Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:56 am (1.6 ft)
Next high tide : in 1h 13m at 8:32 pm (3.3 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:103.23:044.49:421.611:05-0.27:115:29New Moon1Tue
2Wed4:543.33:574.210:381.611:44-0.17:105:30New Moon2Wed
3Thu5:363.54:524.011:311.57:095:31Waxing Crescent3Thu
4Fri6:163.65:493.712:210.112:251.47:085:33Waxing Crescent4Fri
5Sat6:553.86:503.412:560.41:231.47:075:34Waxing Crescent5Sat
6Sun7:363.87:583.11:320.72:261.37:065:35First Quarter6Sun
7Mon8:183.99:132.92:090.93:361.27:055:36First Quarter7Mon
8Tue9:034.010:282.82:501.24:481.07:045:37First Quarter8Tue
9Wed9:524.011:392.83:371.55:550.87:035:38First Quarter9Wed
10Thu10:434.04:311.76:540.57:025:39Waxing Gibbous10Thu
11Fri12:422.911:33 AM4.15:281.87:450.37:005:40Waxing Gibbous11Fri
12Sat1:353.012:194.16:261.88:290.26:595:42Waxing Gibbous12Sat
13Sun2:223.11:024.17:211.89:080.26:585:43Waxing Gibbous13Sun
14Mon3:033.21:424.18:121.79:420.36:575:44Full Moon14Mon
15Tue3:383.22:204.18:581.610:130.36:565:45Full Moon15Tue
16Wed4:093.22:584.19:411.510:410.46:555:46Full Moon16Wed
17Thu4:333.33:394.110:221.411:070.56:535:47Full Moon17Thu
18Fri4:543.44:224.011:031.311:330.66:525:48Waning Gibbous18Fri
19Sat5:133.65:093.811:461.26:515:49Waning Gibbous19Sat
20Sun5:393.86:033.612:000.712:351.16:505:50Waning Gibbous20Sun
21Mon6:133.97:063.312:320.81:351.16:485:51Waning Gibbous21Mon
22Tue6:554.18:243.01:101.02:501.06:475:52Third Quarter22Tue
23Wed7:454.19:512.81:561.34:120.96:465:53Third Quarter23Wed
24Thu8:454.111:122.82:531.55:280.66:445:54Third Quarter24Thu
25Fri9:554.14:021.76:350.46:435:56Waning Crescent25Fri
26Sat12:222.911:10 AM4.15:201.77:340.26:425:57Waning Crescent26Sat
27Sun1:193.112:204.16:371.78:250.06:405:58Waning Crescent27Sun
28Mon2:083.21:214.17:461.69:110.06:395:59Waning Crescent28Mon
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 11:14 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 19% 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 Waxing Crescent (19% 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