Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 9:40 pm (1.9 ft)
Next high tide : in 46m at 4:54 pm (2.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:54 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Dec 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:522.85:483.81:26-0.412:491.77:044:47Waning Gibbous1Thu
2Fri8:463.16:593.42:16-0.32:041.67:054:46Third Quarter2Fri
3Sat9:373.38:223.13:06-0.13:211.57:064:46Third Quarter3Sat
4Sun10:263.69:482.83:550.14:361.27:074:46Third Quarter4Sun
5Mon11:103.811:052.74:420.35:460.97:084:46Third Quarter5Mon
6Tue11:514.05:250.56:480.57:094:46Waning Crescent6Tue
7Wed12:112.612:274.16:060.87:440.27:104:46Waning Crescent7Wed
8Thu1:112.612:594.26:441.08:35-0.17:114:46Waning Crescent8Thu
9Fri2:062.51:284.27:201.29:22-0.37:114:46Waning Crescent9Fri
10Sat2:592.51:544.27:561.510:05-0.47:124:46New Moon10Sat
11Sun3:512.62:204.28:331.610:45-0.47:134:47New Moon11Sun
12Mon4:422.62:474.29:141.711:22-0.47:144:47New Moon12Mon
13Tue5:292.73:184.19:581.811:57-0.37:144:47New Moon13Tue
14Wed6:132.83:544.010:441.87:154:47Waxing Crescent14Wed
15Thu6:542.94:363.912:31-0.211:31 AM1.87:164:48Waxing Crescent15Thu
16Fri7:323.05:223.71:04-0.112:211.87:164:48Waxing Crescent16Fri
17Sat8:083.16:143.41:380.01:171.77:174:48Waxing Crescent17Sat
18Sun8:443.27:153.22:140.22:201.67:184:49First Quarter18Sun
19Mon9:193.48:332.92:530.43:341.57:184:49First Quarter19Mon
20Tue9:543.610:102.63:340.64:501.27:194:50First Quarter20Tue
21Wed10:303.811:342.54:170.86:030.97:194:50Waxing Gibbous21Wed
22Thu11:094.15:001.07:100.57:204:51Waxing Gibbous22Thu
23Fri12:452.511:50 AM4.45:461.28:100.27:204:51Waxing Gibbous23Fri
24Sat1:502.412:334.66:351.49:06-0.27:214:52Waxing Gibbous24Sat
25Sun2:512.51:194.77:311.69:57-0.47:214:52Full Moon25Sun
26Mon3:502.52:064.78:341.710:45-0.57:214:53Full Moon26Mon
27Tue4:472.72:564.69:371.711:31-0.57:224:54Full Moon27Tue
28Wed5:402.83:494.510:381.77:224:54Waning Gibbous28Wed
29Thu6:293.04:454.212:14-0.411:39 AM1.67:224:55Waning Gibbous29Thu
30Fri7:163.25:453.812:57-0.212:421.67:224:56Waning Gibbous30Fri
31Sat8:023.46:583.41:390.01:491.57:224:57Third Quarter31Sat
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 7:17 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 1% 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 New Moon (1% 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