Tides Today & Tomorrow in Collinsville, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Collinsville, CA.
Next low tide : in 5h 40m at 1:04 pm (0.7 ft)
Next high tide : 7:17 pm (3.8 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415176
Common Questions About Tides

Collinsville, CA Tides - Jun 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:534.56:243.412:02-0.44:467:23Waxing Crescent1Wed
2Thu4:504.17:173.412:49-0.34:457:24Waxing Crescent2Thu
3Fri5:543.78:093.512:481.31:38-0.24:457:25First Quarter3Fri
4Sat7:093.39:003.62:001.12:270.04:457:25First Quarter4Sat
5Sun8:323.09:503.83:140.93:170.24:447:26First Quarter5Sun
6Mon9:522.810:383.94:250.64:070.44:447:27First Quarter6Mon
7Tue11:042.811:214.05:310.34:550.74:447:27Waxing Gibbous7Tue
8Wed12:082.86:310.05:411.04:447:28Waxing Gibbous8Wed
9Thu12:004.11:072.97:25-0.16:251.24:447:28Waxing Gibbous9Thu
10Fri12:344.12:003.08:14-0.27:081.54:437:29Waxing Gibbous10Fri
11Sat1:044.22:503.18:59-0.27:501.74:437:29Full Moon11Sat
12Sun1:304.13:373.29:41-0.28:321.84:437:30Full Moon12Sun
13Mon1:574.14:223.210:19-0.29:151.84:437:30Full Moon13Mon
14Tue2:284.15:043.210:52-0.19:581.84:437:31Full Moon14Tue
15Wed3:034.05:433.211:21-0.110:421.74:437:31Waning Gibbous15Wed
16Thu3:443.86:203.211:46-0.111:281.64:437:31Waning Gibbous16Thu
17Fri4:283.66:553.212:10-0.14:437:32Waning Gibbous17Fri
18Sat5:173.47:283.312:181.512:380.04:447:32Waning Gibbous18Sat
19Sun6:133.18:023.41:141.31:140.14:447:32Third Quarter19Sun
20Mon7:212.88:373.52:191.21:560.34:447:33Third Quarter20Mon
21Tue8:492.69:143.73:321.02:440.64:447:33Third Quarter21Tue
22Wed10:212.59:564.04:450.83:350.94:447:33Third Quarter22Wed
23Thu11:392.610:404.35:510.54:301.24:447:33Waning Crescent23Thu
24Fri12:452.86:510.25:261.44:457:33Waning Crescent24Fri
25Sat1:443.07:460.06:251.64:457:34Waning Crescent25Sat
26Sun12:164.72:393.28:37-0.27:261.74:457:34New Moon26Sun
27Mon1:064.83:313.39:26-0.38:281.74:467:34New Moon27Mon
28Tue1:594.84:203.410:12-0.49:301.64:467:34New Moon28Tue
29Wed2:534.75:083.610:56-0.410:321.54:477:34Waxing Crescent29Wed
30Thu3:484.55:553.611:38-0.311:331.34:477:34Waxing Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415176)

Common Questions About Collinsville, CA Tides

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What time does the tide turn (slack tide) in Collinsville, CA today?

Slack tide in Collinsville, CA is approximately 4:10 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 Collinsville, CA?

Collinsville, CA is currently in a transitional phase. Tonight's moon is 28% 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 Collinsville, 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 Collinsville, CA?

Tide predictions for Collinsville, 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 Collinsville, CA?

Tide data for Collinsville, CA is sourced from NOAA Station #9415176. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415176.

What is the moon phase in Collinsville, CA tonight?

Tonight the moon over Collinsville, CA is Waxing Crescent (28% illuminated). This places Collinsville, 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