38.1450’ N, 121.6920’ W

Rio Vista, CA

75°
H -°
L 58°
WSW
15mph
High tide
7:30 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 3:47 am (0.9 ft)
Next high tide : in 4h 09m at 7:30 pm (4.4 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Aug 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:593.95:373.511:260.311:361.55:097:16Waxing Crescent1Tue
2Wed4:393.85:573.711:470.45:107:15Waxing Crescent2Wed
3Thu5:233.56:163.812:201.512:110.65:107:14Waxing Crescent3Thu
4Fri6:133.26:444.01:111.412:410.75:117:13Waxing Crescent4Fri
5Sat7:162.97:214.12:141.41:171.05:127:12First Quarter5Sat
6Sun8:432.68:074.23:311.22:001.25:137:11First Quarter6Sun
7Mon10:182.59:034.34:501.02:521.55:147:10First Quarter7Mon
8Tue11:402.510:084.46:010.73:551.75:157:09Waxing Gibbous8Tue
9Wed12:462.67:020.45:091.85:167:08Waxing Gibbous9Wed
10Thu1:412.87:560.16:311.85:177:06Waxing Gibbous10Thu
11Fri12:224.52:273.08:440.07:461.75:177:05Waxing Gibbous11Fri
12Sat1:224.53:103.29:28-0.18:521.55:187:04Full Moon12Sat
13Sun2:184.43:503.510:09-0.19:511.45:197:03Full Moon13Sun
14Mon3:134.24:293.710:470.010:471.25:207:02Full Moon14Mon
15Tue4:074.05:083.911:230.211:431.15:217:00Waning Gibbous15Tue
16Wed5:033.75:474.011:580.45:226:59Waning Gibbous16Wed
17Thu6:033.46:264.112:401.112:320.75:236:58Waning Gibbous17Thu
18Fri7:103.17:084.21:411.01:081.05:246:56Third Quarter18Fri
19Sat8:232.87:544.22:480.91:481.35:246:55Third Quarter19Sat
20Sun9:412.78:464.13:580.82:381.55:256:54Third Quarter20Sun
21Mon10:562.79:444.15:060.63:381.85:266:52Third Quarter21Mon
22Tue12:012.96:070.44:441.95:276:51Waning Crescent22Tue
23Wed12:543.16:590.25:491.95:286:50Waning Crescent23Wed
24Thu1:403.27:440.16:481.85:296:48Waning Crescent24Thu
25Fri12:344.02:193.48:230.17:421.75:306:47Waning Crescent25Fri
26Sat1:194.02:543.48:580.28:301.55:316:45New Moon26Sat
27Sun1:594.03:253.59:290.39:151.45:316:44New Moon27Sun
28Mon2:373.93:503.59:550.59:571.35:326:42New Moon28Mon
29Tue3:143.84:093.610:190.610:371.25:336:41New Moon29Tue
30Wed3:523.74:253.710:400.711:181.15:346:39Waxing Crescent30Wed
31Thu4:333.54:433.911:030.85:356:38Waxing Crescent31Thu
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 67% 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 (67% 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