Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 22m at 5:23 am (1.1 ft)
Next high tide : 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 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:082.96:001.26:320.46:097:58Third Quarter1Sun
2Mon12:373.512:332.97:090.97:230.56:087:59Waning Crescent2Mon
3Tue1:163.61:422.98:130.68:130.76:068:00Waning Crescent3Tue
4Wed1:543.82:452.99:130.39:020.86:058:01Waning Crescent4Wed
5Thu2:314.03:452.910:100.09:500.96:048:02New Moon5Thu
6Fri3:104.14:452.911:03-0.310:381.06:038:02New Moon6Fri
7Sat3:514.25:462.911:55-0.511:271.26:028:03New Moon7Sat
8Sun4:344.26:482.912:46-0.56:018:04Waxing Crescent8Sun
9Mon5:204.17:473.012:171.31:35-0.56:008:05Waxing Crescent9Mon
10Tue6:093.98:453.11:101.32:26-0.55:598:06Waxing Crescent10Tue
11Wed7:033.79:403.32:081.43:16-0.35:588:07Waxing Crescent11Wed
12Thu8:043.310:343.43:111.44:08-0.25:578:08First Quarter12Thu
13Fri9:173.011:253.64:181.44:590.05:568:09First Quarter13Fri
14Sat10:362.85:261.25:490.25:568:10First Quarter14Sat
15Sun12:133.711:50 AM2.76:311.06:360.45:558:11Waxing Gibbous15Sun
16Mon12:563.812:572.77:320.77:200.65:548:11Waxing Gibbous16Mon
17Tue1:353.91:562.78:270.48:010.85:538:12Waxing Gibbous17Tue
18Wed2:103.92:502.79:180.28:401.05:528:13Waxing Gibbous18Wed
19Thu2:413.93:412.610:050.09:161.25:528:14Waxing Gibbous19Thu
20Fri3:073.94:302.710:48-0.29:521.35:518:15Full Moon20Fri
21Sat3:293.95:192.711:28-0.210:281.45:508:16Full Moon21Sat
22Sun3:503.96:052.712:06-0.35:508:16Full Moon22Sun
23Mon4:163.96:502.812:42-0.35:498:17Full Moon23Mon
24Tue4:493.97:332.91:17-0.35:488:18Waning Gibbous24Tue
25Wed5:293.98:153.012:321.51:53-0.25:488:19Waning Gibbous25Wed
26Thu6:153.78:573.11:201.52:31-0.25:478:20Waning Gibbous26Thu
27Fri7:073.69:403.32:151.53:13-0.15:478:20Third Quarter27Fri
28Sat8:063.310:253.43:191.43:590.15:468:21Third Quarter28Sat
29Sun9:193.011:093.64:311.34:490.25:468:22Third Quarter29Sun
30Mon10:502.811:543.85:461.15:410.45:458:23Third Quarter30Mon
31Tue12:182.76:570.76:340.65:458:23Waning 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 7:56 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