38.1450’ N, 121.6920’ W

Rio Vista, CA

94°
H 94°
L 56°
NW
14mph
High tide
5:24 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 29, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:23 am (0.4 ft)
Next high tide : in 1h 42m at 5:24 pm (4.4 ft)
Sunset today : 6:52 pm
Sunrise tomorrow : 7:00 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 1856

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:362.44:254.012:270.111:02 AM1.56:405:14Waxing Crescent1Sat
2Sun7:342.55:083.91:110.111:50 AM1.66:415:13Waxing Crescent2Sun
3Mon8:312.55:593.72:000.112:481.76:425:12Waxing Crescent3Mon
4Tue9:252.76:593.52:530.11:591.86:435:11First Quarter4Tue
5Wed10:152.88:163.23:480.13:201.66:445:10First Quarter5Wed
6Thu10:583.09:543.14:410.24:391.46:455:09First Quarter6Thu
7Fri11:363.311:213.05:300.25:501.06:475:08Waxing Gibbous7Fri
8Sat12:113.66:150.36:550.66:485:07Waxing Gibbous8Sat
9Sun12:303.012:453.86:570.57:560.36:495:06Waxing Gibbous9Sun
10Mon1:302.91:194.17:380.78:53-0.16:505:05Full Moon10Mon
11Tue2:282.81:544.38:180.99:49-0.36:515:04Full Moon11Tue
12Wed3:272.72:304.48:591.110:42-0.56:525:04Full Moon12Wed
13Thu4:292.63:094.59:431.311:34-0.66:535:03Full Moon13Thu
14Fri5:342.53:494.410:291.46:545:02Waning Gibbous14Fri
15Sat6:392.64:334.212:25-0.611:21 AM1.66:555:01Waning Gibbous15Sat
16Sun7:412.75:223.91:16-0.512:201.76:565:01Waning Gibbous16Sun
17Mon8:392.96:193.52:07-0.41:281.86:575:00Third Quarter17Mon
18Tue9:333.17:323.22:58-0.22:421.86:584:59Third Quarter18Tue
19Wed10:223.39:002.93:48-0.13:571.67:004:59Third Quarter19Wed
20Thu11:063.510:232.74:350.15:071.37:014:58Third Quarter20Thu
21Fri11:463.611:332.75:180.36:101.07:024:58Waning Crescent21Fri
22Sat12:223.85:580.57:070.67:034:57Waning Crescent22Sat
23Sun12:332.612:533.96:330.77:590.47:044:57Waning Crescent23Sun
24Mon1:272.61:193.97:040.98:470.17:054:56Waning Crescent24Mon
25Tue2:182.51:414.07:331.19:320.07:064:56New Moon25Tue
26Wed3:082.41:594.08:021.310:14-0.17:074:55New Moon26Wed
27Thu3:592.42:194.18:361.510:53-0.27:084:55New Moon27Thu
28Fri4:492.42:464.19:151.611:31-0.27:094:55New Moon28Fri
29Sat5:382.53:214.29:591.67:104:54Waxing Crescent29Sat
30Sun6:252.54:034.112:09-0.210:47 AM1.77:114:54Waxing Crescent30Sun
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 88% 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 (88% 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