38.1450’ N, 121.6920’ W

Rio Vista, CA

95°
H 104°
L 74°
NNW
6mph
High tide
3:37 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, September 9, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 9:41 pm (1.2 ft)
Next high tide : in 3h 27m at 3:37 pm (3.5 ft)
Sunset today : 7:24 pm
Sunrise tomorrow : 6:43 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Sep 1891

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:254.13:083.59:13-0.18:461.65:366:36New Moon1Tue
2Wed2:094.03:423.59:470.19:321.45:376:35New Moon2Wed
3Thu2:503.94:143.610:170.210:151.35:386:33New Moon3Thu
4Fri3:323.84:413.610:430.410:561.25:386:32New Moon4Fri
5Sat4:133.65:043.711:050.611:371.25:396:30Waxing Crescent5Sat
6Sun4:563.45:233.711:260.75:406:29Waxing Crescent6Sun
7Mon5:423.25:413.812:201.211:50 AM0.95:416:27Waxing Crescent7Mon
8Tue6:372.96:073.91:081.212:201.15:426:26Waxing Crescent8Tue
9Wed7:452.76:423.92:071.112:581.35:436:24First Quarter9Wed
10Thu9:072.67:263.93:171.11:451.55:446:23First Quarter10Thu
11Fri10:272.58:213.84:290.92:441.75:446:21First Quarter11Fri
12Sat11:362.79:293.85:340.73:551.95:456:20First Quarter12Sat
13Sun12:302.86:310.55:111.85:466:18Waxing Gibbous13Sun
14Mon1:143.07:210.36:231.75:476:16Waxing Gibbous14Mon
15Tue12:003.91:513.18:060.27:281.45:486:15Waxing Gibbous15Tue
16Wed1:024.02:263.38:480.18:271.25:496:13Full Moon16Wed
17Thu1:584.02:593.59:280.29:230.95:506:12Full Moon17Thu
18Fri2:524.03:333.710:060.310:180.75:506:10Full Moon18Fri
19Sat3:473.84:093.910:420.411:130.55:516:09Waning Gibbous19Sat
20Sun4:443.54:474.111:180.65:526:07Waning Gibbous20Sun
21Mon5:463.25:274.212:100.511:56 AM0.95:536:05Waning Gibbous21Mon
22Tue6:553.06:124.21:110.412:361.15:546:04Waning Gibbous22Tue
23Wed8:102.87:014.12:170.41:251.45:556:02Third Quarter23Wed
24Thu9:272.88:003.93:260.32:251.65:566:01Third Quarter24Thu
25Fri10:402.99:093.74:330.23:361.75:575:59Third Quarter25Fri
26Sat11:423.110:243.65:330.14:491.75:585:58Third Quarter26Sat
27Sun12:333.36:270.05:551.65:585:56Waning Crescent27Sun
28Mon1:163.57:130.06:541.45:595:54Waning Crescent28Mon
29Tue12:273.61:533.67:540.07:471.26:005:53Waning Crescent29Tue
30Wed1:173.62:263.68:300.28:351.06:015:51Waning Crescent30Wed
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 2% 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 New Moon (2% 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