Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 9:25 am (-0.2 ft)
Next high tide (tomorrow) : in 5h 48m at 1:22 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:272.86:493.92:27-0.31:321.57:336:07Waxing Crescent1Mon
2Tue9:352.87:503.63:26-0.32:411.67:346:06First Quarter2Tue
3Wed10:393.09:093.34:25-0.23:591.67:356:05First Quarter3Wed
4Thu11:373.210:393.15:21-0.25:171.57:366:04First Quarter4Thu
5Fri12:283.46:14-0.16:281.37:376:03First Quarter5Fri
6Sat1:113.77:020.07:311.07:386:02Waxing Gibbous6Sat
7Sun1:032.912:493.86:450.17:270.76:395:01Waxing Gibbous7Sun
8Mon12:582.91:233.97:250.38:170.46:405:00Waxing Gibbous8Mon
9Tue1:482.91:533.98:010.59:040.26:414:59Waxing Gibbous9Tue
10Wed2:362.82:204.08:340.79:470.16:424:58Full Moon10Wed
11Thu3:242.72:444.09:050.910:290.06:434:57Full Moon11Thu
12Fri4:132.63:054.09:351.111:080.06:444:56Full Moon12Fri
13Sat5:032.63:284.010:071.211:460.06:464:56Full Moon13Sat
14Sun5:542.63:584.010:431.46:474:55Waning Gibbous14Sun
15Mon6:472.64:344.012:240.011:25 AM1.56:484:54Waning Gibbous15Mon
16Tue7:392.65:163.81:030.012:131.66:494:53Waning Gibbous16Tue
17Wed8:322.76:053.61:450.11:101.76:504:53Waning Gibbous17Wed
18Thu9:222.87:033.42:330.22:181.76:514:52Third Quarter18Thu
19Fri10:092.98:153.23:240.23:321.56:524:51Third Quarter19Fri
20Sat10:523.19:443.04:160.34:441.36:534:51Third Quarter20Sat
21Sun11:293.311:073.05:050.35:521.06:544:50Waning Crescent21Sun
22Mon12:043.65:520.46:540.66:554:50Waning Crescent22Mon
23Tue12:172.912:373.86:370.67:530.26:564:49Waning Crescent23Tue
24Wed1:182.91:114.17:200.78:50-0.16:574:49Waning Crescent24Wed
25Thu2:162.81:464.38:040.99:44-0.36:584:48New Moon25Thu
26Fri3:142.82:244.48:491.110:36-0.56:594:48New Moon26Fri
27Sat4:132.73:044.49:361.211:27-0.67:004:48New Moon27Sat
28Sun5:142.73:484.310:261.47:014:47Waxing Crescent28Sun
29Mon6:162.84:344.112:17-0.611:20 AM1.57:024:47Waxing Crescent29Mon
30Tue7:162.95:263.81:07-0.612:201.67:034:47Waxing Crescent30Tue
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 5:23 am — 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 85% 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 (85% 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