Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 3h 38m at 10:51 am (-0.5 ft)
Next high tide : 4:51 pm (2.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Sep 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:062.56:070.94:031.96:367:36First Quarter1Fri
2Sat1:102.67:080.65:162.06:377:35First Quarter2Sat
3Sun1:592.88:010.46:321.96:387:33Waxing Gibbous3Sun
4Mon12:174.02:393.08:470.37:431.76:397:32Waxing Gibbous4Mon
5Tue1:254.13:133.19:290.28:471.56:407:30Waxing Gibbous5Tue
6Wed2:234.13:453.310:090.29:461.26:407:29Full Moon6Wed
7Thu3:184.14:173.610:460.210:411.06:417:27Full Moon7Thu
8Fri4:114.04:503.811:220.411:360.86:427:26Full Moon8Fri
9Sat5:053.85:264.011:560.56:437:24Waning Gibbous9Sat
10Sun6:033.56:044.212:320.612:310.76:447:22Waning Gibbous10Sun
11Mon7:073.26:454.31:310.61:071.06:457:21Waning Gibbous11Mon
12Tue8:182.97:304.32:350.51:481.26:467:19Third Quarter12Tue
13Wed9:372.78:224.23:450.52:381.56:467:18Third Quarter13Wed
14Thu10:572.79:234.04:560.43:421.76:477:16Third Quarter14Thu
15Fri12:092.96:030.24:571.86:487:15Third Quarter15Fri
16Sat1:083.17:010.16:101.86:497:13Waning Crescent16Sat
17Sun1:563.37:520.07:161.76:507:11Waning Crescent17Sun
18Mon12:533.72:373.58:360.08:141.56:517:10Waning Crescent18Mon
19Tue1:473.73:123.69:150.19:061.36:527:08Waning Crescent19Tue
20Wed2:353.73:443.69:490.29:531.16:527:07New Moon20Wed
21Thu3:183.64:123.710:190.410:371.06:537:05New Moon21Thu
22Fri4:003.54:363.710:450.611:180.86:547:04New Moon22Fri
23Sat4:423.34:543.811:060.811:590.86:557:02New Moon23Sat
24Sun5:253.15:093.811:260.96:567:00Waxing Crescent24Sun
25Mon6:112.95:283.912:400.711:49 AM1.16:576:59Waxing Crescent25Mon
26Tue7:042.75:554.01:230.712:191.26:586:57Waxing Crescent26Tue
27Wed8:062.66:314.02:120.712:571.46:596:56Waxing Crescent27Wed
28Thu9:182.57:153.93:110.71:431.66:596:54First Quarter28Thu
29Fri10:332.58:083.84:170.62:421.87:006:53First Quarter29Fri
30Sat11:402.69:143.65:230.53:571.97:016:51First Quarter30Sat
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 1:51 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 99% 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 Full Moon (99% 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