38.1450’ N, 121.6920’ W

Rio Vista, CA

79°
H 81°
L 46°
NNW
5mph
High tide
5:48 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, October 14, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 2:25 am (0.1 ft)
Next high tide : in 2h 55m at 5:48 pm (4.0 ft)
Sunset today : 6:30 pm
Sunrise tomorrow : 7:14 am
Moon phase : Waxing Crescent (16% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Apr 1833

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:103.412:383.77:131.08:070.35:586:36Waxing Gibbous1Mon
2Tue1:513.51:393.68:140.78:520.45:576:37Waxing Gibbous2Tue
3Wed2:303.72:363.69:110.59:340.55:556:38Full Moon3Wed
4Thu3:073.83:313.510:040.310:130.75:536:39Full Moon4Thu
5Fri3:433.84:273.410:550.110:510.85:526:40Full Moon5Fri
6Sat4:183.95:253.211:460.111:271.05:506:41Waning Gibbous6Sat
7Sun4:543.96:243.112:370.05:496:42Waning Gibbous7Sun
8Mon5:303.97:253.012:041.21:290.05:476:43Waning Gibbous8Mon
9Tue6:103.78:283.012:461.42:240.15:466:44Waning Gibbous9Tue
10Wed6:563.69:303.11:351.63:210.15:456:45Third Quarter10Wed
11Thu7:543.410:293.22:361.74:180.15:436:46Third Quarter11Thu
12Fri9:103.211:233.33:461.75:130.25:426:46Third Quarter12Fri
13Sat10:313.14:551.66:030.25:406:47Third Quarter13Sat
14Sun12:103.411:41 AM3.06:001.46:490.35:396:48Waning Crescent14Sun
15Mon12:513.512:403.06:581.27:310.55:376:49Waning Crescent15Mon
16Tue1:273.51:303.07:501.08:080.65:366:50Waning Crescent16Tue
17Wed1:583.62:163.08:370.78:430.85:346:51Waning Crescent17Wed
18Thu2:233.63:002.99:210.69:140.95:336:52New Moon18Thu
19Fri2:433.63:442.910:020.49:451.05:326:53New Moon19Fri
20Sat3:023.84:302.910:420.310:171.15:306:54New Moon20Sat
21Sun3:273.95:192.811:220.210:521.25:296:55New Moon21Sun
22Mon4:004.06:122.812:030.15:286:56Waxing Crescent22Mon
23Tue4:404.17:092.812:490.05:266:57Waxing Crescent23Tue
24Wed5:254.18:102.812:191.41:410.05:256:58Waxing Crescent24Wed
25Thu6:183.99:112.91:151.52:410.05:246:58First Quarter25Thu
26Fri7:193.710:103.12:231.53:440.15:226:59First Quarter26Fri
27Sat8:333.411:043.23:381.44:450.15:217:00First Quarter27Sat
28Sun10:003.211:533.44:541.25:420.25:207:01First Quarter28Sun
29Mon11:223.16:040.96:350.35:197:02Waxing Gibbous29Mon
30Tue12:363.612:323.17:090.67:240.45:187:03Waxing Gibbous30Tue
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 16% 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 Waxing Crescent (16% 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