Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 8:34 am (0.1 ft)
Next high tide (tomorrow) : in 5h 36m at 12:46 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Dec 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:593.48:072.92:39-0.12:581.57:044:47First Quarter1Thu
2Fri9:483.59:312.63:250.24:111.37:054:47First Quarter2Fri
3Sat10:343.710:492.54:110.45:201.07:064:46First Quarter3Sat
4Sun11:163.811:572.54:550.66:240.77:074:46Waxing Gibbous4Sun
5Mon11:554.05:370.87:200.47:074:46Waxing Gibbous5Mon
6Tue12:572.512:304.06:181.08:100.17:084:46Waxing Gibbous6Tue
7Wed1:512.51:004.16:591.28:56-0.17:094:46Waxing Gibbous7Wed
8Thu2:412.61:284.17:391.39:37-0.17:104:46Full Moon8Thu
9Fri3:292.61:544.18:211.510:15-0.27:114:46Full Moon9Fri
10Sat4:152.62:224.19:031.510:51-0.27:124:46Full Moon10Sat
11Sun4:572.72:564.19:471.511:24-0.27:124:47Full Moon11Sun
12Mon5:372.73:364.110:311.511:55-0.17:134:47Waning Gibbous12Mon
13Tue6:132.84:204.111:181.57:144:47Waning Gibbous13Tue
14Wed6:483.05:103.912:27-0.112:081.47:154:47Waning Gibbous14Wed
15Thu7:233.16:053.71:010.01:051.47:154:47Waning Gibbous15Thu
16Fri8:023.37:093.31:390.22:121.37:164:48Third Quarter16Fri
17Sat8:453.58:283.02:220.33:281.17:174:48Third Quarter17Sat
18Sun9:323.79:582.73:090.54:440.97:174:48Third Quarter18Sun
19Mon10:214.011:192.64:000.75:560.57:184:49Waning Crescent19Mon
20Tue11:104.24:520.97:020.27:184:49Waning Crescent20Tue
21Wed12:302.611:57 AM4.45:461.18:02-0.17:194:50Waning Crescent21Wed
22Thu1:332.612:434.56:441.38:56-0.47:194:50Waning Crescent22Thu
23Fri2:312.71:284.57:431.49:46-0.57:204:51New Moon23Fri
24Sat3:272.82:134.48:431.510:32-0.67:204:51New Moon24Sat
25Sun4:192.92:594.39:401.611:15-0.57:214:52New Moon25Sun
26Mon5:093.13:454.110:341.611:56-0.47:214:53Waxing Crescent26Mon
27Tue5:563.24:353.911:281.67:214:53Waxing Crescent27Tue
28Wed6:403.35:293.612:34-0.212:221.67:224:54Waxing Crescent28Wed
29Thu7:243.56:303.31:120.01:211.67:224:55Waxing Crescent29Thu
30Fri8:073.67:423.01:500.32:271.57:224:55First Quarter30Fri
31Sat8:523.79:052.72:280.53:391.37:224:56First 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 4:40 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 transitional phase. Tonight's moon is 77% 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 shifting between spring and neap.

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 (77% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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