Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 23m at 5:57 am (-1.9 ft)
Next high tide : 1:06 pm (5.7 ft)
Sunset today : 8:48 pm
Sunrise tomorrow : 5:56 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Nov 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:026.212:238.26:022.37:00-0.97:476:12New Moon1Wed
2Thu1:526.112:558.16:402.87:41-1.07:496:11New Moon2Thu
3Fri2:416.01:277.97:183.38:21-0.87:506:10Waxing Crescent3Fri
4Sat3:295.82:017.67:573.69:03-0.57:516:09Waxing Crescent4Sat
5Sun3:205.61:387.27:373.98:47-0.26:525:07Waxing Crescent5Sun
6Mon4:145.42:206.78:244.19:360.26:535:06Waxing Crescent6Mon
7Tue5:135.33:116.29:244.210:290.66:545:05First Quarter7Tue
8Wed6:115.44:165.810:424.211:240.96:565:04First Quarter8Wed
9Thu7:015.65:315.512:053.96:575:03First Quarter9Thu
10Fri7:425.96:475.312:171.11:173.36:585:02First Quarter10Fri
11Sat8:156.27:585.21:071.32:122.66:595:01Waxing Gibbous11Sat
12Sun8:466.79:025.41:511.62:581.87:005:00Waxing Gibbous12Sun
13Mon9:157.210:005.52:321.93:390.97:014:59Waxing Gibbous13Mon
14Tue9:457.610:545.73:112.24:190.17:034:59Waxing Gibbous14Tue
15Wed10:168.011:465.93:502.54:59-0.67:044:58Full Moon15Wed
16Thu10:498.44:292.95:40-1.27:054:57Full Moon16Thu
17Fri12:376.011:26 AM8.65:103.26:23-1.57:064:56Full Moon17Fri
18Sat1:296.012:068.75:533.47:10-1.77:074:55Waning Gibbous18Sat
19Sun2:226.012:518.56:393.67:59-1.67:084:55Waning Gibbous19Sun
20Mon3:175.91:438.27:333.78:51-1.37:104:54Waning Gibbous20Mon
21Tue4:155.92:417.68:363.89:46-0.87:114:53Waning Gibbous21Tue
22Wed5:136.13:507.09:523.710:43-0.37:124:53Third Quarter22Wed
23Thu6:086.35:086.311:173.311:400.27:134:52Third Quarter23Thu
24Fri6:586.76:315.812:402.67:144:52Third Quarter24Fri
25Sat7:447.27:545.512:360.81:511.87:154:51Waning Crescent25Sat
26Sun8:257.69:105.51:291.42:500.97:164:51Waning Crescent26Sun
27Mon9:038.010:195.62:192.03:400.17:174:50Waning Crescent27Mon
28Tue9:408.211:185.73:062.64:25-0.57:184:50Waning Crescent28Tue
29Wed10:158.33:513.05:06-0.97:204:50New Moon29Wed
30Thu12:105.910:50 AM8.34:343.45:46-1.07:214:49New Moon30Thu
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 9:31 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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