Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 10:51 am (-0.5 ft)
Next high tide : in 5h 16m at 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 - Oct 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:282.57:324.03:220.62:001.67:036:49First Quarter1Tue
2Wed10:442.58:293.84:320.53:041.77:046:47First Quarter2Wed
3Thu11:522.79:423.75:390.44:241.87:046:46First Quarter3Thu
4Fri12:462.96:390.35:491.77:056:44First Quarter4Fri
5Sat1:303.17:320.27:041.47:066:43Waxing Gibbous5Sat
6Sun12:393.62:083.38:190.18:101.17:076:41Waxing Gibbous6Sun
7Mon1:463.62:433.59:030.29:110.87:086:40Waxing Gibbous7Mon
8Tue2:443.63:173.79:440.310:070.57:096:38Full Moon8Tue
9Wed3:393.53:513.910:220.411:020.37:106:37Full Moon9Wed
10Thu4:343.34:254.110:590.611:560.17:116:35Full Moon10Thu
11Fri5:313.15:014.211:350.97:126:34Waning Gibbous11Fri
12Sat6:332.95:374.212:490.012:121.17:136:32Waning Gibbous12Sat
13Sun7:402.76:174.11:440.012:521.37:146:31Waning Gibbous13Sun
14Mon8:502.77:013.92:420.01:401.67:156:29Waning Gibbous14Mon
15Tue10:002.77:533.73:420.02:401.87:166:28Third Quarter15Tue
16Wed11:062.99:013.44:430.03:531.87:176:27Third Quarter16Wed
17Thu12:023.15:400.05:091.87:186:25Third Quarter17Thu
18Fri12:503.36:320.06:181.67:196:24Third Quarter18Fri
19Sat1:323.57:170.17:191.37:206:23Waning Crescent19Sat
20Sun12:513.12:073.67:580.28:131.07:216:21Waning Crescent20Sun
21Mon1:453.12:393.78:330.39:020.77:226:20Waning Crescent21Mon
22Tue2:333.13:063.79:040.59:480.67:236:19Waning Crescent22Tue
23Wed3:173.03:273.79:310.710:320.47:246:17New Moon23Wed
24Thu4:002.93:423.89:550.911:130.37:256:16New Moon24Thu
25Fri4:442.73:563.910:191.011:540.27:266:15New Moon25Fri
26Sat5:292.64:184.010:461.17:276:14New Moon26Sat
27Sun6:202.54:494.112:340.211:19 AM1.37:286:12Waxing Crescent27Sun
28Mon7:162.55:284.11:170.111:59 AM1.47:296:11Waxing Crescent28Mon
29Tue8:172.56:134.12:050.112:471.57:306:10Waxing Crescent29Tue
30Wed9:212.57:053.93:000.11:471.77:316:09First Quarter30Wed
31Thu10:232.68:093.64:000.13:021.77:326:08First Quarter31Thu
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 6:39 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 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