Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 11:45 pm (1.7 ft)
Next high tide : in 5h 24m at 6:26 pm (3.2 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:56 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:232.83:494.110:091.011:43-0.37:336:07New Moon1Wed
2Thu5:192.74:174.110:401.37:346:06New Moon2Thu
3Fri6:162.64:454.112:29-0.411:13 AM1.57:356:05Waxing Crescent3Fri
4Sat7:152.65:174.01:14-0.411:50 AM1.67:366:04Waxing Crescent4Sat
5Sun7:142.64:543.81:00-0.311:36 AM1.76:375:03Waxing Crescent5Sun
6Mon8:102.75:383.61:47-0.212:311.86:385:02Waxing Crescent6Mon
7Tue9:042.96:323.32:35-0.11:381.96:395:01First Quarter7Tue
8Wed9:543.07:463.03:230.02:551.86:405:00First Quarter8Wed
9Thu10:403.19:282.84:100.14:101.66:414:59First Quarter9Thu
10Fri11:203.310:512.74:540.35:181.46:424:58First Quarter10Fri
11Sat11:553.411:562.65:340.46:191.16:444:57Waxing Gibbous11Sat
12Sun12:233.56:110.67:130.86:454:56Waxing Gibbous12Sun
13Mon12:512.612:463.76:440.88:040.56:464:55Waxing Gibbous13Mon
14Tue1:412.51:063.97:160.98:520.36:474:55Waxing Gibbous14Tue
15Wed2:302.51:294.17:481.19:380.16:484:54Full Moon15Wed
16Thu3:202.41:594.38:241.310:24-0.16:494:53Full Moon16Thu
17Fri4:152.42:364.49:051.411:10-0.36:504:53Full Moon17Fri
18Sat5:122.43:194.59:521.511:58-0.46:514:52Waning Gibbous18Sat
19Sun6:112.44:074.410:471.56:524:51Waning Gibbous19Sun
20Mon7:102.55:014.212:47-0.411:48 AM1.66:534:51Waning Gibbous20Mon
21Tue8:062.76:013.91:39-0.312:591.66:544:50Waning Gibbous21Tue
22Wed9:002.97:143.52:32-0.22:181.56:554:50Third Quarter22Wed
23Thu9:523.28:433.13:260.03:391.36:564:49Third Quarter23Thu
24Fri10:413.510:112.94:170.14:551.06:574:49Third Quarter24Fri
25Sat11:263.811:282.85:050.36:040.76:584:48Waning Crescent25Sat
26Sun12:074.05:510.47:070.36:594:48Waning Crescent26Sun
27Mon12:332.712:434.26:330.78:050.07:004:48Waning Crescent27Mon
28Tue1:322.61:164.27:130.98:57-0.37:014:47Waning Crescent28Tue
29Wed2:282.61:474.37:511.29:45-0.57:024:47New Moon29Wed
30Thu3:222.62:154.38:291.410:30-0.67:034:47New Moon30Thu
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 9:05 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 3% 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 New Moon (3% 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