Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 8:26 pm (1.9 ft)
Next high tide : in 47m at 4:01 pm (2.6 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 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:362.67:064.32:370.21:351.47:026:50Third Quarter1Mon
2Tue9:542.68:044.03:460.12:401.67:036:48Third Quarter2Tue
3Wed11:082.89:173.74:530.13:591.77:046:47Third Quarter3Wed
4Thu12:113.05:560.15:201.77:056:45Third Quarter4Thu
5Fri1:033.36:510.06:331.57:066:44Waning Crescent5Fri
6Sat12:043.41:473.57:400.07:381.27:066:42Waning Crescent6Sat
7Sun1:093.42:243.78:230.18:341.07:076:41Waning Crescent7Sun
8Mon2:033.32:583.89:010.29:250.77:086:39Waning Crescent8Mon
9Tue2:513.33:273.89:340.510:130.57:096:38New Moon9Tue
10Wed3:373.23:533.910:040.710:570.47:106:36New Moon10Wed
11Thu4:233.04:153.910:290.911:410.37:116:35New Moon11Thu
12Fri5:112.94:353.910:521.17:126:33New Moon12Fri
13Sat6:022.74:544.012:230.211:16 AM1.27:136:32Waxing Crescent13Sat
14Sun6:572.65:194.01:060.211:47 AM1.47:146:31Waxing Crescent14Sun
15Mon7:562.55:523.91:500.212:261.57:156:29Waxing Crescent15Mon
16Tue8:572.56:323.82:390.31:131.77:166:28Waxing Crescent16Tue
17Wed9:592.67:193.63:310.32:111.87:176:26First Quarter17Wed
18Thu10:562.78:183.44:270.33:211.87:186:25First Quarter18Thu
19Fri11:472.89:353.25:210.34:391.77:196:24First Quarter19Fri
20Sat12:283.06:110.35:521.57:206:22First Quarter20Sat
21Sun1:033.26:570.46:581.27:216:21Waxing Gibbous21Sun
22Mon12:333.11:333.47:380.47:570.97:226:20Waxing Gibbous22Mon
23Tue1:353.22:013.68:170.58:540.57:236:18Waxing Gibbous23Tue
24Wed2:313.12:303.98:550.79:500.27:246:17Full Moon24Wed
25Thu3:253.03:014.29:310.810:44-0.17:256:16Full Moon25Thu
26Fri4:212.93:364.410:091.011:38-0.27:266:15Full Moon26Fri
27Sat5:202.74:154.510:491.17:276:13Waning Gibbous27Sat
28Sun6:252.64:584.512:32-0.411:34 AM1.37:286:12Waning Gibbous28Sun
29Mon7:342.65:444.31:28-0.412:251.57:296:11Waning Gibbous29Mon
30Tue8:422.66:374.02:24-0.31:251.67:306:10Waning Gibbous30Tue
31Wed9:482.87:383.63:22-0.32:371.77:316:09Third Quarter31Wed
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 6:13 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 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