Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 3h 57m at 8:26 pm (1.9 ft)
Next high tide (tomorrow) : 2:27 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Sep 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:073.26:574.41:360.81:160.96:367:37Waning Gibbous1Sat
2Sun8:212.97:444.42:440.71:581.16:377:35Third Quarter2Sun
3Mon9:452.78:394.44:000.72:491.46:387:34Third Quarter3Mon
4Tue11:112.69:444.25:160.53:561.66:387:32Third Quarter4Tue
5Wed12:272.86:270.35:151.86:397:31Third Quarter5Wed
6Thu1:293.07:270.16:311.86:407:29Waning Crescent6Thu
7Fri12:114.02:193.38:190.07:401.76:417:27Waning Crescent7Fri
8Sat1:154.03:013.59:040.08:411.56:427:26Waning Crescent8Sat
9Sun2:093.93:393.69:450.09:341.36:437:24New Moon9Sun
10Mon2:573.94:123.710:210.210:231.26:447:23New Moon10Mon
11Tue3:423.74:433.710:520.411:091.06:447:21New Moon11Tue
12Wed4:273.65:103.811:200.611:530.96:457:20New Moon12Wed
13Thu5:143.45:343.811:430.86:467:18Waxing Crescent13Thu
14Fri6:033.25:563.912:370.912:041.06:477:17Waxing Crescent14Fri
15Sat6:573.06:183.91:240.812:281.16:487:15Waxing Crescent15Sat
16Sun7:582.76:453.92:140.812:591.36:497:13Waxing Crescent16Sun
17Mon9:072.67:193.93:120.81:391.56:507:12First Quarter17Mon
18Tue10:212.68:033.84:160.82:311.86:517:10First Quarter18Tue
19Wed11:312.68:593.65:200.73:361.96:517:09First Quarter19Wed
20Thu12:312.86:180.64:531.96:527:07First Quarter20Thu
21Fri1:182.97:090.56:071.86:537:06Waxing Gibbous21Fri
22Sat1:563.17:540.47:121.66:547:04Waxing Gibbous22Sat
23Sun12:533.62:263.28:350.48:101.46:557:02Waxing Gibbous23Sun
24Mon1:493.72:533.39:120.49:031.16:567:01Waxing Gibbous24Mon
25Tue2:393.73:193.69:470.59:550.86:576:59Full Moon25Tue
26Wed3:293.63:463.810:210.610:470.56:576:58Full Moon26Wed
27Thu4:193.54:164.110:540.711:390.36:586:56Full Moon27Thu
28Fri5:133.34:524.311:280.96:596:55Waning Gibbous28Fri
29Sat6:143.05:314.412:340.212:041.07:006:53Waning Gibbous29Sat
30Sun7:212.86:164.41:330.212:451.27:016:51Waning Gibbous30Sun
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 11:26 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 96% 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 (96% 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