Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 3h 31m at 3:37 pm (0.7 ft)
Next high tide : 9:55 pm (4.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:50 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:203.11:274.57:581.49:290.07:105:30Full Moon1Sat
2Sun3:103.32:194.58:581.310:140.07:095:31Full Moon2Sun
3Mon3:573.43:104.49:531.310:550.17:085:32Full Moon3Mon
4Tue4:423.54:014.210:461.211:350.27:075:33Full Moon4Tue
5Wed5:263.64:544.011:381.27:065:34Waning Gibbous5Wed
6Thu6:083.75:503.812:120.312:311.27:055:35Waning Gibbous6Thu
7Fri6:513.86:503.512:490.51:271.27:045:36Waning Gibbous7Fri
8Sat7:353.87:553.31:260.82:281.17:035:38Third Quarter8Sat
9Sun8:223.89:053.12:061.03:331.17:025:39Third Quarter9Sun
10Mon9:133.810:153.02:521.24:390.97:015:40Third Quarter10Mon
11Tue10:083.911:213.03:441.45:420.87:005:41Third Quarter11Tue
12Wed11:033.94:411.56:390.66:595:42Waning Crescent12Wed
13Thu12:203.111:53 AM3.95:391.67:290.46:585:43Waning Crescent13Thu
14Fri1:123.212:393.96:341.68:140.46:565:44Waning Crescent14Fri
15Sat1:573.31:203.97:271.68:540.46:555:45Waning Crescent15Sat
16Sun2:373.31:573.98:151.59:310.46:545:46New Moon16Sun
17Mon3:133.32:323.99:001.410:040.56:535:47New Moon17Mon
18Tue3:433.43:073.99:421.310:350.56:515:49New Moon18Tue
19Wed4:103.53:443.910:221.211:050.66:505:50New Moon19Wed
20Thu4:353.64:263.811:021.111:340.66:495:51Waxing Crescent20Thu
21Fri5:013.75:133.711:441.16:485:52Waxing Crescent21Fri
22Sat5:343.96:073.512:070.712:331.06:465:53Waxing Crescent22Sat
23Sun6:134.07:133.312:440.81:321.06:455:54Waxing Crescent23Sun
24Mon7:014.18:313.11:291.02:451.06:445:55First Quarter24Mon
25Tue7:564.19:523.02:231.24:040.96:425:56First Quarter25Tue
26Wed9:014.111:073.03:271.35:180.76:415:57First Quarter26Wed
27Thu10:124.14:371.46:230.66:395:58Waxing Gibbous27Thu
28Fri12:113.111:23 AM4.15:471.47:220.46:385:59Waxing Gibbous28Fri
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 6:46 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 neap phase. Tonight's moon is 50% 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 Third Quarter (50% 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