Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 47m at 9:07 am (0.1 ft)
Next high tide : 2:57 pm (2.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:193.73:563.810:220.210:440.67:036:49Full Moon1Tue
2Wed4:123.54:313.911:000.411:370.47:036:47Full Moon2Wed
3Thu5:063.35:054.011:360.67:046:46Waning Gibbous3Thu
4Fri6:033.15:404.012:280.312:110.87:056:44Waning Gibbous4Fri
5Sat7:042.96:154.01:200.312:461.17:066:43Waning Gibbous5Sat
6Sun8:102.86:533.92:150.31:251.37:076:41Waning Gibbous6Sun
7Mon9:192.77:373.83:140.32:121.67:086:40Third Quarter7Mon
8Tue10:292.88:323.64:150.23:121.77:096:38Third Quarter8Tue
9Wed11:332.99:433.45:150.24:241.87:106:37Third Quarter9Wed
10Thu12:293.16:110.15:361.77:116:35Third Quarter10Thu
11Fri1:153.37:010.16:411.57:126:34Waning Crescent11Fri
12Sat12:163.31:563.47:450.27:391.37:136:33Waning Crescent12Sat
13Sun1:143.32:303.58:240.38:311.07:146:31Waning Crescent13Sun
14Mon2:033.23:003.58:580.49:180.87:156:30Waning Crescent14Mon
15Tue2:473.23:243.69:280.510:020.77:166:28New Moon15Tue
16Wed3:283.13:423.69:550.710:440.57:176:27New Moon16Wed
17Thu4:093.03:563.710:200.811:250.47:186:25New Moon17Thu
18Fri4:512.94:153.910:450.97:186:24New Moon18Fri
19Sat5:382.84:434.112:060.311:15 AM1.07:196:23Waxing Crescent19Sat
20Sun6:312.75:204.212:500.211:50 AM1.27:206:21Waxing Crescent20Sun
21Mon7:322.66:034.21:390.112:331.37:216:20Waxing Crescent21Mon
22Tue8:402.66:534.02:360.11:261.57:226:19Waxing Crescent22Tue
23Wed9:512.67:513.83:400.12:331.67:236:18First Quarter23Wed
24Thu10:582.89:053.54:450.13:581.67:256:16First Quarter24Thu
25Fri11:563.010:413.35:460.05:251.57:266:15First Quarter25Fri
26Sat12:463.36:420.06:421.27:276:14Waxing Gibbous26Sat
27Sun12:113.31:303.57:320.07:490.97:286:13Waxing Gibbous27Sun
28Mon1:223.22:093.78:180.18:500.57:296:11Waxing Gibbous28Mon
29Tue2:223.22:453.99:010.39:460.37:306:10Waxing Gibbous29Tue
30Wed3:163.13:184.09:410.510:390.07:316:09Full Moon30Wed
31Thu4:103.03:514.110:190.711:29-0.17:326:08Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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

Slack tide in Rio Vista, CA is approximately 12:02 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 Rio Vista, CA?

Rio Vista, CA is currently in a spring phase. Tonight's moon is 10% 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 Rio Vista, 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 Rio Vista, CA?

Tide predictions for Rio Vista, 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 Rio Vista, CA?

Tide data for Rio Vista, CA is sourced from NOAA Station #9415316. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415316.

What is the moon phase in Rio Vista, CA tonight?

Tonight the moon over Rio Vista, CA is Waning Crescent (10% illuminated). This places Rio Vista, 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