Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 9m at 6:32 am (0.7 ft)
Next high tide : 11:48 am (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jun 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:413.88:253.212:481.61:54-0.35:458:24Waxing Crescent1Sun
2Mon6:253.59:083.31:381.62:28-0.25:448:24Waxing Crescent2Mon
3Tue7:153.39:513.42:321.63:030.05:448:25Waxing Crescent3Tue
4Wed8:133.010:343.53:331.53:380.35:448:26First Quarter4Wed
5Thu9:272.711:153.54:391.44:160.55:448:26First Quarter5Thu
6Fri10:502.511:533.65:451.24:560.75:438:27First Quarter6Fri
7Sat12:072.36:491.05:370.95:438:27First Quarter7Sat
8Sun12:263.71:142.37:480.76:191.15:438:28Waxing Gibbous8Sun
9Mon12:543.82:132.38:430.47:041.35:438:28Waxing Gibbous9Mon
10Tue1:214.03:082.49:330.17:541.45:438:29Waxing Gibbous10Tue
11Wed1:524.14:002.510:20-0.18:511.55:438:29Full Moon11Wed
12Thu2:304.34:502.611:04-0.39:511.65:438:30Full Moon12Thu
13Fri3:134.35:392.811:47-0.510:501.55:438:30Full Moon13Fri
14Sat4:014.36:273.012:30-0.55:438:31Waning Gibbous14Sat
15Sun4:524.27:143.21:12-0.55:438:31Waning Gibbous15Sun
16Mon5:474.08:013.412:471.41:55-0.45:438:31Waning Gibbous16Mon
17Tue6:483.78:493.61:491.32:39-0.35:438:32Waning Gibbous17Tue
18Wed7:573.49:393.82:571.23:25-0.15:438:32Third Quarter18Wed
19Thu9:163.010:294.04:091.14:140.25:438:32Third Quarter19Thu
20Fri10:402.711:204.25:230.95:040.45:438:33Third Quarter20Fri
21Sat11:592.66:340.65:550.75:438:33Waning Crescent21Sat
22Sun12:084.31:112.67:400.36:470.95:448:33Waning Crescent22Sun
23Mon12:534.42:152.68:390.07:391.25:448:33Waning Crescent23Mon
24Tue1:354.43:122.79:31-0.28:311.45:448:33Waning Crescent24Tue
25Wed2:144.44:062.810:18-0.49:211.55:458:33New Moon25Wed
26Thu2:514.34:572.911:01-0.410:101.65:458:33New Moon26Thu
27Fri3:274.25:443.111:40-0.410:561.75:458:33New Moon27Fri
28Sat4:044.16:273.212:15-0.45:468:33New Moon28Sat
29Sun4:424.07:073.312:48-0.25:468:33Waxing Crescent29Sun
30Mon5:223.97:453.412:261.71:17-0.15:478:33Waxing Crescent30Mon
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 9:10 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 transitional phase. Tonight's moon is 69% 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 shifting between spring and neap.

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 (69% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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