Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 53m at 5:28 pm (0.9 ft)
Next high tide (tomorrow) : 12:08 am (4.2 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:412.82:273.78:370.99:590.27:336:07Waning Crescent1Fri
2Sat3:272.82:493.99:111.010:450.07:346:06New Moon2Sat
3Sun3:142.82:194.18:491.110:30-0.16:355:05New Moon3Sun
4Mon4:032.72:564.29:311.111:16-0.26:365:04New Moon4Mon
5Tue4:562.73:394.310:171.26:375:03Waxing Crescent5Tue
6Wed5:522.74:274.212:04-0.311:09 AM1.26:385:02Waxing Crescent6Wed
7Thu6:502.85:214.012:55-0.312:081.36:395:01Waxing Crescent7Thu
8Fri7:502.96:233.71:48-0.21:171.36:405:00First Quarter8Fri
9Sat8:503.17:413.32:44-0.12:351.36:414:59First Quarter9Sat
10Sun9:483.39:143.03:400.03:551.16:424:58First Quarter10Sun
11Mon10:423.610:402.94:340.15:100.96:434:57First Quarter11Mon
12Tue11:313.811:512.85:260.26:170.66:454:56Waxing Gibbous12Tue
13Wed12:154.06:150.37:180.36:464:56Waxing Gibbous13Wed
14Thu12:522.812:544.17:010.58:130.06:474:55Waxing Gibbous14Thu
15Fri1:472.81:294.27:440.79:04-0.26:484:54Full Moon15Fri
16Sat2:392.82:024.28:250.99:50-0.36:494:53Full Moon16Sat
17Sun3:302.82:334.19:051.110:34-0.46:504:53Full Moon17Sun
18Mon4:212.83:044.19:441.311:15-0.46:514:52Full Moon18Mon
19Tue5:112.83:374.010:231.411:54-0.36:524:51Waning Gibbous19Tue
20Wed6:012.84:123.911:041.46:534:51Waning Gibbous20Wed
21Thu6:502.94:513.712:31-0.211:50 AM1.56:544:50Waning Gibbous21Thu
22Fri7:383.05:363.51:08-0.112:411.56:554:50Waning Gibbous22Fri
23Sat8:263.06:273.21:460.11:401.56:564:49Third Quarter23Sat
24Sun9:133.17:302.92:260.22:461.56:574:49Third Quarter24Sun
25Mon9:583.28:532.73:080.43:551.46:584:48Third Quarter25Mon
26Tue10:393.310:182.63:510.55:021.26:594:48Third Quarter26Tue
27Wed11:153.511:292.54:340.76:050.97:004:48Waning Crescent27Wed
28Thu11:453.65:160.87:020.67:014:47Waning Crescent28Thu
29Fri12:292.512:123.85:581.07:540.37:024:47Waning Crescent29Fri
30Sat1:232.512:404.06:401.18:440.07:034:47Waning Crescent30Sat
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 8:48 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 transitional phase. Tonight's moon is 69% 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 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 First Quarter (69% illuminated). This places Rio Vista, 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