38.1450’ N, 121.6920’ W

Rio Vista, CA

72°
H -°
L 57°
WSW
14mph
Low tide
1:05 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 (tomorrow) : in 6h 12m at 1:05 am (0.7 ft)
Next high tide (tomorrow) : 6:32 am (3.1 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 1885

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:063.64:284.111:131.211:560.27:115:30Waning Gibbous1Sun
2Mon5:503.75:223.912:061.27:105:31Waning Gibbous2Mon
3Tue6:333.86:213.612:330.41:021.17:095:32Waning Gibbous3Tue
4Wed7:173.87:243.41:110.62:011.17:085:33Waning Gibbous4Wed
5Thu8:043.98:323.21:510.83:051.17:075:34Third Quarter5Thu
6Fri8:533.99:433.02:341.14:111.07:065:35Third Quarter6Fri
7Sat9:473.910:523.03:231.35:160.87:055:37Third Quarter7Sat
8Sun10:413.911:553.14:181.56:160.67:045:38Third Quarter8Sun
9Mon11:343.95:151.67:090.57:035:39Waning Crescent9Mon
10Tue12:503.112:214.06:111.67:570.47:025:40Waning Crescent10Tue
11Wed1:383.21:044.07:051.68:390.37:015:41Waning Crescent11Wed
12Thu2:213.31:424.07:551.59:170.36:595:42Waning Crescent12Thu
13Fri3:003.32:184.08:411.59:520.46:585:43New Moon13Fri
14Sat3:343.42:523.99:241.410:240.56:575:44New Moon14Sat
15Sun4:033.43:273.910:051.310:540.56:565:45New Moon15Sun
16Mon4:293.54:063.910:441.211:220.66:555:46New Moon16Mon
17Tue4:533.64:493.811:241.211:520.76:535:48Waxing Crescent17Tue
18Wed5:213.85:383.612:081.16:525:49Waxing Crescent18Wed
19Thu5:563.96:363.412:260.81:001.16:515:50Waxing Crescent19Thu
20Fri6:384.07:473.21:060.92:061.16:505:51First Quarter20Fri
21Sat7:284.19:093.01:541.13:241.06:485:52First Quarter21Sat
22Sun8:274.110:293.02:521.24:420.96:475:53First Quarter22Sun
23Mon9:354.111:403.03:581.45:520.76:465:54First Quarter23Mon
24Tue10:474.15:091.46:540.56:445:55Waxing Gibbous24Tue
25Wed12:403.211:54 AM4.16:181.37:490.36:435:56Waxing Gibbous25Wed
26Thu1:323.312:544.27:231.28:390.36:425:57Waxing Gibbous26Thu
27Fri2:193.51:494.18:231.19:240.36:405:58Full Moon27Fri
28Sat3:033.62:414.19:191.010:060.36:395:59Full Moon28Sat
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 8% 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 (8% 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