Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 6:50 pm (1.5 ft)
Next high tide : in 1h 00m at 2:06 pm (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jun 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:504.04:442.510:51-0.19:431.45:458:24New Moon1Tue
2Wed3:124.05:352.611:31-0.210:221.65:448:24New Moon2Wed
3Thu3:374.16:242.612:07-0.25:448:25New Moon3Thu
4Fri4:084.17:092.712:42-0.35:448:26New Moon4Fri
5Sat4:464.17:512.81:16-0.35:448:26Waxing Crescent5Sat
6Sun5:294.18:313.012:351.71:51-0.35:438:27Waxing Crescent6Sun
7Mon6:184.09:113.11:271.72:29-0.25:438:27Waxing Crescent7Mon
8Tue7:133.79:523.22:241.63:10-0.15:438:28First Quarter8Tue
9Wed8:163.410:353.43:301.53:560.15:438:28First Quarter9Wed
10Thu9:313.111:183.64:431.34:450.35:438:29First Quarter10Thu
11Fri10:582.95:561.05:340.55:438:29First Quarter11Fri
12Sat12:003.912:212.77:060.76:230.75:438:30Waxing Gibbous12Sat
13Sun12:424.11:342.68:130.37:131.05:438:30Waxing Gibbous13Sun
14Mon1:234.32:412.69:14-0.18:051.25:438:31Waxing Gibbous14Mon
15Tue2:034.43:442.610:10-0.49:001.45:438:31Full Moon15Tue
16Wed2:434.54:462.711:02-0.69:561.65:438:31Full Moon16Wed
17Thu3:244.55:472.811:51-0.710:521.75:438:32Full Moon17Thu
18Fri4:064.46:442.912:36-0.85:438:32Full Moon18Fri
19Sat4:514.27:353.11:20-0.75:438:32Waning Gibbous19Sat
20Sun5:384.08:223.312:411.92:02-0.65:438:33Waning Gibbous20Sun
21Mon6:293.79:083.41:371.92:43-0.45:448:33Waning Gibbous21Mon
22Tue7:283.49:523.62:381.83:24-0.15:448:33Third Quarter22Tue
23Wed8:413.010:363.73:451.74:050.15:448:33Third Quarter23Wed
24Thu10:032.711:203.94:551.54:470.45:448:33Third Quarter24Thu
25Fri11:242.66:051.35:290.75:458:33Third Quarter25Fri
26Sat12:014.012:372.57:111.06:100.95:458:33Waning Crescent26Sat
27Sun12:394.11:432.58:110.66:521.25:458:34Waning Crescent27Sun
28Mon1:144.12:432.59:040.47:351.45:468:34Waning Crescent28Mon
29Tue1:444.23:392.59:500.28:201.65:468:33Waning Crescent29Tue
30Wed2:114.24:312.610:330.09:071.75:478:33New Moon30Wed
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 4:28 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 85% 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 (85% 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