Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 6:32 am (0.7 ft)
Next high tide (tomorrow) : in 47m at 11:26 pm (4.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jul 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:134.15:322.911:33-0.210:331.75:478:33Full Moon1Sat
2Sun3:444.16:103.012:07-0.25:488:33Full Moon2Sun
3Mon4:204.16:443.212:38-0.25:488:33Waning Gibbous3Mon
4Tue5:024.17:173.312:031.61:10-0.15:498:33Waning Gibbous4Tue
5Wed5:494.07:503.512:491.61:420.05:498:33Waning Gibbous5Wed
6Thu6:403.78:273.71:411.52:170.15:508:32Waning Gibbous6Thu
7Fri7:383.59:083.92:411.42:570.35:508:32Third Quarter7Fri
8Sat8:503.19:554.03:531.33:420.55:518:32Third Quarter8Sat
9Sun10:212.810:454.25:111.14:330.75:528:32Third Quarter9Sun
10Mon11:502.711:384.46:270.95:291.05:528:31Waning Crescent10Mon
11Tue1:082.67:370.56:291.25:538:31Waning Crescent11Tue
12Wed12:304.52:152.78:390.27:331.45:548:30Waning Crescent12Wed
13Thu1:214.63:162.89:35-0.18:371.55:548:30Waning Crescent13Thu
14Fri2:104.64:133.010:25-0.39:381.65:558:29New Moon14Fri
15Sat2:584.55:063.111:11-0.410:361.65:568:29New Moon15Sat
16Sun3:464.45:553.311:54-0.411:301.65:568:28New Moon16Sun
17Mon4:344.36:413.512:34-0.35:578:28Waxing Crescent17Mon
18Tue5:234.17:243.612:231.61:11-0.15:588:27Waxing Crescent18Tue
19Wed6:153.88:063.71:151.51:470.15:598:27Waxing Crescent19Wed
20Thu7:123.58:473.82:101.52:210.36:008:26Waxing Crescent20Thu
21Fri8:153.29:313.93:091.42:560.66:008:25First Quarter21Fri
22Sat9:253.010:163.94:131.33:340.86:018:25First Quarter22Sat
23Sun10:402.811:034.05:201.24:171.16:028:24First Quarter23Sun
24Mon11:532.711:504.06:260.95:051.36:038:23First Quarter24Mon
25Tue12:592.77:260.75:581.56:048:22Waxing Gibbous25Tue
26Wed12:354.11:582.88:200.56:521.66:048:21Waxing Gibbous26Wed
27Thu1:154.12:502.99:070.37:471.76:058:20Waxing Gibbous27Thu
28Fri1:514.13:353.09:490.28:401.86:068:20Waxing Gibbous28Fri
29Sat2:244.14:163.110:270.19:301.76:078:19Full Moon29Sat
30Sun2:574.24:523.111:030.110:171.76:088:18Full Moon30Sun
31Mon3:324.25:243.311:350.111:021.66:098:17Full Moon31Mon
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 2:59 am — 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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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