Tides Today & Tomorrow in Collinsville, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Collinsville, CA.
Next low tide : in 5h 37m at 3:42 am (0.7 ft)
Next high tide : 9:28 am (2.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:25 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9415176
Common Questions About Tides

Collinsville, CA Tides - Dec 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:403.16:033.51:00-0.212:561.47:044:48First Quarter1Sun
2Mon8:253.27:193.11:46-0.22:101.17:054:48First Quarter2Mon
3Tue9:103.38:492.82:340.03:290.97:064:47First Quarter3Tue
4Wed9:543.610:182.73:240.24:440.57:074:47First Quarter4Wed
5Thu10:363.811:342.84:140.55:520.27:084:47Waxing Gibbous5Thu
6Fri11:174.15:040.86:53-0.17:084:47Waxing Gibbous6Fri
7Sat12:422.911:57 AM4.35:541.17:50-0.37:094:47Waxing Gibbous7Sat
8Sun1:433.012:364.56:451.48:43-0.47:104:47Full Moon8Sun
9Mon2:403.21:164.57:371.69:32-0.47:114:47Full Moon9Mon
10Tue3:343.31:574.58:301.710:19-0.47:124:47Full Moon10Tue
11Wed4:253.32:404.39:241.811:02-0.37:134:47Full Moon11Wed
12Thu5:143.33:244.110:171.711:42-0.37:134:48Waning Gibbous12Thu
13Fri6:013.34:103.811:101.67:144:48Waning Gibbous13Fri
14Sat6:453.35:003.512:18-0.212:041.57:154:48Waning Gibbous14Sat
15Sun7:283.25:563.112:51-0.11:021.37:164:48Waning Gibbous15Sun
16Mon8:103.27:032.71:230.12:061.27:164:49Third Quarter16Mon
17Tue8:503.28:252.51:550.33:141.07:174:49Third Quarter17Tue
18Wed9:273.39:492.32:310.54:230.77:184:49Third Quarter18Wed
19Thu10:013.411:052.33:120.85:270.47:184:50Third Quarter19Thu
20Fri10:323.63:571.16:240.27:194:50Waning Crescent20Fri
21Sat12:112.511:00 AM3.84:451.47:150.07:194:50Waning Crescent21Sat
22Sun1:102.711:31 AM4.05:341.68:03-0.17:204:51Waning Crescent22Sun
23Mon2:042.912:074.26:241.88:47-0.27:204:51Waning Crescent23Mon
24Tue2:523.012:484.37:161.99:28-0.27:214:52New Moon24Tue
25Wed3:383.11:334.48:081.910:06-0.37:214:53New Moon25Wed
26Thu4:193.22:204.49:011.810:42-0.47:224:53New Moon26Thu
27Fri4:593.23:104.39:541.611:17-0.47:224:54Waxing Crescent27Fri
28Sat5:363.24:034.110:481.411:51-0.37:224:54Waxing Crescent28Sat
29Sun6:133.34:593.811:451.27:234:55Waxing Crescent29Sun
30Mon6:513.46:033.412:26-0.212:481.07:234:56Waxing Crescent30Mon
31Tue7:323.57:173.01:040.01:590.97:234:57First Quarter31Tue
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 6:35 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 Collinsville, CA?

Collinsville, CA is currently in a transitional phase. Tonight's moon is 37% 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 First Quarter (37% 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