Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 4h 04m at 8:13 pm (3.3 ft)
Next high tide (tomorrow) : 2:12 am (6.9 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Mar 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:427.09:295.212:113.81:590.56:496:08Waning Crescent1Thu
2Fri7:526.910:185.51:343.82:580.36:486:09Waning Crescent2Fri
3Sat8:546.910:525.72:433.53:450.26:466:10Waning Crescent3Sat
4Sun9:467.011:205.93:373.04:230.16:446:11Waning Crescent4Sun
5Mon10:317.011:456.24:212.64:570.26:436:12New Moon5Mon
6Tue11:126.95:012.25:260.36:416:13New Moon6Tue
7Wed12:086.411:51 AM6.85:371.85:540.66:406:14New Moon7Wed
8Thu12:326.612:296.66:131.46:210.96:386:15New Moon8Thu
9Fri12:556.81:086.36:491.16:481.46:366:17Waxing Crescent9Fri
10Sat1:207.01:486.07:260.97:141.86:356:18Waxing Crescent10Sat
11Sun1:457.13:325.69:040.88:402.37:337:19Waxing Crescent11Sun
12Mon3:127.14:235.29:470.89:082.87:327:20Waxing Crescent12Mon
13Tue3:437.15:244.810:370.79:413.27:307:21Waxing Crescent13Tue
14Wed4:247.06:404.511:370.710:253.67:287:22First Quarter14Wed
15Thu5:186.98:064.512:470.67:277:23First Quarter15Thu
16Fri6:306.99:214.81:570.37:257:24First Quarter16Fri
17Sat7:496.910:135.21:223.73:000.07:237:25Waxing Gibbous17Sat
18Sun9:037.110:545.82:463.33:54-0.37:227:26Waxing Gibbous18Sun
19Mon10:097.411:306.43:542.54:41-0.57:207:27Waxing Gibbous19Mon
20Tue11:107.54:511.65:24-0.57:187:28Waxing Gibbous20Tue
21Wed12:067.012:077.55:440.76:06-0.27:177:30Full Moon21Wed
22Thu12:427.61:027.36:34-0.16:460.37:157:31Full Moon22Thu
23Fri1:188.01:567.07:24-0.67:260.87:137:32Full Moon23Fri
24Sat1:558.22:516.68:13-0.98:071.57:127:33Waning Gibbous24Sat
25Sun2:348.23:486.19:04-0.98:492.27:107:34Waning Gibbous25Sun
26Mon3:168.04:505.69:57-0.79:362.87:087:35Waning Gibbous26Mon
27Tue4:037.65:595.210:55-0.310:303.37:077:36Third Quarter27Tue
28Wed4:567.17:195.012:000.17:057:37Third Quarter28Wed
29Thu6:006.68:405.01:090.47:037:38Third Quarter29Thu
30Fri7:136.29:435.21:043.62:170.57:027:39Third Quarter30Fri
31Sat8:266.010:275.52:263.33:150.67:007:40Waning Crescent31Sat
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 11:12 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 93% 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 Waning Gibbous (93% 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