Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 6h 40m at 9:25 am (-0.2 ft)
Next high tide : 3:06 pm (2.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:302.61:423.98:051.09:360.26:335:07Full Moon1Sun
2Mon3:162.62:074.18:381.210:200.06:345:06Full Moon2Mon
3Tue4:052.52:404.39:141.311:04-0.16:355:05Full Moon3Tue
4Wed4:582.53:204.49:571.311:49-0.26:365:04Waning Gibbous4Wed
5Thu5:552.54:054.410:451.46:375:03Waning Gibbous5Thu
6Fri6:542.54:564.212:38-0.211:42 AM1.56:385:02Waning Gibbous6Fri
7Sat7:522.65:543.91:30-0.212:471.56:395:01Waning Gibbous7Sat
8Sun8:492.87:023.62:26-0.12:031.56:405:00Third Quarter8Sun
9Mon9:443.18:273.23:220.03:241.36:414:59Third Quarter9Mon
10Tue10:363.39:583.04:160.14:411.06:424:58Third Quarter10Tue
11Wed11:233.611:172.95:070.25:520.76:434:57Waning Crescent11Wed
12Thu12:053.95:540.46:560.36:454:56Waning Crescent12Thu
13Fri12:242.812:434.16:380.67:550.06:464:56Waning Crescent13Fri
14Sat1:232.71:184.27:200.88:49-0.26:474:55Waning Crescent14Sat
15Sun2:182.71:504.27:591.09:39-0.46:484:54New Moon15Sun
16Mon3:122.62:204.28:371.210:25-0.56:494:53New Moon16Mon
17Tue4:072.62:494.29:151.411:09-0.66:504:53New Moon17Tue
18Wed5:012.63:214.19:551.611:51-0.56:514:52Waxing Crescent18Wed
19Thu5:542.73:554.010:371.76:524:51Waxing Crescent19Thu
20Fri6:452.84:343.812:32-0.511:24 AM1.76:534:51Waxing Crescent20Fri
21Sat7:342.95:193.61:13-0.312:171.76:544:50Waxing Crescent21Sat
22Sun8:213.06:113.31:53-0.11:171.76:554:50First Quarter22Sun
23Mon9:073.17:162.92:350.02:261.76:564:49First Quarter23Mon
24Tue9:513.28:482.73:170.23:401.56:574:49First Quarter24Tue
25Wed10:323.410:192.53:590.44:511.36:584:48First Quarter25Wed
26Thu11:083.511:322.44:390.65:571.06:594:48First Quarter26Thu
27Fri11:383.65:180.86:560.77:004:48Waxing Gibbous27Fri
28Sat12:342.412:043.85:551.07:500.57:014:47Waxing Gibbous28Sat
29Sun1:292.412:304.06:321.28:390.27:024:47Waxing Gibbous29Sun
30Mon2:222.312:594.27:121.39:260.07:034:47Full Moon30Mon
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 12:15 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 91% 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 (91% 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