Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 4h 43m at 10:10 am (-0.4 ft)
Next high tide : 4:01 pm (2.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:594.04:271.87:110.47:115:29Waning Crescent1Fri
2Sat12:582.811:47 AM4.05:281.97:590.37:105:30Waning Crescent2Sat
3Sun1:472.912:314.06:291.98:400.27:095:31Waning Crescent3Sun
4Mon2:303.01:114.17:251.99:170.27:085:32Waning Crescent4Mon
5Tue3:063.11:494.18:161.89:510.27:075:33New Moon5Tue
6Wed3:383.22:284.19:021.610:220.37:065:34New Moon6Wed
7Thu4:053.23:104.19:461.510:520.47:055:35New Moon7Thu
8Fri4:293.43:544.110:301.311:210.47:045:36New Moon8Fri
9Sat4:543.64:423.911:151.211:500.67:035:38Waxing Crescent9Sat
10Sun5:243.85:363.712:061.17:025:39Waxing Crescent10Sun
11Mon5:594.16:383.312:220.71:051.07:015:40Waxing Crescent11Mon
12Tue6:424.27:563.012:590.92:201.07:005:41First Quarter12Tue
13Wed7:314.39:262.71:431.23:430.96:595:42First Quarter13Wed
14Thu8:284.310:532.72:371.45:040.76:585:43First Quarter14Thu
15Fri9:344.33:441.66:150.56:575:44First Quarter15Fri
16Sat12:072.810:46 AM4.25:001.77:150.26:555:45Waxing Gibbous16Sat
17Sun1:083.011:55 AM4.26:151.78:070.16:545:46Waxing Gibbous17Sun
18Mon1:593.212:554.27:231.68:530.06:535:47Waxing Gibbous18Mon
19Tue2:433.41:494.18:231.59:350.16:525:49Full Moon19Tue
20Wed3:233.52:394.19:181.310:120.26:505:50Full Moon20Wed
21Thu4:003.63:283.910:081.210:460.46:495:51Full Moon21Thu
22Fri4:343.74:163.810:551.111:160.66:485:52Full Moon22Fri
23Sat5:063.85:073.611:421.011:430.86:465:53Waning Gibbous23Sat
24Sun5:363.86:013.412:301.06:455:54Waning Gibbous24Sun
25Mon6:053.97:013.112:081.01:220.96:445:55Waning Gibbous25Mon
26Tue6:353.98:062.912:361.22:200.96:425:56Waning Gibbous26Tue
27Wed7:093.99:172.81:111.43:240.96:415:57Third Quarter27Wed
28Thu7:503.810:272.81:561.74:300.86:405:58Third Quarter28Thu
29Fri8:443.711:312.92:531.85:320.76:385:59Third Quarter29Fri
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 1:05 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 96% 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 Gibbous (96% 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