Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 4:47 pm (0.6 ft)
Next high tide : in 2h 28m at 10:30 am (2.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:473.710:582.83:121.35:211.17:115:29Third Quarter1Mon
2Tue10:343.84:041.46:210.97:105:30Third Quarter2Tue
3Wed12:012.811:19 AM3.85:001.67:150.77:095:31Waning Crescent3Wed
4Thu12:552.912:003.95:561.68:020.67:085:32Waning Crescent4Thu
5Fri1:433.012:404.06:511.68:450.47:075:33Waning Crescent5Fri
6Sat2:243.01:204.17:451.69:250.37:065:34Waning Crescent6Sat
7Sun3:023.12:034.28:371.510:030.37:055:35New Moon7Sun
8Mon3:373.22:494.39:271.410:400.37:045:37New Moon8Mon
9Tue4:113.43:384.310:171.211:170.37:035:38New Moon9Tue
10Wed4:473.64:304.111:071.111:540.47:025:39Waxing Crescent10Wed
11Thu5:263.85:273.912:011.07:015:40Waxing Crescent11Thu
12Fri6:083.96:313.712:330.51:021.07:005:41Waxing Crescent12Fri
13Sat6:564.07:433.41:160.62:101.06:595:42First Quarter13Sat
14Sun7:494.19:013.12:040.83:240.96:585:43First Quarter14Sun
15Mon8:484.110:203.13:001.14:390.86:575:44First Quarter15Mon
16Tue9:524.111:323.14:011.25:480.66:555:45First Quarter16Tue
17Wed10:564.15:061.36:500.46:545:46Waxing Gibbous17Wed
18Thu12:353.211:54 AM4.26:091.47:440.26:535:48Waxing Gibbous18Thu
19Fri1:293.312:474.27:091.48:330.26:525:49Waxing Gibbous19Fri
20Sat2:173.41:354.18:051.39:160.26:505:50Full Moon20Sat
21Sun3:003.52:214.18:571.39:550.26:495:51Full Moon21Sun
22Mon3:403.63:054.09:441.210:310.46:485:52Full Moon22Mon
23Tue4:173.63:503.910:291.211:030.56:465:53Full Moon23Tue
24Wed4:523.64:353.811:121.111:310.76:455:54Waning Gibbous24Wed
25Thu5:243.75:233.611:551.111:580.86:445:55Waning Gibbous25Thu
26Fri5:543.76:143.512:391.16:425:56Waning Gibbous26Fri
27Sat6:223.77:103.312:260.91:291.16:415:57Waning Gibbous27Sat
28Sun6:513.78:123.112:591.12:251.16:405:58Waning Gibbous28Sun
29Mon7:263.69:203.01:391.33:281.16:385:59Third Quarter29Mon
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 1:38 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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