Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 8:26 pm (1.9 ft)
Next high tide : in 2h 05m at 4:01 pm (2.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:483.08:563.34:20-0.23:571.77:326:08Third Quarter1Thu
2Fri11:413.210:263.05:15-0.15:141.57:336:06Third Quarter2Fri
3Sat12:283.56:060.06:251.27:346:05Third Quarter3Sat
4Sun12:093.75:510.16:270.96:355:04Waning Crescent4Sun
5Mon12:453.86:320.37:230.66:365:03Waning Crescent5Mon
6Tue12:512.81:173.97:090.58:150.36:385:02Waning Crescent6Tue
7Wed1:422.81:444.07:420.89:020.16:395:01Waning Crescent7Wed
8Thu2:322.72:084.08:111.09:47-0.16:405:00New Moon8Thu
9Fri3:212.62:294.08:371.210:29-0.26:414:59New Moon9Fri
10Sat4:112.52:484.09:061.311:10-0.26:424:59New Moon10Sat
11Sun5:032.53:114.09:401.511:49-0.26:434:58New Moon11Sun
12Mon5:552.53:424.010:201.66:444:57Waxing Crescent12Mon
13Tue6:462.54:203.912:28-0.211:05 AM1.66:454:56Waxing Crescent13Tue
14Wed7:352.65:043.81:07-0.111:56 AM1.76:464:55Waxing Crescent14Wed
15Thu8:222.75:543.61:490.012:541.76:474:55Waxing Crescent15Thu
16Fri9:082.86:543.32:340.12:011.76:484:54First Quarter16Fri
17Sat9:513.08:093.13:220.23:161.56:494:53First Quarter17Sat
18Sun10:303.29:452.94:090.34:311.36:504:52First Quarter18Sun
19Mon11:063.411:122.84:550.45:421.06:524:52Waxing Gibbous19Mon
20Tue11:403.75:380.56:470.66:534:51Waxing Gibbous20Tue
21Wed12:222.712:144.06:200.77:490.26:544:51Waxing Gibbous21Wed
22Thu1:242.612:504.37:020.98:47-0.16:554:50Waxing Gibbous22Thu
23Fri2:242.61:284.57:451.19:42-0.46:564:50Full Moon23Fri
24Sat3:252.52:084.68:321.310:35-0.66:574:49Full Moon24Sat
25Sun4:272.52:504.69:231.411:25-0.66:584:49Full Moon25Sun
26Mon5:312.53:364.410:181.66:594:48Waning Gibbous26Mon
27Tue6:322.74:254.212:14-0.611:17 AM1.67:004:48Waning Gibbous27Tue
28Wed7:282.85:183.91:03-0.512:201.77:014:48Waning Gibbous28Wed
29Thu8:213.06:213.51:51-0.41:281.77:024:47Third Quarter29Thu
30Fri9:113.27:363.12:39-0.22:421.67:034:47Third Quarter30Fri
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 6:13 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 96% 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 (96% 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