Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 6:32 am (0.7 ft)
Next high tide : in 6h 38m 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 - Feb 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:223.21:314.48:011.49:260.07:105:29Full Moon1Wed
2Thu3:103.32:184.38:551.410:080.07:105:30Full Moon2Thu
3Fri3:553.43:034.29:461.410:470.17:095:32Full Moon3Fri
4Sat4:363.53:484.110:341.411:220.27:085:33Full Moon4Sat
5Sun5:163.64:363.911:201.311:540.47:075:34Waning Gibbous5Sun
6Mon5:533.65:253.812:061.37:065:35Waning Gibbous6Mon
7Tue6:303.76:193.512:240.612:551.37:055:36Waning Gibbous7Tue
8Wed7:073.77:193.312:540.81:491.37:045:37Waning Gibbous8Wed
9Thu7:463.78:253.11:271.02:511.37:035:38Third Quarter9Thu
10Fri8:293.79:352.92:061.23:571.27:015:39Third Quarter10Fri
11Sat9:183.710:452.92:541.45:021.17:005:41Third Quarter11Sat
12Sun10:103.711:472.93:491.56:030.96:595:42Third Quarter12Sun
13Mon11:023.74:481.66:570.86:585:43Waning Crescent13Mon
14Tue12:423.011:50 AM3.85:471.67:450.66:575:44Waning Crescent14Tue
15Wed1:283.112:333.96:441.68:280.56:565:45Waning Crescent15Wed
16Thu2:083.11:154.07:381.69:070.56:545:46Waning Crescent16Thu
17Fri2:433.21:574.18:291.49:450.46:535:47New Moon17Fri
18Sat3:163.32:424.19:181.310:210.46:525:48New Moon18Sat
19Sun3:473.53:304.110:061.110:560.56:515:49New Moon19Sun
20Mon4:203.74:214.010:551.011:320.56:495:50Waxing Crescent20Mon
21Tue4:563.85:163.811:470.96:485:51Waxing Crescent21Tue
22Wed5:374.06:183.612:100.612:440.86:475:52Waxing Crescent22Wed
23Thu6:234.17:283.412:520.81:490.86:465:54Waxing Crescent23Thu
24Fri7:154.18:443.21:400.93:010.86:445:55First Quarter24Fri
25Sat8:154.110:013.12:361.14:150.76:435:56First Quarter25Sat
26Sun9:214.011:133.13:401.35:240.66:415:57First Quarter26Sun
27Mon10:314.04:481.46:270.46:405:58Waxing Gibbous27Mon
28Tue12:163.311:36 AM4.05:541.47:220.36:395:59Waxing Gibbous28Tue
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