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 3h 59m at 8:26 pm (1.9 ft)
Next high tide (tomorrow) : 2:27 am (4.3 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 - Jun 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:454.27:562.91:25-0.65:458:24Waxing Crescent1Sat
2Sun5:254.08:423.112:301.92:04-0.55:448:25Waxing Crescent2Sun
3Mon6:103.89:263.21:231.92:42-0.45:448:25Waxing Crescent3Mon
4Tue7:003.510:083.32:201.93:20-0.25:448:26Waxing Crescent4Tue
5Wed8:003.110:503.43:241.83:580.15:438:26First Quarter5Wed
6Thu9:142.811:303.54:321.64:350.35:438:27First Quarter6Thu
7Fri10:402.55:401.45:120.65:438:28First Quarter7Fri
8Sat12:073.612:002.46:461.15:470.85:438:28First Quarter8Sat
9Sun12:393.71:102.37:470.86:211.05:438:29Waxing Gibbous9Sun
10Mon1:043.82:122.38:430.56:551.35:438:29Waxing Gibbous10Mon
11Tue1:253.93:112.39:350.27:341.55:438:30Waxing Gibbous11Tue
12Wed1:474.14:072.310:220.08:191.75:438:30Full Moon12Wed
13Thu2:174.35:032.411:06-0.29:151.85:438:30Full Moon13Thu
14Fri2:554.45:562.511:49-0.410:151.95:438:31Full Moon14Fri
15Sat3:394.56:442.712:30-0.55:438:31Full Moon15Sat
16Sun4:284.47:292.91:12-0.65:438:32Waning Gibbous16Sun
17Mon5:224.38:123.112:161.81:54-0.55:438:32Waning Gibbous17Mon
18Tue6:204.08:553.31:191.72:37-0.45:438:32Waning Gibbous18Tue
19Wed7:253.79:403.62:271.53:22-0.25:438:32Third Quarter19Wed
20Thu8:413.310:263.83:411.44:080.05:438:33Third Quarter20Thu
21Fri10:072.911:124.14:571.24:540.35:448:33Third Quarter21Fri
22Sat11:332.711:584.36:130.95:410.65:448:33Third Quarter22Sat
23Sun12:502.57:240.56:280.95:448:33Waning Crescent23Sun
24Mon12:414.42:002.58:280.27:151.25:458:33Waning Crescent24Mon
25Tue1:214.53:052.59:25-0.28:041.55:458:33Waning Crescent25Tue
26Wed1:594.54:062.610:16-0.48:551.75:458:33New Moon26Wed
27Thu2:354.55:042.711:02-0.59:461.95:468:34New Moon27Thu
28Fri3:104.45:572.911:43-0.610:372.05:468:34New Moon28Fri
29Sat3:474.36:443.012:21-0.65:468:33New Moon29Sat
30Sun4:264.27:253.212:56-0.55:478:33Waxing Crescent30Sun
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 11:26 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