38.1450’ N, 121.6920’ W

Rio Vista, CA

61°
H 89°
L 55°
WSW
10mph
High tide
6:32 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 12:29 pm (1.0 ft)
Next high tide : in 2h 11m at 6:32 am (3.1 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:143.96:233.612:350.51:011.27:115:29Waxing Crescent1Fri
2Sat6:584.07:353.31:150.62:101.17:105:30First Quarter2Sat
3Sun7:494.19:003.02:020.83:291.17:105:31First Quarter3Sun
4Mon8:484.210:232.92:571.04:470.97:095:32First Quarter4Mon
5Tue9:524.211:383.04:001.25:580.77:085:33First Quarter5Tue
6Wed10:564.35:071.37:010.47:075:35Waxing Gibbous6Wed
7Thu12:423.111:57 AM4.36:131.47:560.27:065:36Waxing Gibbous7Thu
8Fri1:383.212:524.37:171.48:460.17:055:37Waxing Gibbous8Fri
9Sat2:283.31:434.38:161.39:310.17:045:38Full Moon9Sat
10Sun3:143.52:314.29:101.310:120.17:025:39Full Moon10Sun
11Mon3:573.53:194.110:011.210:500.27:015:40Full Moon11Mon
12Tue4:373.64:074.010:491.211:240.47:005:41Full Moon12Tue
13Wed5:153.74:563.811:371.111:560.66:595:42Waning Gibbous13Wed
14Thu5:513.75:493.612:241.16:585:43Waning Gibbous14Thu
15Fri6:273.86:453.412:260.81:151.16:575:45Waning Gibbous15Fri
16Sat7:053.87:473.212:571.02:111.16:565:46Waning Gibbous16Sat
17Sun7:453.88:543.01:331.23:131.16:545:47Third Quarter17Sun
18Mon8:323.710:033.02:171.34:181.06:535:48Third Quarter18Mon
19Tue9:273.711:083.03:101.55:210.96:525:49Third Quarter19Tue
20Wed10:263.74:101.66:180.86:515:50Third Quarter20Wed
21Thu12:063.011:22 AM3.75:121.77:090.76:495:51Waning Crescent21Thu
22Fri12:563.112:113.76:121.67:540.66:485:52Waning Crescent22Fri
23Sat1:383.212:553.87:081.68:340.66:475:53Waning Crescent23Sat
24Sun2:153.31:353.97:591.49:120.66:455:54Waning Crescent24Sun
25Mon2:463.32:173.98:471.39:470.66:445:55New Moon25Mon
26Tue3:153.43:003.99:341.110:210.66:435:56New Moon26Tue
27Wed3:433.63:463.910:201.010:540.66:415:57New Moon27Wed
28Thu4:143.84:373.811:080.811:290.76:405:58Waxing Crescent28Thu
29Fri4:504.05:333.611:590.76:385:59Waxing Crescent29Fri
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 14% 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 Crescent (14% 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