Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 6:32 am (0.7 ft)
Next high tide : in 3h 08m at 11:26 pm (4.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:003.93:432.910:100.19:451.06:097:58Full Moon1Mon
2Tue3:293.84:322.810:54-0.110:181.16:087:58Full Moon2Tue
3Wed3:543.85:212.811:36-0.210:511.36:077:59Full Moon3Wed
4Thu4:163.86:092.812:15-0.26:068:00Full Moon4Thu
5Fri4:393.86:572.912:52-0.26:058:01Waning Gibbous5Fri
6Sat5:073.87:432.912:021.41:29-0.26:048:02Waning Gibbous6Sat
7Sun5:433.78:293.012:431.42:06-0.16:038:03Waning Gibbous7Sun
8Mon6:253.69:153.01:301.52:460.06:028:04Waning Gibbous8Mon
9Tue7:133.410:023.12:231.53:290.16:018:05Third Quarter9Tue
10Wed8:093.210:473.23:241.54:180.26:008:06Third Quarter10Wed
11Thu9:173.011:313.44:331.45:080.35:598:07Third Quarter11Thu
12Fri10:452.85:451.26:000.55:588:08Third Quarter12Fri
13Sat12:123.512:142.76:540.96:500.65:578:09Waning Crescent13Sat
14Sun12:513.71:272.77:580.67:410.75:568:09Waning Crescent14Sun
15Mon1:293.92:312.78:590.28:310.95:558:10Waning Crescent15Mon
16Tue2:074.13:322.79:57-0.19:221.05:548:11New Moon16Tue
17Wed2:474.24:332.710:51-0.310:141.25:538:12New Moon17Wed
18Thu3:304.35:342.811:42-0.511:061.25:538:13New Moon18Thu
19Fri4:144.36:352.912:31-0.65:528:14Waxing Crescent19Fri
20Sat5:014.27:333.01:20-0.65:518:15Waxing Crescent20Sat
21Sun5:514.08:283.212:541.42:08-0.65:508:15Waxing Crescent21Sun
22Mon6:463.79:213.31:521.42:56-0.45:508:16Waxing Crescent22Mon
23Tue7:473.410:133.52:551.43:45-0.25:498:17First Quarter23Tue
24Wed8:593.111:033.64:021.34:340.05:498:18First Quarter24Wed
25Thu10:172.811:503.85:101.25:230.25:488:19First Quarter25Thu
26Fri11:332.66:170.96:100.45:478:19First Quarter26Fri
27Sat12:353.912:412.67:190.66:540.65:478:20Waxing Gibbous27Sat
28Sun1:154.01:432.68:150.37:370.95:468:21Waxing Gibbous28Sun
29Mon1:514.02:392.69:070.18:171.15:468:22Waxing Gibbous29Mon
30Tue2:234.03:312.69:55-0.18:561.35:468:22Waxing Gibbous30Tue
31Wed2:524.04:222.610:38-0.29:351.45:458:23Full Moon31Wed
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 2:59 am — 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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