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 : 4:47 pm (0.6 ft)
Next high tide : in 4h 32m at 10:30 am (2.6 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 - May 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:054.17:233.01:16-0.56:097:58Waxing Crescent1Sun
2Mon5:503.98:203.112:481.32:05-0.46:087:59Waxing Crescent2Mon
3Tue6:393.79:153.21:411.42:54-0.36:078:00Waxing Crescent3Tue
4Wed7:343.410:083.32:391.53:44-0.26:058:01First Quarter4Wed
5Thu8:393.111:003.43:431.54:340.06:048:01First Quarter5Thu
6Fri9:562.911:493.64:501.35:240.26:038:02First Quarter6Fri
7Sat11:142.75:561.16:110.46:028:03First Quarter7Sat
8Sun12:343.712:242.76:580.96:560.66:018:04Waxing Gibbous8Sun
9Mon1:153.81:262.67:560.67:370.76:008:05Waxing Gibbous9Mon
10Tue1:513.82:212.68:480.38:160.95:598:06Waxing Gibbous10Tue
11Wed2:233.83:132.69:370.18:521.15:588:07Waxing Gibbous11Wed
12Thu2:493.84:022.610:220.09:281.35:578:08Full Moon12Thu
13Fri3:103.84:492.611:03-0.110:041.45:578:09Full Moon13Fri
14Sat3:293.85:352.711:43-0.210:421.45:568:10Full Moon14Sat
15Sun3:543.96:202.712:20-0.35:558:10Full Moon15Sun
16Mon4:284.07:042.812:57-0.35:548:11Waning Gibbous16Mon
17Tue5:094.07:482.912:081.41:34-0.35:538:12Waning Gibbous17Tue
18Wed5:553.98:323.112:561.42:13-0.25:528:13Waning Gibbous18Wed
19Thu6:473.79:173.21:511.42:57-0.25:528:14Waning Gibbous19Thu
20Fri7:463.410:053.42:541.33:450.05:518:15Third Quarter20Fri
21Sat8:563.110:533.64:051.24:370.15:508:16Third Quarter21Sat
22Sun10:252.911:413.85:211.05:300.35:508:16Third Quarter22Sun
23Mon11:552.76:340.76:230.55:498:17Waning Crescent23Mon
24Tue12:274.01:112.67:430.47:160.75:488:18Waning Crescent24Tue
25Wed1:114.12:182.68:460.18:090.95:488:19Waning Crescent25Wed
26Thu1:534.33:212.69:44-0.29:021.15:478:20Waning Crescent26Thu
27Fri2:344.34:222.710:38-0.59:541.25:478:20New Moon27Fri
28Sat3:154.35:212.811:27-0.610:461.45:468:21New Moon28Sat
29Sun3:564.26:192.912:14-0.75:468:22New Moon29Sun
30Mon4:394.17:123.012:58-0.65:458:22Waxing Crescent30Mon
31Tue5:233.98:023.212:281.51:40-0.55:458:23Waxing Crescent31Tue
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 1:38 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 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