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 46m at 12:33 pm (1.3 ft)
Next high tide : 7:38 pm (6.9 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Dec 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:086.12:416.88:503.89:350.07:214:49Waxing Crescent1Sun
2Mon5:016.03:346.29:533.910:240.57:224:49First Quarter2Mon
3Tue5:526.14:365.711:063.711:151.07:234:49First Quarter3Tue
4Wed6:406.25:485.312:213.47:244:49First Quarter4Wed
5Thu7:236.47:025.012:071.41:272.97:254:49First Quarter5Thu
6Fri8:026.78:145.012:571.82:212.27:264:48Waxing Gibbous6Fri
7Sat8:377.09:185.21:452.13:071.57:274:48Waxing Gibbous7Sat
8Sun9:117.410:145.42:292.43:470.97:284:48Waxing Gibbous8Sun
9Mon9:447.711:055.63:112.74:250.27:294:48Waxing Gibbous9Mon
10Tue10:178.011:525.83:522.95:02-0.37:294:48Full Moon10Tue
11Wed10:528.24:323.15:40-0.77:304:49Full Moon11Wed
12Thu12:376.011:27 AM8.35:123.36:19-1.17:314:49Full Moon12Thu
13Fri1:226.112:058.35:543.47:00-1.27:324:49Full Moon13Fri
14Sat2:086.212:468.26:383.57:43-1.27:334:49Waning Gibbous14Sat
15Sun2:556.21:328.07:283.68:28-1.07:334:49Waning Gibbous15Sun
16Mon3:446.32:247.58:253.69:16-0.77:344:50Waning Gibbous16Mon
17Tue4:356.53:256.99:313.410:07-0.27:354:50Third Quarter17Tue
18Wed5:266.74:376.310:473.111:010.47:354:50Third Quarter18Wed
19Thu6:167.15:585.812:052.67:364:51Third Quarter19Thu
20Fri7:057.57:225.51:181.87:364:51Third Quarter20Fri
21Sat7:537.98:435.512:541.62:220.97:374:52Waning Crescent21Sat
22Sun8:398.39:565.71:512.13:180.17:374:52Waning Crescent22Sun
23Mon9:238.610:595.92:472.54:08-0.67:384:53Waning Crescent23Mon
24Tue10:078.711:546.23:392.84:54-1.07:384:53New Moon24Tue
25Wed10:498.74:293.15:38-1.27:394:54New Moon25Wed
26Thu12:426.311:31 AM8.65:173.36:20-1.37:394:54New Moon26Thu
27Fri1:276.412:118.36:033.47:00-1.17:394:55New Moon27Fri
28Sat2:096.412:527.96:483.57:40-0.87:404:56Waxing Crescent28Sat
29Sun2:506.31:327.57:343.58:19-0.47:404:57Waxing Crescent29Sun
30Mon3:316.32:156.98:233.68:580.17:404:57Waxing Crescent30Mon
31Tue4:126.33:016.49:173.69:390.67:404:58Waxing Crescent31Tue
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 4:05 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 neap phase. Tonight's moon is 59% 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 (59% 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