38.1450’ N, 121.6920’ W

Rio Vista, CA

56°
H -°
L 54°
SSE
5mph
High tide
7:14 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, November 13, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 11:37 am (1.7 ft)
Next high tide : in 5h 37m at 7:14 am (2.7 ft)
Sunset today : 4:56 pm
Sunrise tomorrow : 6:45 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:454.05:292.911:50-0.311:131.26:107:57Full Moon1Fri
2Sat4:264.16:283.012:39-0.46:097:58Waning Gibbous2Sat
3Sun5:114.17:283.012:021.21:30-0.56:087:59Waning Gibbous3Sun
4Mon6:014.08:283.112:541.32:23-0.46:068:00Waning Gibbous4Mon
5Tue6:573.89:283.21:541.33:18-0.46:058:00Third Quarter5Tue
6Wed8:013.510:263.33:011.44:15-0.26:048:01Third Quarter6Wed
7Thu9:203.211:223.54:151.35:11-0.16:038:02Third Quarter7Thu
8Fri10:473.05:281.26:050.06:028:03Third Quarter8Fri
9Sat12:143.712:062.86:380.96:560.26:018:04Waning Crescent9Sat
10Sun1:003.81:142.87:420.67:430.36:008:05Waning Crescent10Sun
11Mon1:414.02:132.88:400.48:280.55:598:06Waning Crescent11Mon
12Tue2:194.03:072.89:330.19:100.85:588:07Waning Crescent12Tue
13Wed2:524.03:592.810:21-0.19:501.05:578:08New Moon13Wed
14Thu3:234.04:512.811:05-0.210:271.25:568:09New Moon14Thu
15Fri3:524.05:422.811:47-0.311:041.35:568:10New Moon15Fri
16Sat4:203.96:332.812:26-0.35:558:10New Moon16Sat
17Sun4:493.97:222.91:03-0.35:548:11Waxing Crescent17Sun
18Mon5:213.88:093.012:221.51:39-0.25:538:12Waxing Crescent18Mon
19Tue5:583.78:553.01:061.52:14-0.15:528:13Waxing Crescent19Tue
20Wed6:413.69:413.11:551.62:510.05:528:14Waxing Crescent20Wed
21Thu7:293.310:253.22:511.63:300.15:518:15First Quarter21Thu
22Fri8:253.111:083.33:531.54:120.35:508:15First Quarter22Fri
23Sat9:352.811:473.45:001.44:570.45:498:16First Quarter23Sat
24Sun11:002.76:061.25:430.65:498:17First Quarter24Sun
25Mon12:223.512:212.67:090.96:290.75:488:18Waxing Gibbous25Mon
26Tue12:543.71:292.68:090.67:160.95:488:19Waxing Gibbous26Tue
27Wed1:253.82:302.69:060.28:051.15:478:19Waxing Gibbous27Wed
28Thu1:594.03:292.610:00-0.18:581.25:478:20Full Moon28Thu
29Fri2:364.24:282.710:52-0.39:531.35:468:21Full Moon29Fri
30Sat3:184.35:272.711:41-0.610:491.45:468:22Full Moon30Sat
31Sun4:034.36:252.912:30-0.75:458:22Full Moon31Sun
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 18% 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 (18% 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