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 5h 22m at 5:28 pm (0.9 ft)
Next high tide (tomorrow) : 12:08 am (4.2 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 - Jan 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:392.92:314.59:061.410:48-0.37:234:57New Moon1Wed
2Thu4:283.03:234.410:051.311:31-0.37:234:58New Moon2Thu
3Fri5:163.24:174.211:031.37:234:59Waxing Crescent3Fri
4Sat6:053.45:154.012:14-0.212:021.37:235:00Waxing Crescent4Sat
5Sun6:543.66:203.612:57-0.11:051.27:235:01Waxing Crescent5Sun
6Mon7:443.87:313.31:410.12:131.27:235:02First Quarter6Mon
7Tue8:353.98:493.02:270.43:261.17:235:02First Quarter7Tue
8Wed9:284.010:062.93:160.64:380.97:235:03First Quarter8Wed
9Thu10:204.111:192.84:070.85:460.77:235:04First Quarter9Thu
10Fri11:104.24:591.06:470.47:235:05Waxing Gibbous10Fri
11Sat12:232.911:56 AM4.35:511.27:410.27:225:06Waxing Gibbous11Sat
12Sun1:202.912:384.36:421.38:290.07:225:07Waxing Gibbous12Sun
13Mon2:103.01:174.37:321.49:120.07:225:08Waxing Gibbous13Mon
14Tue2:573.11:544.38:201.59:510.07:225:09Full Moon14Tue
15Wed3:413.22:304.29:051.510:260.07:215:10Full Moon15Wed
16Thu4:213.23:064.19:481.510:580.17:215:11Full Moon16Thu
17Fri4:593.33:424.010:301.511:270.27:205:13Full Moon17Fri
18Sat5:333.34:203.911:121.511:530.37:205:14Waning Gibbous18Sat
19Sun6:043.45:003.811:541.57:205:15Waning Gibbous19Sun
20Mon6:313.45:453.612:180.512:391.57:195:16Waning Gibbous20Mon
21Tue6:573.56:373.312:450.61:321.57:185:17Waning Gibbous21Tue
22Wed7:273.67:423.11:190.72:361.47:185:18Third Quarter22Wed
23Thu8:053.79:052.82:000.93:501.37:175:19Third Quarter23Thu
24Fri8:533.910:292.72:491.15:031.17:175:20Third Quarter24Fri
25Sat9:494.011:422.73:441.36:100.97:165:21Third Quarter25Sat
26Sun10:494.14:451.47:100.67:155:22Waning Crescent26Sun
27Mon12:432.811:48 AM4.35:501.58:050.37:155:24Waning Crescent27Mon
28Tue1:373.012:444.46:581.58:540.17:145:25Waning Crescent28Tue
29Wed2:263.11:384.48:031.49:400.07:135:26New Moon29Wed
30Thu3:123.32:314.49:051.310:240.07:125:27New Moon30Thu
31Fri3:573.43:254.310:021.211:050.07:115:28New 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 8:48 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 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