38.1450’ N, 121.6920’ W

Rio Vista, CA

89°
H -°
L 74°
WSW
9mph
Low tide
9:41 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, September 9, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 30m at 9:41 pm (1.2 ft)
Next high tide (tomorrow) : 3:04 am (4.0 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 - Nov 1890

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:362.75:333.81:21-0.212:221.66:335:07Waning Gibbous1Sat
2Sun8:382.86:203.62:13-0.11:191.76:345:06Third Quarter2Sun
3Mon9:372.97:213.33:070.02:271.86:355:05Third Quarter3Mon
4Tue10:313.18:443.03:590.03:411.76:365:04Third Quarter4Tue
5Wed11:193.210:102.94:490.14:511.56:375:03Third Quarter5Wed
6Thu12:013.45:350.25:531.26:385:02Waning Crescent6Thu
7Fri12:373.56:150.36:491.06:395:01Waning Crescent7Fri
8Sat12:192.81:073.66:510.57:400.76:405:00Waning Crescent8Sat
9Sun1:092.81:313.67:240.68:280.56:414:59Waning Crescent9Sun
10Mon1:552.81:503.77:530.89:120.36:424:58New Moon10Mon
11Tue2:402.72:053.88:211.09:560.16:444:57New Moon11Tue
12Wed3:262.62:264.08:511.110:380.06:454:57New Moon12Wed
13Thu4:142.62:564.29:261.211:21-0.16:464:56New Moon13Thu
14Fri5:062.53:344.310:061.36:474:55Waxing Crescent14Fri
15Sat6:032.54:184.312:07-0.210:53 AM1.46:484:54Waxing Crescent15Sat
16Sun7:022.65:084.112:56-0.211:48 AM1.56:494:54Waxing Crescent16Sun
17Mon8:032.76:053.91:50-0.212:541.66:504:53First Quarter17Mon
18Tue9:022.97:143.52:46-0.22:141.66:514:52First Quarter18Tue
19Wed9:593.18:453.23:43-0.13:401.46:524:52First Quarter19Wed
20Thu10:503.410:213.04:380.05:001.26:534:51First Quarter20Thu
21Fri11:373.611:402.95:300.16:110.86:544:51Waxing Gibbous21Fri
22Sat12:193.96:180.27:150.46:554:50Waxing Gibbous22Sat
23Sun12:452.912:574.17:030.48:130.16:564:50Waxing Gibbous23Sun
24Mon1:432.81:324.27:450.69:07-0.16:574:49Full Moon24Mon
25Tue2:392.72:054.38:260.99:57-0.36:584:49Full Moon25Tue
26Wed3:342.72:374.39:061.110:43-0.46:594:48Full Moon26Wed
27Thu4:312.73:094.29:461.311:28-0.57:004:48Full Moon27Thu
28Fri5:282.73:424.210:261.57:014:48Waning Gibbous28Fri
29Sat6:232.74:194.112:11-0.411:09 AM1.67:024:47Waning Gibbous29Sat
30Sun7:172.85:003.912:53-0.411:57 AM1.77:034:47Waning Gibbous30Sun
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