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 2h 32m 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 - Nov 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:302.65:223.91:23-0.211:59 AM1.67:336:07Waxing Crescent1Sat
2Sun7:252.75:003.81:06-0.211:47 AM1.76:345:06Waxing Crescent2Sun
3Mon8:182.75:453.51:510.012:431.86:355:05Waxing Crescent3Mon
4Tue9:092.86:393.22:370.11:481.86:365:04First Quarter4Tue
5Wed9:573.07:473.03:250.23:021.76:375:03First Quarter5Wed
6Thu10:413.19:232.84:110.34:151.56:385:02First Quarter6Thu
7Fri11:173.210:512.74:550.45:221.36:395:01First Quarter7Fri
8Sat11:483.411:582.75:350.56:221.06:405:00Waxing Gibbous8Sat
9Sun12:143.66:130.77:190.66:424:59Waxing Gibbous9Sun
10Mon12:562.712:403.86:490.88:130.36:434:58Waxing Gibbous10Mon
11Tue1:502.61:084.17:251.09:050.06:444:57Full Moon11Tue
12Wed2:432.51:414.38:041.19:56-0.26:454:56Full Moon12Wed
13Thu3:402.52:194.58:471.310:47-0.46:464:55Full Moon13Thu
14Fri4:392.43:034.69:351.411:37-0.56:474:55Full Moon14Fri
15Sat5:412.53:504.510:301.56:484:54Waning Gibbous15Sat
16Sun6:432.64:424.212:28-0.511:30 AM1.56:494:53Waning Gibbous16Sun
17Mon7:422.75:413.91:20-0.412:381.56:504:53Waning Gibbous17Mon
18Tue8:392.96:503.52:13-0.31:531.56:514:52Third Quarter18Tue
19Wed9:333.28:133.13:06-0.13:111.46:524:51Third Quarter19Wed
20Thu10:233.49:412.93:570.04:271.16:534:51Third Quarter20Thu
21Fri11:103.711:002.74:460.25:380.86:544:50Waning Crescent21Fri
22Sat11:523.95:310.46:410.56:554:50Waning Crescent22Sat
23Sun12:072.612:294.06:130.67:380.16:574:49Waning Crescent23Sun
24Mon1:062.61:024.16:520.88:30-0.16:584:49Waning Crescent24Mon
25Tue2:002.61:314.27:291.19:18-0.36:594:48New Moon25Tue
26Wed2:532.61:584.28:041.310:02-0.47:004:48New Moon26Wed
27Thu3:452.62:244.18:391.510:43-0.57:014:48New Moon27Thu
28Fri4:362.62:514.19:171.611:22-0.57:024:47New Moon28Fri
29Sat5:252.73:214.19:591.711:59-0.47:034:47Waxing Crescent29Sat
30Sun6:122.73:563.910:441.77:044:47Waxing Crescent30Sun
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