Quarter5Sat
6Sun4:107.76:314.711:230.210:253.66:416:14First Quarter6Sun
7Mon5:147.58:074.912:390.16:396:15First Quarter7Mon
8Tue6:317.49:185.21:51-0.26:376:16Waxing Gibbous8Tue
9Wed7:487.410:075.71:263.72:53-0.56:366:17Waxing Gibbous9Wed
10Thu8:577.510:476.12:413.23:44-0.66:346:18Waxing Gibbous10Thu
11Fri9:587.611:216.53:432.54:28-0.76:326:19Waxing Gibbous11Fri
12Sat10:527.511:546.94:351.85:08-0.56:316:20Full Moon12Sat
13Sun12:417.36:231.26:44-0.17:297:21Full Moon13Sun
14Mon1:247.21:297.07:080.77:190.47:287:23Full Moon14Mon
15Tue1:547.32:156.67:510.47:521.17:267:24Waning Gibbous15Tue
16Wed2:237.43:016.18:330.38:241.77:247:25Waning Gibbous16Wed
17Thu2:527.33:495.69:160.38:552.47:237:26Waning Gibbous17Thu
18Fri3:227.24:425.210:010.59:273.07:217:27Waning Gibbous18Fri
19Sat3:556.95:444.810:510.710:023.57:197:28Third Quarter19Sat
20Sun4:356.67:014.511:490.910:483.87:187:29Third Quarter20Sun
21Mon5:286.38:374.512:571.07:167:30Third Quarter21Mon
22Tue6:366.19:524.712:084.12:060.97:147:31Third Quarter22Tue
23Wed7:516.110:335.01:444.03:060.77:137:32Waning Crescent23Wed
24Thu8:586.211:025.32:583.63:540.57:117:33Waning Crescent24Thu
25Fri9:576.411:295.73:543.14:340.37:097:34Waning Crescent25Fri
26Sat10:486.511:556.14:412.45:100.27:087:35Waning Crescent26Sat
27Sun11:376.75:231.75:430.37:067:36New Moon27Sun
28Mon12:226.612:246.76:051.06:160.57:047:37New Moon28Mon
29Tue12:497.11:126.66:460.36:490.97:037:39New Moon29Tue
30Wed1:187.52:026.47:29-0.37:231.47:017:40New Moon30Wed
31Thu1:487.82:546.18:14-0.77:592.06:597:41Waxing Crescent31Thu
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 5:18 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 97% 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 (97% 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