38.1450’ N, 121.6920’ W

Rio Vista, CA

65°
H 98°
L 67°
NW
5mph
Low tide
9:06 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 8, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 38m at 9:06 am (0.1 ft)
Next high tide : 2:59 pm (3.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:42 am
Moon phase : Waning Crescent (7% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 1893

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:443.19:193.24:18-0.14:091.56:335:07Third Quarter1Wed
2Thu11:333.410:453.15:12-0.15:241.26:345:06Waning Crescent2Thu
3Fri12:163.66:010.06:290.96:355:05Waning Crescent3Fri
4Sat12:533.86:450.27:280.56:365:04Waning Crescent4Sat
5Sun12:542.91:273.97:240.48:210.36:375:03Waning Crescent5Sun
6Mon1:462.91:574.08:000.69:110.06:385:02New Moon6Mon
7Tue2:372.82:234.08:320.99:57-0.16:395:01New Moon7Tue
8Wed3:282.72:474.09:011.110:42-0.26:415:00New Moon8Wed
9Thu4:202.63:094.09:291.311:24-0.36:424:59New Moon9Thu
10Fri5:152.53:344.010:001.56:434:58Waxing Crescent10Fri
11Sat6:112.54:034.012:06-0.310:37 AM1.66:444:57Waxing Crescent11Sat
12Sun7:062.64:393.912:48-0.211:22 AM1.76:454:56Waxing Crescent12Sun
13Mon7:592.75:213.71:31-0.112:151.86:464:56Waxing Crescent13Mon
14Tue8:512.86:103.42:150.01:171.86:474:55First Quarter14Tue
15Wed9:392.97:093.13:010.12:281.86:484:54First Quarter15Wed
16Thu10:233.08:292.93:480.23:431.76:494:53First Quarter16Thu
17Fri11:013.210:082.74:320.34:531.46:504:53First Quarter17Fri
18Sat11:343.311:262.75:140.45:571.16:514:52Waxing Gibbous18Sat
19Sun12:013.55:530.66:550.86:524:52Waxing Gibbous19Sun
20Mon12:292.712:273.86:310.77:510.46:544:51Waxing Gibbous20Mon
21Tue1:262.612:554.07:070.98:450.16:554:50Waxing Gibbous21Tue
22Wed2:212.61:274.37:451.19:38-0.26:564:50Full Moon22Wed
23Thu3:182.52:044.58:271.210:29-0.46:574:49Full Moon23Thu
24Fri4:192.42:454.69:141.411:20-0.56:584:49Full Moon24Fri
25Sat5:222.43:314.610:071.56:594:49Waning Gibbous25Sat
26Sun6:252.54:214.412:11-0.511:06 AM1.67:004:48Waning Gibbous26Sun
27Mon7:252.75:174.11:02-0.512:111.67:014:48Waning Gibbous27Mon
28Tue8:222.96:203.71:54-0.41:241.67:024:48Third Quarter28Tue
29Wed9:163.17:383.32:46-0.22:421.67:034:47Third Quarter29Wed
30Thu10:073.49:063.03:37-0.14:001.47:044:47Third Quarter30Thu
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 7% 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 Waning Crescent (7% 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