Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:13 am (1.7 ft)
Next high tide : in 1h 57m at 7:51 pm (3.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jun 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:262.910:563.64:371.24:200.35:458:24First Quarter1Sat
2Sun10:532.711:363.95:500.95:050.65:448:24First Quarter2Sun
3Mon12:182.57:010.65:510.85:448:25Waxing Gibbous3Mon
4Tue12:184.11:332.48:090.26:391.15:448:26Waxing Gibbous4Tue
5Wed1:004.32:422.49:11-0.27:331.35:448:26Waxing Gibbous5Wed
6Thu1:434.53:472.410:08-0.58:351.55:438:27Full Moon6Thu
7Fri2:274.54:502.511:00-0.79:411.75:438:27Full Moon7Fri
8Sat3:114.45:502.711:48-0.810:451.85:438:28Full Moon8Sat
9Sun3:584.36:442.912:33-0.85:438:28Waning Gibbous9Sun
10Mon4:474.17:333.11:16-0.85:438:29Waning Gibbous10Mon
11Tue5:393.88:183.312:441.81:58-0.65:438:29Waning Gibbous11Tue
12Wed6:363.59:013.51:431.72:38-0.45:438:30Waning Gibbous12Wed
13Thu7:403.29:443.72:461.63:18-0.15:438:30Third Quarter13Thu
14Fri8:552.810:273.83:531.53:570.25:438:31Third Quarter14Fri
15Sat10:162.611:093.95:031.34:370.55:438:31Third Quarter15Sat
16Sun11:352.411:504.06:131.05:180.85:438:31Third Quarter16Sun
17Mon12:492.37:190.65:591.15:438:32Waning Crescent17Mon
18Tue12:294.11:552.38:180.36:421.35:438:32Waning Crescent18Tue
19Wed1:054.22:552.49:090.17:271.55:438:32Waning Crescent19Wed
20Thu1:374.23:502.59:55-0.18:161.75:438:33Waning Crescent20Thu
21Fri2:074.24:412.610:36-0.29:071.85:448:33New Moon21Fri
22Sat2:374.25:272.711:13-0.39:581.85:448:33New Moon22Sat
23Sun3:104.26:072.811:47-0.310:461.85:448:33New Moon23Sun
24Mon3:484.26:422.912:18-0.35:448:33New Moon24Mon
25Tue4:304.27:123.112:47-0.25:458:33Waxing Crescent25Tue
26Wed5:164.17:413.212:201.61:16-0.25:458:33Waxing Crescent26Wed
27Thu6:063.98:103.41:101.51:46-0.15:458:34Waxing Crescent27Thu
28Fri7:003.78:433.62:041.42:190.15:468:34Waxing Crescent28Fri
29Sat8:023.39:213.93:081.32:550.35:468:34First Quarter29Sat
30Sun9:172.910:044.14:211.13:360.65:478:33First Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Show All
What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 10:32 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 87% 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 Waning Gibbous (87% 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