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 21m 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 - May 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:103.14:351.75:300.36:097:57First Quarter1Sun
2Mon12:133.110:29 AM3.05:431.56:190.46:087:58First Quarter2Mon
3Tue12:513.211:54 AM2.96:471.27:040.56:077:59Waxing Gibbous3Tue
4Wed1:223.31:052.97:460.97:470.76:068:00Waxing Gibbous4Wed
5Thu1:503.52:072.98:430.68:280.86:058:01Waxing Gibbous5Thu
6Fri2:163.73:052.99:380.39:091.06:048:02Waxing Gibbous6Fri
7Sat2:453.94:032.810:32-0.19:511.16:038:03Full Moon7Sat
8Sun3:194.15:032.811:24-0.310:351.26:028:04Full Moon8Sun
9Mon3:574.36:052.712:16-0.56:018:05Full Moon9Mon
10Tue4:404.37:092.81:08-0.66:008:06Waning Gibbous10Tue
11Wed5:264.28:112.812:141.52:01-0.65:598:07Waning Gibbous11Wed
12Thu6:174.09:113.01:111.62:54-0.65:588:07Waning Gibbous12Thu
13Fri7:153.710:093.22:171.63:49-0.45:578:08Third Quarter13Fri
14Sat8:253.311:043.43:311.64:43-0.35:568:09Third Quarter14Sat
15Sun9:523.011:543.64:481.55:36-0.15:558:10Third Quarter15Sun
16Mon11:192.86:011.36:250.05:548:11Third Quarter16Mon
17Tue12:403.812:352.77:091.07:120.25:548:12Waning Crescent17Tue
18Wed1:203.91:392.78:100.67:550.55:538:13Waning Crescent18Wed
19Thu1:564.02:362.69:050.38:350.75:528:14Waning Crescent19Thu
20Fri2:294.03:302.69:540.19:121.05:518:14Waning Crescent20Fri
21Sat2:584.04:242.610:40-0.19:481.25:518:15New Moon21Sat
22Sun3:244.15:172.611:23-0.310:231.45:508:16New Moon22Sun
23Mon3:494.16:102.612:03-0.35:498:17New Moon23Mon
24Tue4:144.17:012.712:40-0.45:498:18New Moon24Tue
25Wed4:444.07:492.81:16-0.35:488:18Waxing Crescent25Wed
26Thu5:194.08:342.912:221.71:51-0.35:488:19Waxing Crescent26Thu
27Fri6:003.89:173.01:101.72:25-0.25:478:20Waxing Crescent27Fri
28Sat6:463.69:593.12:021.73:02-0.15:478:21Waxing Crescent28Sat
29Sun7:393.410:403.23:011.73:420.15:468:21First Quarter29Sun
30Mon8:413.111:183.34:071.64:250.25:468:22First Quarter30Mon
31Tue9:572.911:533.45:151.45:100.45:458:23First Quarter31Tue
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