Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 12m at 7:07 pm (1.8 ft)
Next high tide (tomorrow) : 1:12 am (4.7 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jun 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:093.89:543.22:131.63:31-0.35:458:24Third Quarter1Sun
2Mon8:193.410:403.53:261.54:21-0.15:448:24Third Quarter2Mon
3Tue9:453.111:273.74:441.35:100.15:448:25Third Quarter3Tue
4Wed11:162.86:001.05:590.35:448:26Third Quarter4Wed
5Thu12:114.012:372.67:120.66:470.65:448:26Waning Crescent5Thu
6Fri12:534.21:482.68:180.37:330.85:438:27Waning Crescent6Fri
7Sat1:334.32:532.59:19-0.18:201.15:438:27Waning Crescent7Sat
8Sun2:104.43:562.510:14-0.39:071.45:438:28New Moon8Sun
9Mon2:454.44:582.611:04-0.59:551.65:438:28New Moon9Mon
10Tue3:214.45:582.711:50-0.710:431.85:438:29New Moon10Tue
11Wed3:564.36:542.812:32-0.75:438:29New Moon11Wed
12Thu4:344.27:423.01:12-0.75:438:30Waxing Crescent12Thu
13Fri5:164.08:263.112:222.01:50-0.55:438:30Waxing Crescent13Fri
14Sat6:013.89:083.31:142.02:27-0.45:438:31Waxing Crescent14Sat
15Sun6:523.59:493.42:091.93:03-0.15:438:31Waxing Crescent15Sun
16Mon7:503.210:313.53:111.83:380.15:438:31First Quarter16Mon
17Tue9:022.911:113.64:181.74:140.45:438:32First Quarter17Tue
18Wed10:272.611:483.75:271.54:490.65:438:32First Quarter18Wed
19Thu11:482.46:351.25:250.95:438:32First Quarter19Thu
20Fri12:223.81:002.37:380.96:001.15:438:33Waxing Gibbous20Fri
21Sat12:503.92:042.38:350.66:371.45:448:33Waxing Gibbous21Sat
22Sun1:134.03:042.39:260.37:181.65:448:33Waxing Gibbous22Sun
23Mon1:364.14:002.410:130.08:071.75:448:33Waxing Gibbous23Mon
24Tue2:064.34:542.410:56-0.29:041.95:448:33Full Moon24Tue
25Wed2:444.45:432.611:37-0.310:051.95:458:33Full Moon25Wed
26Thu3:284.56:282.712:17-0.45:458:34Full Moon26Thu
27Fri4:174.57:092.912:57-0.55:468:34Waning Gibbous27Fri
28Sat5:094.37:493.112:031.81:36-0.45:468:34Waning Gibbous28Sat
29Sun6:064.18:303.41:031.72:17-0.35:468:34Waning Gibbous29Sun
30Mon7:093.89:143.62:071.53:00-0.15:478:33Third Quarter30Mon
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 10:09 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 10% 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 Crescent (10% 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