38.1450’ N, 121.6920’ W

Rio Vista, CA

74°
H -°
L 57°
WSW
12mph
Low tide
1:57 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide (tomorrow) : in 6h 23m at 1:57 am (0.6 ft)
Next high tide (tomorrow) : 7:33 am (2.9 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 - Sep 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:523.45:494.312:230.712:120.85:436:43Waning Gibbous1Fri
2Sat7:003.16:374.31:250.612:561.05:446:42Third Quarter2Sat
3Sun8:143.07:314.22:310.61:471.25:456:40Third Quarter3Sun
4Mon9:292.98:344.03:400.62:481.45:466:39Third Quarter4Mon
5Tue10:413.09:433.94:460.43:561.65:466:37Third Quarter5Tue
6Wed11:443.210:513.95:470.35:041.65:476:36Waning Crescent6Wed
7Thu12:363.46:400.26:081.55:486:34Waning Crescent7Thu
8Fri1:213.57:270.27:061.45:496:33Waning Crescent8Fri
9Sat12:433.82:013.68:080.27:581.25:506:31Waning Crescent9Sat
10Sun1:303.82:363.78:450.38:461.15:516:29New Moon10Sun
11Mon2:133.73:083.79:180.49:311.05:526:28New Moon11Mon
12Tue2:563.63:363.79:470.610:140.95:526:26New Moon12Tue
13Wed3:373.54:003.810:120.810:550.85:536:25New Moon13Wed
14Thu4:193.34:193.810:350.911:360.85:546:23Waxing Crescent14Thu
15Fri5:043.24:383.911:001.05:556:22Waxing Crescent15Fri
16Sat5:523.05:033.912:180.811:30 AM1.15:566:20Waxing Crescent16Sat
17Sun6:462.95:384.01:040.812:071.25:576:18Waxing Crescent17Sun
18Mon7:492.86:213.91:570.812:511.45:586:17First Quarter18Mon
19Tue8:582.77:123.82:590.81:461.55:596:15First Quarter19Tue
20Wed10:052.78:163.74:040.72:531.65:596:14First Quarter20Wed
21Thu11:042.99:363.65:050.64:091.66:006:12First Quarter21Thu
22Fri11:543.011:013.66:000.55:231.46:016:11Waxing Gibbous22Fri
23Sat12:363.26:490.46:321.26:026:09Waxing Gibbous23Sat
24Sun12:113.71:143.57:350.47:340.96:036:07Waxing Gibbous24Sun
25Mon1:103.71:503.78:180.48:330.76:046:06Full Moon25Mon
26Tue2:053.72:263.99:000.59:290.46:056:04Full Moon26Tue
27Wed2:593.53:034.19:390.610:240.36:066:03Full Moon27Wed
28Thu3:553.43:414.210:190.711:180.26:066:01Waning Gibbous28Thu
29Fri4:533.24:224.311:000.96:076:00Waning Gibbous29Fri
30Sat5:563.05:054.212:120.111:42 AM1.16:085:58Waning Gibbous30Sat
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