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 1h 41m at 7:36 pm (1.7 ft)
Next high tide (tomorrow) : 1:55 am (4.3 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 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:284.19:262.91:161.53:09-0.36:097:58Waning Gibbous1Tue
2Wed7:273.810:263.02:231.64:08-0.36:077:59Third Quarter2Wed
3Thu8:373.511:223.23:411.65:06-0.26:068:00Third Quarter3Thu
4Fri10:083.15:021.46:02-0.16:058:01Third Quarter4Fri
5Sat12:133.511:41 AM3.06:181.26:530.16:048:02Waning Crescent5Sat
6Sun12:593.712:572.97:270.87:410.26:038:03Waning Crescent6Sun
7Mon1:403.92:012.88:300.58:260.46:028:04Waning Crescent7Mon
8Tue2:174.02:582.89:260.29:070.76:018:04Waning Crescent8Tue
9Wed2:514.13:542.710:180.09:460.96:008:05New Moon9Wed
10Thu3:224.14:492.711:06-0.210:221.25:598:06New Moon10Thu
11Fri3:504.15:452.711:50-0.310:581.45:588:07New Moon11Fri
12Sat4:184.16:412.712:33-0.45:578:08New Moon12Sat
13Sun4:474.17:352.81:14-0.45:568:09Waxing Crescent13Sun
14Mon5:204.08:272.912:141.71:54-0.45:558:10Waxing Crescent14Mon
15Tue5:583.89:163.01:001.82:34-0.35:558:11Waxing Crescent15Tue
16Wed6:413.610:043.11:521.83:15-0.25:548:12Waxing Crescent16Wed
17Thu7:303.410:513.22:521.83:580.05:538:12First Quarter17Thu
18Fri8:293.111:343.33:591.74:410.25:528:13First Quarter18Fri
19Sat9:442.85:071.65:230.45:518:14First Quarter19Sat
20Sun12:133.311:12 AM2.66:131.36:030.55:518:15First Quarter20Sun
21Mon12:463.412:292.57:141.16:410.75:508:16Waxing Gibbous21Mon
22Tue1:123.51:332.58:110.77:180.95:498:17Waxing Gibbous22Tue
23Wed1:343.72:322.59:060.47:551.15:498:17Waxing Gibbous23Wed
24Thu1:573.93:292.59:570.18:351.35:488:18Waxing Gibbous24Thu
25Fri2:254.14:272.510:47-0.29:221.55:488:19Full Moon25Fri
26Sat3:014.35:272.511:36-0.410:141.65:478:20Full Moon26Sat
27Sun3:424.46:272.612:24-0.65:478:21Full Moon27Sun
28Mon4:294.47:252.71:12-0.75:468:21Waning Gibbous28Mon
29Tue5:194.38:192.912:101.72:01-0.75:468:22Waning Gibbous29Tue
30Wed6:154.09:113.11:141.72:50-0.65:458:23Waning Gibbous30Wed
31Thu7:183.710:023.32:241.63:40-0.45:458:23Third Quarter31Thu
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 10:45 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