38.1450’ N, 121.6920’ W

Rio Vista, CA

59°
H -°
L 48°
SW
12mph
Low tide
11:15 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, October 10, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 3h 07m at 11:15 pm (0.2 ft)
Next high tide (tomorrow) : 4:41 am (3.0 ft)
Sunset today : 6:36 pm
Sunrise tomorrow : 7:11 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:523.42:164.18:461.49:530.16:376:00New Moon1Tue
2Wed3:333.53:084.09:411.210:310.26:366:01New Moon2Wed
3Thu4:103.64:003.810:321.111:070.46:356:02New Moon3Thu
4Fri4:463.74:523.711:211.011:400.66:336:03Waxing Crescent4Fri
5Sat5:203.85:473.512:090.96:326:04Waxing Crescent5Sat
6Sun5:533.96:463.212:120.81:010.96:306:05Waxing Crescent6Sun
7Mon6:273.97:503.012:431.11:570.96:296:06Waxing Crescent7Mon
8Tue7:043.99:002.91:181.33:000.86:276:07First Quarter8Tue
9Wed7:463.810:112.92:011.54:070.76:266:08First Quarter9Wed
10Thu8:373.711:182.92:561.75:120.66:246:09First Quarter10Thu
11Fri9:403.64:001.86:100.56:236:10First Quarter11Fri
12Sat12:153.010:48 AM3.65:071.97:010.56:216:11Waxing Gibbous12Sat
13Sun1:043.212:503.67:101.88:450.47:207:12Waxing Gibbous13Sun
14Mon2:453.21:423.68:071.69:230.57:187:12Waxing Gibbous14Mon
15Tue3:203.32:283.68:581.49:580.67:177:13Waxing Gibbous15Tue
16Wed3:493.33:103.79:451.210:290.67:157:14Full Moon16Wed
17Thu4:123.43:523.710:281.010:570.77:147:15Full Moon17Thu
18Fri4:303.54:363.611:110.911:240.87:127:16Full Moon18Fri
19Sat4:493.65:233.511:540.711:520.97:117:17Full Moon19Sat
20Sun5:143.96:153.412:400.67:097:18Waning Gibbous20Sun
21Mon5:484.17:143.212:231.01:310.57:087:19Waning Gibbous21Mon
22Tue6:284.28:223.01:001.12:320.47:067:20Waning Gibbous22Tue
23Wed7:154.29:372.81:441.33:410.47:047:21Third Quarter23Wed
24Thu8:094.110:542.82:391.54:540.47:037:22Third Quarter24Thu
25Fri9:153.93:491.76:030.37:017:23Third Quarter25Fri
26Sat12:042.910:39 AM3.75:121.77:050.27:007:24Third Quarter26Sat
27Sun1:033.112:073.66:331.68:000.16:587:25Waning Crescent27Sun
28Mon1:533.31:213.67:451.38:490.16:577:26Waning Crescent28Mon
29Tue2:373.52:223.58:481.19:340.26:557:27Waning Crescent29Tue
30Wed3:163.73:163.59:440.810:140.36:547:28New Moon30Wed
31Thu3:513.84:083.410:360.610:510.56:527:29New Moon31Thu
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 0% 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 (0% 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