38.1450’ N, 121.6920’ W

Rio Vista, CA

65°
H -°
L 57°
WSW
19mph
Low tide
12:15 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, September 13, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 28m at 12:15 am (0.7 ft)
Next high tide : 5:36 am (3.4 ft)
Sunset today : 7:19 pm
Sunrise tomorrow : 6:46 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 1887

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:183.710:532.73:111.25:081.37:115:29First Quarter1Tue
2Wed10:033.84:031.46:131.17:105:30First Quarter2Wed
3Thu12:002.710:51 AM3.94:581.57:100.97:095:31Waxing Gibbous3Thu
4Fri12:572.811:39 AM4.15:551.68:010.67:085:33Waxing Gibbous4Fri
5Sat1:462.912:284.26:531.68:470.47:075:34Waxing Gibbous5Sat
6Sun2:313.01:174.47:511.69:290.37:065:35Full Moon6Sun
7Mon3:113.12:064.58:471.410:100.27:055:36Full Moon7Mon
8Tue3:513.22:584.59:411.310:500.27:045:37Full Moon8Tue
9Wed4:303.43:514.410:341.211:280.27:035:38Full Moon9Wed
10Thu5:103.54:474.211:291.07:025:39Waning Gibbous10Thu
11Fri5:523.75:464.012:070.312:261.07:015:40Waning Gibbous11Fri
12Sat6:373.96:513.712:470.51:280.97:005:42Waning Gibbous12Sat
13Sun7:264.08:013.41:300.72:350.96:595:43Third Quarter13Sun
14Mon8:204.09:163.22:180.93:460.86:585:44Third Quarter14Mon
15Tue9:184.010:313.13:121.14:570.76:565:45Third Quarter15Tue
16Wed10:204.011:403.14:111.36:020.56:555:46Third Quarter16Wed
17Thu11:194.15:131.57:000.36:545:47Waning Crescent17Thu
18Fri12:403.212:124.16:151.57:520.16:535:48Waning Crescent18Fri
19Sat1:323.31:014.17:121.58:390.16:515:49Waning Crescent19Sat
20Sun2:193.41:454.18:051.59:200.16:505:50Waning Crescent20Sun
21Mon3:013.52:274.08:541.59:580.26:495:51New Moon21Mon
22Tue3:393.53:093.99:391.410:320.36:485:52New Moon22Tue
23Wed4:153.63:503.910:211.311:030.46:465:53New Moon23Wed
24Thu4:473.64:323.711:011.311:310.66:455:54New Moon24Thu
25Fri5:163.65:153.611:401.211:590.76:445:55Waxing Crescent25Fri
26Sat5:433.76:023.412:201.26:425:56Waxing Crescent26Sat
27Sun6:083.76:553.212:280.91:051.26:415:58Waxing Crescent27Sun
28Mon6:373.87:593.01:011.01:591.26:395:59Waxing Crescent28Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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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