Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 8:26 pm (1.9 ft)
Next high tide : in 47m at 4:01 pm (2.6 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 - May 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:104.26:092.712:13-0.46:097:58New Moon1Wed
2Thu4:444.27:092.71:00-0.46:087:59Waxing Crescent2Thu
3Fri5:184.18:092.812:081.51:47-0.46:078:00Waxing Crescent3Fri
4Sat5:563.99:052.912:521.72:34-0.46:058:01Waxing Crescent4Sat
5Sun6:393.79:593.01:431.83:22-0.36:048:02Waxing Crescent5Sun
6Mon7:303.510:503.12:441.94:11-0.16:038:02First Quarter6Mon
7Tue8:333.111:383.33:521.85:000.06:028:03First Quarter7Tue
8Wed9:572.95:031.75:470.26:018:04First Quarter8Wed
9Thu12:213.411:24 AM2.76:111.46:300.46:008:05First Quarter9Thu
10Fri1:013.512:362.67:131.17:090.65:598:06Waxing Gibbous10Fri
11Sat1:343.61:372.68:090.87:440.85:588:07Waxing Gibbous11Sat
12Sun2:023.62:322.59:010.68:151.05:578:08Waxing Gibbous12Sun
13Mon2:233.73:232.59:500.38:461.25:578:09Waxing Gibbous13Mon
14Tue2:403.84:132.410:350.19:181.45:568:10Full Moon14Tue
15Wed2:583.95:062.411:18-0.19:551.55:558:11Full Moon15Wed
16Thu3:254.15:592.512:01-0.35:548:11Full Moon16Thu
17Fri4:014.26:532.612:43-0.45:538:12Full Moon17Fri
18Sat4:434.37:462.71:27-0.55:528:13Waning Gibbous18Sat
19Sun5:314.28:372.812:211.72:13-0.55:528:14Waning Gibbous19Sun
20Mon6:254.09:273.01:211.73:03-0.45:518:15Waning Gibbous20Mon
21Tue7:263.710:173.22:301.63:54-0.35:508:16Third Quarter21Tue
22Wed8:393.311:053.43:461.54:46-0.15:508:16Third Quarter22Wed
23Thu10:103.011:513.75:051.35:370.15:498:17Third Quarter23Thu
24Fri11:412.86:201.06:260.35:488:18Waning Crescent24Fri
25Sat12:353.912:582.77:300.67:130.55:488:19Waning Crescent25Sat
26Sun1:154.12:052.68:340.27:580.85:478:20Waning Crescent26Sun
27Mon1:534.23:082.59:33-0.18:421.05:478:20Waning Crescent27Mon
28Tue2:284.34:092.510:27-0.49:261.35:468:21New Moon28Tue
29Wed3:024.45:102.511:16-0.510:101.55:468:22New Moon29Wed
30Thu3:354.36:112.612:01-0.75:458:23New Moon30Thu
31Fri4:094.37:062.812:44-0.75:458:23New Moon31Fri
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 6:13 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