Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 7h 04m at 1:22 pm (-0.7 ft)
Next high tide : 7:49 pm (3.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:113.43:543.710:020.510:300.77:036:49New Moon1Tue
2Wed3:553.34:183.710:280.711:120.67:046:47New Moon2Wed
3Thu4:383.14:373.810:500.811:540.67:056:46New Moon3Thu
4Fri5:233.04:523.911:101.07:056:44New Moon4Fri
5Sat6:112.85:113.912:350.511:35 AM1.17:066:42Waxing Crescent5Sat
6Sun7:052.65:384.01:170.512:061.37:076:41Waxing Crescent6Sun
7Mon8:062.56:144.02:040.512:441.57:086:39Waxing Crescent7Mon
8Tue9:142.56:573.92:580.51:321.67:096:38Waxing Crescent8Tue
9Wed10:232.57:493.73:590.52:321.87:106:37First Quarter9Wed
10Thu11:252.68:533.55:010.43:471.87:116:35First Quarter10Thu
11Fri12:172.85:590.35:091.77:126:34First Quarter11Fri
12Sat12:593.06:510.36:251.57:136:32Waxing Gibbous12Sat
13Sun1:343.27:380.27:311.17:146:31Waxing Gibbous13Sun
14Mon1:083.42:063.48:210.38:320.87:156:29Waxing Gibbous14Mon
15Tue2:083.42:383.79:010.49:290.57:166:28Waxing Gibbous15Tue
16Wed3:043.33:093.99:390.510:250.27:176:27Full Moon16Wed
17Thu3:593.23:434.210:160.711:200.07:186:25Full Moon17Thu
18Fri4:563.04:184.310:530.97:196:24Full Moon18Fri
19Sat5:582.84:564.412:14-0.211:32 AM1.17:206:22Waning Gibbous19Sat
20Sun7:042.75:384.31:09-0.212:141.37:216:21Waning Gibbous20Sun
21Mon8:152.66:234.12:06-0.21:031.57:226:20Waning Gibbous21Mon
22Tue9:252.77:143.83:05-0.22:041.77:236:18Third Quarter22Tue
23Wed10:312.88:183.54:05-0.23:171.87:246:17Third Quarter23Wed
24Thu11:293.09:423.25:03-0.14:361.87:256:16Third Quarter24Thu
25Fri12:203.35:56-0.15:501.67:266:15Third Quarter25Fri
26Sat1:033.56:440.06:551.37:276:13Waning Crescent26Sat
27Sun12:223.01:403.67:270.17:530.97:286:12Waning Crescent27Sun
28Mon1:223.02:143.78:050.38:450.77:296:11Waning Crescent28Mon
29Tue2:142.92:433.88:380.59:330.47:306:10Waning Crescent29Tue
30Wed3:022.83:073.89:070.810:190.27:316:09New Moon30Wed
31Thu3:482.73:273.99:321.011:020.17:326:08New Moon31Thu
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 4:35 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 10% 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 Crescent (10% 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