Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 10m at 9:25 am (-0.2 ft)
Next high tide : 3:06 pm (2.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:173.63:593.810:190.210:400.87:026:50Full Moon1Sat
2Sun4:053.44:313.810:540.411:270.67:036:48Full Moon2Sun
3Mon4:543.35:013.811:260.67:046:46Full Moon3Mon
4Tue5:453.15:293.912:130.611:55 AM0.87:056:45Waning Gibbous4Tue
5Wed6:402.95:573.912:580.512:241.07:066:43Waning Gibbous5Wed
6Thu7:402.86:263.91:460.512:551.37:076:42Waning Gibbous6Thu
7Fri8:462.77:013.82:380.51:351.57:086:40Waning Gibbous7Fri
8Sat9:542.77:443.63:350.52:261.77:096:39Third Quarter8Sat
9Sun11:012.78:383.54:360.53:311.87:096:37Third Quarter9Sun
10Mon12:012.95:350.44:451.87:106:36Third Quarter10Mon
11Tue12:523.06:280.45:551.77:116:35Third Quarter11Tue
12Wed1:333.27:150.46:581.57:126:33Waning Crescent12Wed
13Thu12:253.22:083.37:560.47:531.27:136:32Waning Crescent13Thu
14Fri1:213.32:363.38:330.48:441.07:146:30Waning Crescent14Fri
15Sat2:103.32:583.49:070.59:310.77:156:29Waning Crescent15Sat
16Sun2:553.33:183.69:390.610:180.57:166:27New Moon16Sun
17Mon3:423.33:403.810:090.711:050.37:176:26New Moon17Mon
18Tue4:303.24:084.010:410.811:540.17:186:25New Moon18Tue
19Wed5:243.04:424.211:160.97:196:23Waxing Crescent19Wed
20Thu6:232.95:234.312:450.011:55 AM1.17:206:22Waxing Crescent20Thu
21Fri7:282.76:094.21:41-0.112:411.27:216:21Waxing Crescent21Fri
22Sat8:402.77:024.02:42-0.11:371.47:226:19First Quarter22Sat
23Sun9:522.78:053.73:46-0.12:491.67:236:18First Quarter23Sun
24Mon11:012.99:263.44:50-0.14:141.67:246:17First Quarter24Mon
25Tue12:013.15:50-0.15:371.57:256:15First Quarter25Tue
26Wed12:523.46:44-0.16:501.27:266:14Waxing Gibbous26Wed
27Thu12:233.21:363.67:34-0.17:540.97:276:13Waxing Gibbous27Thu
28Fri1:273.12:143.88:180.08:510.67:286:12Waxing Gibbous28Fri
29Sat2:223.12:493.98:590.29:430.47:296:11Waxing Gibbous29Sat
30Sun3:123.03:204.09:360.410:310.27:306:10Full Moon30Sun
31Mon4:012.93:484.010:100.711:170.17:316:08Full Moon31Mon
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 12:15 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 91% 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 (91% 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