38.1450’ N, 121.6920’ W

Rio Vista, CA

58°
H 88°
L 54°
WSW
7mph
High tide
7:33 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 12:57 pm (1.3 ft)
Next high tide : in 3h 14m at 7:33 am (2.9 ft)
Sunset today : 7:14 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waxing Crescent (22% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 1881

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:403.711:553.05:400.26:200.66:405:14Waxing Gibbous1Tue
2Wed12:223.96:290.37:230.36:415:13Waxing Gibbous2Wed
3Thu12:582.91:014.17:140.58:200.06:425:12Waxing Gibbous3Thu
4Fri1:542.91:374.27:570.79:14-0.26:435:11Full Moon4Fri
5Sat2:492.82:124.28:390.910:04-0.36:445:10Full Moon5Sat
6Sun3:432.82:464.29:201.110:51-0.46:455:09Full Moon6Sun
7Mon4:392.73:204.210:011.311:36-0.46:465:08Full Moon7Mon
8Tue5:342.73:554.110:431.46:475:07Waning Gibbous8Tue
9Wed6:292.84:353.912:19-0.411:28 AM1.56:495:06Waning Gibbous9Wed
10Thu7:232.95:193.71:03-0.312:181.66:505:05Waning Gibbous10Thu
11Fri8:143.06:103.41:47-0.11:161.66:515:04Waning Gibbous11Fri
12Sat9:053.17:153.12:310.02:221.66:525:04Third Quarter12Sat
13Sun9:543.28:382.83:170.23:321.56:535:03Third Quarter13Sun
14Mon10:403.310:022.64:020.44:411.36:545:02Third Quarter14Mon
15Tue11:223.511:142.64:450.55:451.06:555:01Third Quarter15Tue
16Wed11:573.65:250.76:430.76:565:01Waning Crescent16Wed
17Thu12:152.512:263.76:020.97:360.56:575:00Waning Crescent17Thu
18Fri1:082.512:503.86:361.08:240.26:584:59Waning Crescent18Fri
19Sat1:572.51:093.97:111.19:100.06:594:59Waning Crescent19Sat
20Sun2:452.51:334.07:481.29:54-0.17:004:58New Moon20Sun
21Mon3:322.52:044.28:301.310:36-0.37:024:58New Moon21Mon
22Tue4:192.52:434.39:161.411:18-0.37:034:57New Moon22Tue
23Wed5:082.63:284.310:071.47:044:57Waxing Crescent23Wed
24Thu5:582.74:174.212:02-0.411:02 AM1.47:054:56Waxing Crescent24Thu
25Fri6:482.85:123.912:46-0.312:021.47:064:56Waxing Crescent25Fri
26Sat7:393.06:153.61:34-0.21:111.37:074:55First Quarter26Sat
27Sun8:323.27:323.22:23-0.12:281.37:084:55First Quarter27Sun
28Mon9:253.59:042.93:150.13:481.17:094:55First Quarter28Mon
29Tue10:173.710:322.74:070.25:050.87:104:54First Quarter29Tue
30Wed11:054.011:472.74:570.46:140.47:114:54Waxing Gibbous30Wed
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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 (22% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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