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 4h 38m 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 - May 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:334.54:443.110:34-0.39:491.35:116:57New Moon1Sun
2Mon3:164.55:413.111:24-0.310:421.45:106:58Waxing Crescent2Mon
3Tue4:044.46:403.112:16-0.35:086:59Waxing Crescent3Tue
4Wed4:574.27:413.11:12-0.25:077:00Waxing Crescent4Wed
5Thu5:593.88:403.212:501.42:10-0.25:067:01First Quarter5Thu
6Fri7:143.49:373.32:061.33:09-0.15:057:02First Quarter6Fri
7Sat8:433.110:293.53:261.14:060.05:047:03First Quarter7Sat
8Sun10:073.011:173.74:390.74:580.15:037:04Waxing Gibbous8Sun
9Mon11:182.911:593.85:450.45:440.35:027:05Waxing Gibbous9Mon
10Tue12:203.06:440.16:270.55:017:05Waxing Gibbous10Tue
11Wed12:374.01:163.07:37-0.17:050.85:007:06Waxing Gibbous11Wed
12Thu1:104.02:093.08:26-0.27:421.04:597:07Full Moon12Thu
13Fri1:384.02:593.19:13-0.28:171.34:587:08Full Moon13Fri
14Sat2:024.03:483.19:56-0.28:541.54:577:09Full Moon14Sat
15Sun2:254.04:363.110:36-0.29:321.64:567:10Full Moon15Sun
16Mon2:514.05:233.111:14-0.110:141.64:557:11Waning Gibbous16Mon
17Tue3:243.96:103.111:49-0.110:591.64:557:12Waning Gibbous17Tue
18Wed4:033.86:573.012:22-0.14:547:13Waning Gibbous18Wed
19Thu4:473.67:433.012:550.04:537:13Waning Gibbous19Thu
20Fri5:383.38:293.012:441.51:320.04:527:14Third Quarter20Fri
21Sat6:373.09:123.11:481.42:130.14:527:15Third Quarter21Sat
22Sun7:512.79:523.22:591.22:580.24:517:16Third Quarter22Sun
23Mon9:202.610:283.44:101.03:450.44:507:17Third Quarter23Mon
24Tue10:452.511:003.65:150.74:320.64:507:18Waning Crescent24Tue
25Wed11:552.611:313.96:140.45:180.84:497:18Waning Crescent25Wed
26Thu12:572.87:080.26:041.04:487:19Waning Crescent26Thu
27Fri12:054.21:552.97:590.06:521.34:487:20Waning Crescent27Fri
28Sat12:434.52:513.18:49-0.27:441.44:477:21New Moon28Sat
29Sun1:254.73:453.29:39-0.38:391.54:477:21New Moon29Sun
30Mon2:114.74:393.210:27-0.49:371.64:467:22New Moon30Mon
31Tue3:004.75:323.311:15-0.410:371.54:467:23Waxing Crescent31Tue
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