Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 14m at 2:03 am (1.6 ft)
Next high tide : 7:00 am (3.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:552.85:523.61:45-0.112:391.66:335:07Waxing Crescent1Wed
2Thu8:542.86:423.32:360.01:401.76:345:06First Quarter2Thu
3Fri9:513.07:503.13:280.12:531.76:355:05First Quarter3Fri
4Sat10:433.19:272.94:190.24:081.66:365:04First Quarter4Sat
5Sun11:293.310:502.85:070.25:161.46:375:03First Quarter5Sun
6Mon12:083.45:520.36:161.26:385:02Waxing Gibbous6Mon
7Tue12:413.56:320.47:100.96:395:01Waxing Gibbous7Tue
8Wed12:472.81:073.67:090.57:590.76:405:00Waxing Gibbous8Wed
9Thu1:342.81:303.77:440.78:460.46:424:59Waxing Gibbous9Thu
10Fri2:192.81:513.98:180.89:310.26:434:58Full Moon10Fri
11Sat3:062.72:184.18:520.910:160.06:444:57Full Moon11Sat
12Sun3:552.72:514.29:301.111:02-0.16:454:56Full Moon12Sun
13Mon4:482.63:304.310:121.211:49-0.26:464:55Waning Gibbous13Mon
14Tue5:472.64:154.310:591.36:474:55Waning Gibbous14Tue
15Wed6:482.75:054.212:39-0.311:54 AM1.46:484:54Waning Gibbous15Wed
16Thu7:512.76:023.91:34-0.212:581.46:494:53Waning Gibbous16Thu
17Fri8:542.97:103.62:31-0.22:141.46:504:53Third Quarter17Fri
18Sat9:533.18:333.33:29-0.13:331.36:514:52Third Quarter18Sat
19Sun10:483.410:023.14:260.04:491.16:524:51Third Quarter19Sun
20Mon11:363.611:193.05:190.15:580.86:534:51Waning Crescent20Mon
21Tue12:193.96:080.27:010.56:544:50Waning Crescent21Tue
22Wed12:252.912:584.06:530.47:580.26:554:50Waning Crescent22Wed
23Thu1:222.91:334.17:350.68:50-0.16:564:49Waning Crescent23Thu
24Fri2:152.82:054.18:150.89:39-0.26:584:49New Moon24Fri
25Sat3:082.82:344.18:521.010:25-0.46:594:48New Moon25Sat
26Sun4:002.73:024.19:281.211:08-0.47:004:48New Moon26Sun
27Mon4:532.73:314.010:031.411:50-0.47:014:48New Moon27Mon
28Tue5:462.84:014.010:411.57:024:47Waxing Crescent28Tue
29Wed6:382.84:373.812:30-0.311:24 AM1.67:034:47Waxing Crescent29Wed
30Thu7:292.95:173.61:10-0.212:131.77:034:47Waxing Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Show All
What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 4:31 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 spring phase. Tonight's moon is 80% 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 Waning Gibbous (80% 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