Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 12:27 am (1.8 ft)
Next high tide : in 34m at 7:23 pm (3.2 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:422.56:554.22:260.61:261.57:036:49Waning Gibbous1Sun
2Mon9:582.57:494.03:330.52:271.77:046:47Third Quarter2Mon
3Tue11:082.68:563.84:430.53:431.77:046:46Third Quarter3Tue
4Wed12:072.85:480.45:071.67:056:44Third Quarter4Wed
5Thu12:553.06:450.36:241.47:066:43Waning Crescent5Thu
6Fri1:363.37:350.37:331.17:076:41Waning Crescent6Fri
7Sat1:043.62:133.58:210.38:350.77:086:40Waning Crescent7Sat
8Sun2:053.52:473.79:020.49:330.47:096:38Waning Crescent8Sun
9Mon3:013.43:213.99:410.510:280.27:106:37New Moon9Mon
10Tue3:543.33:534.110:170.711:210.07:116:35New Moon10Tue
11Wed4:493.14:264.210:520.97:126:34New Moon11Wed
12Thu5:472.94:594.212:13-0.111:27 AM1.17:136:32Waxing Crescent12Thu
13Fri6:492.85:344.11:05-0.212:031.47:146:31Waxing Crescent13Fri
14Sat7:532.76:134.01:57-0.212:441.67:156:29Waxing Crescent14Sat
15Sun8:592.76:573.82:52-0.11:341.77:166:28First Quarter15Sun
16Mon10:022.87:533.53:48-0.12:401.97:176:27First Quarter16Mon
17Tue11:012.99:133.24:440.03:581.97:186:25First Quarter17Tue
18Wed11:533.110:483.05:370.05:151.77:196:24First Quarter18Wed
19Thu12:393.36:250.16:241.57:206:23First Quarter19Thu
20Fri12:063.01:183.57:090.27:251.27:216:21Waxing Gibbous20Fri
21Sat1:083.01:523.67:470.48:180.97:226:20Waxing Gibbous21Sat
22Sun2:002.92:213.78:220.59:070.77:236:19Waxing Gibbous22Sun
23Mon2:472.92:453.78:530.79:530.57:246:17Waxing Gibbous23Mon
24Tue3:312.83:043.89:210.910:360.37:256:16Full Moon24Tue
25Wed4:152.73:223.99:491.111:170.27:266:15Full Moon25Wed
26Thu5:002.63:454.110:181.211:580.17:276:14Full Moon26Thu
27Fri5:502.54:164.210:521.37:286:12Waning Gibbous27Fri
28Sat6:442.44:554.312:390.111:32 AM1.47:296:11Waning Gibbous28Sat
29Sun7:422.45:404.21:240.012:201.57:306:10Waning Gibbous29Sun
30Mon8:422.56:314.12:140.01:171.67:316:09Waning Gibbous30Mon
31Tue9:412.67:313.83:100.02:261.67:326:08Third Quarter31Tue
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 9:55 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 93% 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 Gibbous (93% 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