36.8183’ N, 121.7470’ W

Elkhorn Slough at Elkhorn, CA

63°
H -°
L 55°
NNE
6mph
High tide
7:58 pm

Tides Today & Tomorrow in Elkhorn Slough at Elkhorn, CA

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently rising in Elkhorn Slough at Elkhorn, CA.
Next low tide (tomorrow) : 2:16 am (0.6 ft)
Next high tide : in 1h 54m at 7:58 pm (4.4 ft)
Sunset today : 6:22 pm
Sunrise tomorrow : 7:20 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #9413631
Common Questions About Tides

Elkhorn Slough at Elkhorn, CA Tides - Apr 1896

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:276.11:543.77:17-0.56:212.25:516:29Waning Gibbous1Wed
2Thu1:125.93:063.48:18-0.47:072.55:496:30Waning Gibbous2Thu
3Fri2:055.64:413.39:26-0.28:042.95:486:31Third Quarter3Fri
4Sat3:075.36:123.510:380.09:283.05:476:32Third Quarter4Sat
5Sun4:205.07:113.711:440.111:182.95:456:33Third Quarter5Sun
6Mon5:324.97:533.912:380.15:446:34Third Quarter6Mon
7Tue6:354.88:244.212:372.61:230.25:426:35Waning Crescent7Tue
8Wed7:314.78:504.41:332.22:000.45:416:35Waning Crescent8Wed
9Thu8:224.69:134.72:191.82:310.65:396:36Waning Crescent9Thu
10Fri9:074.59:364.92:591.42:580.95:386:37Waning Crescent10Fri
11Sat9:494.39:595.13:361.03:221.25:376:38New Moon11Sat
12Sun10:314.110:225.24:120.63:461.55:356:39New Moon12Sun
13Mon11:134.010:465.34:480.34:101.85:346:40New Moon13Mon
14Tue11:563.811:115.35:260.14:352.15:326:41New Moon14Tue
15Wed12:423.66:060.05:012.35:316:42Waxing Crescent15Wed
16Thu1:313.46:500.05:282.55:306:42Waxing Crescent16Thu
17Fri12:105.32:273.27:390.06:012.75:286:43Waxing Crescent17Fri
18Sat12:515.33:343.28:330.16:472.85:276:44Waxing Crescent18Sat
19Sun1:445.24:513.39:350.18:023.05:266:45First Quarter19Sun
20Mon2:525.05:533.510:380.19:453.05:246:46First Quarter20Mon
21Tue4:134.96:393.911:340.111:202.65:236:47First Quarter21Tue
22Wed5:314.87:204.412:230.15:226:48Waxing Gibbous22Wed
23Thu6:434.77:584.912:372.01:070.25:216:49Waxing Gibbous23Thu
24Fri7:544.68:355.41:421.31:480.55:196:49Waxing Gibbous24Fri
25Sat9:004.59:135.92:390.52:280.95:186:50Waxing Gibbous25Sat
26Sun10:024.39:516.23:33-0.23:081.35:176:51Full Moon26Sun
27Mon11:024.210:306.34:24-0.73:471.75:166:52Full Moon27Mon
28Tue12:014.05:16-1.04:282.15:156:53Full Moon28Tue
29Wed1:003.86:09-1.05:102.45:136:54Waning Gibbous29Wed
30Thu2:003.77:03-0.95:572.75:126:55Waning Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9413631)

Common Questions About Elkhorn Slough at Elkhorn, CA Tides

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Is this week a spring tide or neap tide in Elkhorn Slough at Elkhorn, CA?

Elkhorn Slough at Elkhorn, CA is currently in a transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

What datum are Elkhorn Slough at Elkhorn, 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 Elkhorn Slough at Elkhorn, CA?

Tide predictions for Elkhorn Slough at Elkhorn, 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 Elkhorn Slough at Elkhorn, CA?

Tide data for Elkhorn Slough at Elkhorn, CA is sourced from NOAA Station #9413631. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9413631.

What is the moon phase in Elkhorn Slough at Elkhorn, CA tonight?

Tonight the moon over Elkhorn Slough at Elkhorn, CA is Waxing Gibbous (79% illuminated). This places Elkhorn Slough at Elkhorn, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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