Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 1h 05m at 12:59 am (1.8 ft)
Next high tide : 6:53 am (4.9 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Mar 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:187.12:475.88:251.28:121.96:496:08Waning Gibbous1Mon
2Tue2:517.13:405.49:141.18:482.36:476:09Waning Gibbous2Tue
3Wed3:307.24:455.010:101.09:332.86:456:10Third Quarter3Wed
4Thu4:207.16:024.811:150.910:343.16:446:11Third Quarter4Thu
5Fri5:217.17:224.912:250.66:426:13Third Quarter5Fri
6Sat6:327.28:325.31:320.36:416:14Waning Crescent6Sat
7Sun7:437.49:295.81:173.12:32-0.16:396:15Waning Crescent7Sun
8Mon8:507.610:166.32:282.63:25-0.46:376:16Waning Crescent8Mon
9Tue9:517.810:586.93:301.94:13-0.66:366:17Waning Crescent9Tue
10Wed10:487.911:387.44:251.24:58-0.66:346:18New Moon10Wed
11Thu11:417.85:170.65:40-0.36:336:19New Moon11Thu
12Fri12:187.712:337.66:070.16:220.16:316:20New Moon12Fri
13Sat12:577.91:257.26:56-0.27:040.66:296:21Waxing Crescent13Sat
14Sun1:378.03:176.68:45-0.28:451.27:287:22Waxing Crescent14Sun
15Mon3:177.84:126.19:36-0.19:291.97:267:24Waxing Crescent15Mon
16Tue4:017.55:115.610:290.210:172.57:247:25Waxing Crescent16Tue
17Wed4:487.16:175.211:270.511:123.07:237:26First Quarter17Wed
18Thu5:426.77:335.012:310.87:217:27First Quarter18Thu
19Fri6:436.38:495.012:203.31:380.97:197:28First Quarter19Fri
20Sat7:506.29:505.21:363.32:410.97:187:29First Quarter20Sat
21Sun8:556.110:345.52:473.13:350.97:167:30Waxing Gibbous21Sun
22Mon9:536.211:085.83:452.74:190.87:147:31Waxing Gibbous22Mon
23Tue10:436.311:396.14:322.34:570.87:137:32Waxing Gibbous23Tue
24Wed11:296.45:141.85:320.87:117:33Waxing Gibbous24Wed
25Thu12:086.412:116.45:521.36:040.97:097:34Full Moon25Thu
26Fri12:366.712:516.46:290.96:351.07:087:35Full Moon26Fri
27Sat1:056.91:326.37:050.57:061.37:067:36Full Moon27Sat
28Sun1:347.12:136.27:420.37:381.67:047:37Full Moon28Sun
29Mon2:047.22:576.08:210.18:111.97:037:38Waning Gibbous29Mon
30Tue2:367.23:455.79:04-0.18:482.37:017:40Waning Gibbous30Tue
31Wed3:127.24:405.49:51-0.19:302.67:007:41Waning Gibbous31Wed
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 3:56 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Eureka, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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