38.1450’ N, 121.6920’ W

Rio Vista, CA

66°
H -°
L 56°
WSW
16mph
High tide
10:41 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, September 6, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 7:25 am (0.3 ft)
Next high tide (tomorrow) : in 11m at 10:41 pm (4.2 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:40 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jun 1898

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:232.37:520.25:591.34:447:23Waxing Gibbous1Wed
2Thu12:174.22:252.38:48-0.16:521.54:447:24Waxing Gibbous2Thu
3Fri12:584.43:252.49:39-0.47:561.64:447:25Full Moon3Fri
4Sat1:434.54:242.510:28-0.69:061.74:447:25Full Moon4Sat
5Sun2:314.55:192.711:15-0.710:121.74:437:26Full Moon5Sun
6Mon3:234.46:102.912:00-0.84:437:27Waning Gibbous6Mon
7Tue4:184.16:583.212:44-0.74:437:27Waning Gibbous7Tue
8Wed5:183.87:453.412:191.51:28-0.54:437:28Waning Gibbous8Wed
9Thu6:243.48:313.61:261.42:12-0.34:437:28Third Quarter9Thu
10Fri7:403.19:183.92:371.32:570.04:427:29Third Quarter10Fri
11Sat9:022.710:044.03:501.13:420.34:427:29Third Quarter11Sat
12Sun10:222.510:494.25:020.84:270.64:427:30Third Quarter12Sun
13Mon11:372.411:304.36:100.55:120.84:427:30Waning Crescent13Mon
14Tue12:452.47:110.25:571.14:427:30Waning Crescent14Tue
15Wed12:094.31:472.58:06-0.16:431.44:427:31Waning Crescent15Wed
16Thu12:454.32:432.58:54-0.47:301.64:427:31Waning Crescent16Thu
17Fri1:184.33:362.79:38-0.58:181.84:437:32New Moon17Fri
18Sat1:514.34:262.810:17-0.59:071.84:437:32New Moon18Sat
19Sun2:244.25:102.910:53-0.59:541.84:437:32New Moon19Sun
20Mon2:594.15:503.011:26-0.410:401.84:437:32New Moon20Mon
21Tue3:364.06:263.111:55-0.311:251.74:437:33Waxing Crescent21Tue
22Wed4:163.96:593.212:22-0.24:437:33Waxing Crescent22Wed
23Thu5:003.77:293.312:111.712:470.04:447:33Waxing Crescent23Thu
24Fri5:473.57:583.51:011.61:130.14:447:33Waxing Crescent24Fri
25Sat6:393.28:263.61:571.51:430.34:447:33First Quarter25Sat
26Sun7:412.88:563.73:021.42:180.54:457:33First Quarter26Sun
27Mon9:052.59:313.94:141.22:570.84:457:33First Quarter27Mon
28Tue10:402.310:124.15:280.93:411.14:457:33First Quarter28Tue
29Wed12:022.36:360.64:281.34:467:33Waxing Gibbous29Wed
30Thu1:132.37:380.25:231.54:467:33Waxing Gibbous30Thu
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 34% 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 Third Quarter (34% 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