Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 6:50 pm (1.5 ft)
Next high tide : in 1h 18m at 2:06 pm (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:412.89:493.75:220.54:391.67:026:50Third Quarter1Fri
2Sat12:323.06:200.55:551.47:036:48Third Quarter2Sat
3Sun1:153.27:130.47:051.27:046:46Waning Crescent3Sun
4Mon12:353.61:533.48:000.48:090.87:056:45Waning Crescent4Mon
5Tue1:403.62:283.78:430.49:090.57:066:43Waning Crescent5Tue
6Wed2:373.53:023.99:240.510:050.27:076:42New Moon6Wed
7Thu3:323.43:364.110:030.711:000.07:086:40New Moon7Thu
8Fri4:273.24:114.210:400.911:53-0.17:096:39New Moon8Fri
9Sat5:243.04:474.211:181.07:106:37Waxing Crescent9Sat
10Sun6:242.95:264.212:46-0.211:57 AM1.27:106:36Waxing Crescent10Sun
11Mon7:282.86:074.11:39-0.212:401.47:116:34Waxing Crescent11Mon
12Tue8:332.86:543.82:34-0.11:311.67:126:33Waxing Crescent12Tue
13Wed9:382.87:503.63:31-0.12:331.77:136:32First Quarter13Wed
14Thu10:393.09:073.34:280.03:471.87:146:30First Quarter14Thu
15Fri11:353.210:363.15:230.15:041.77:156:29First Quarter15Fri
16Sat12:243.36:140.16:141.47:166:27First Quarter16Sat
17Sun1:073.57:000.27:161.27:176:26Waxing Gibbous17Sun
18Mon12:593.01:443.77:410.38:110.97:186:25Waxing Gibbous18Mon
19Tue1:533.02:163.78:180.59:010.67:196:23Waxing Gibbous19Tue
20Wed2:412.92:443.88:520.79:470.57:206:22Waxing Gibbous20Wed
21Thu3:262.93:073.89:220.810:310.37:216:21Full Moon21Thu
22Fri4:102.83:273.99:511.011:120.27:226:19Full Moon22Fri
23Sat4:552.73:464.010:201.111:510.27:236:18Full Moon23Sat
24Sun5:412.64:124.110:521.27:246:17Full Moon24Sun
25Mon6:312.54:474.212:300.111:30 AM1.37:256:15Waning Gibbous25Mon
26Tue7:232.55:284.11:100.112:131.47:266:14Waning Gibbous26Tue
27Wed8:172.66:154.01:530.11:031.57:276:13Waning Gibbous27Wed
28Thu9:132.67:103.82:430.12:041.57:286:12Third Quarter28Thu
29Fri10:092.88:153.63:390.23:161.57:296:11Third Quarter29Fri
30Sat11:022.99:363.34:370.24:351.47:306:09Third Quarter30Sat
31Sun11:503.211:073.15:320.35:511.17:316:08Third Quarter31Sun
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 4:28 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 85% 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 (85% 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