Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 11:43 pm (1.9 ft)
Next high tide : in 27m at 6:52 pm (3.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:47 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:524.39:002.812:441.62:31-0.46:097:58Waxing Crescent1Sun
2Mon6:494.09:573.01:481.63:27-0.36:077:59First Quarter2Mon
3Tue7:543.610:513.23:011.64:23-0.26:068:00First Quarter3Tue
4Wed9:143.211:423.44:181.55:17-0.16:058:01First Quarter4Wed
5Thu10:433.05:341.26:080.16:048:02First Quarter5Thu
6Fri12:283.712:042.86:440.96:560.36:038:03Waxing Gibbous6Fri
7Sat1:103.81:132.77:480.67:390.56:028:04Waxing Gibbous7Sat
8Sun1:474.02:142.78:460.28:200.86:018:05Waxing Gibbous8Sun
9Mon2:214.13:102.69:400.08:571.06:008:05Waxing Gibbous9Mon
10Tue2:504.14:052.610:29-0.39:311.35:598:06Full Moon10Tue
11Wed3:174.15:002.611:15-0.410:051.55:588:07Full Moon11Wed
12Thu3:424.15:552.611:58-0.510:401.65:578:08Full Moon12Thu
13Fri4:084.16:492.712:39-0.65:568:09Full Moon13Fri
14Sat4:374.07:392.81:18-0.55:558:10Waning Gibbous14Sat
15Sun5:113.98:262.912:041.81:56-0.45:558:11Waning Gibbous15Sun
16Mon5:513.79:113.012:531.82:34-0.35:548:12Waning Gibbous16Mon
17Tue6:363.59:543.11:481.83:13-0.25:538:13Waning Gibbous17Tue
18Wed7:273.210:353.22:481.83:520.05:528:13Third Quarter18Wed
19Thu8:272.911:143.33:531.74:330.25:518:14Third Quarter19Thu
20Fri9:452.711:483.45:021.55:140.45:518:15Third Quarter20Fri
21Sat11:212.56:101.35:530.65:508:16Third Quarter21Sat
22Sun12:183.512:422.47:150.96:310.85:498:17Waning Crescent22Sun
23Mon12:453.71:512.38:170.67:101.15:498:17Waning Crescent23Mon
24Tue1:144.02:552.39:150.37:511.35:488:18Waning Crescent24Tue
25Wed1:464.23:582.310:10-0.18:391.55:488:19New Moon25Wed
26Thu2:244.45:022.311:02-0.49:351.65:478:20New Moon26Thu
27Fri3:074.56:052.411:51-0.610:361.75:478:21New Moon27Fri
28Sat3:544.57:042.612:39-0.75:468:21Waxing Crescent28Sat
29Sun4:454.47:562.81:27-0.75:468:22Waxing Crescent29Sun
30Mon5:404.28:453.012:421.72:13-0.65:458:23Waxing Crescent30Mon
31Tue6:403.89:323.31:481.63:00-0.55:458:23Waxing Crescent31Tue
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 9:17 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 97% 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 Full Moon (97% 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