38.1450’ N, 121.6920’ W

Rio Vista, CA

80°
H -°
L 57°
WSW
13mph
High tide
5:48 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:05 am (0.7 ft)
Next high tide : in 27m at 5:48 pm (4.0 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Apr 1885

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:133.85:143.311:350.211:171.15:506:30Waning Gibbous1Wed
2Thu4:453.86:083.212:210.25:496:31Waning Gibbous2Thu
3Fri5:183.87:043.11:080.25:476:32Waning Gibbous3Fri
4Sat5:533.78:013.112:281.41:570.35:466:32Waning Gibbous4Sat
5Sun6:333.58:593.11:141.52:500.35:446:33Third Quarter5Sun
6Mon7:243.39:573.12:091.63:450.45:436:34Third Quarter6Mon
7Tue8:313.110:523.23:131.64:390.55:416:35Third Quarter7Tue
8Wed9:543.011:403.34:211.55:310.55:406:36Third Quarter8Wed
9Thu11:093.05:271.46:190.65:386:37Waning Crescent9Thu
10Fri12:233.412:103.06:261.27:020.75:376:38Waning Crescent10Fri
11Sat12:593.41:023.07:211.07:420.85:356:39Waning Crescent11Sat
12Sun1:283.51:483.08:110.88:200.85:346:40Waning Crescent12Sun
13Mon1:543.62:343.08:580.68:570.95:336:41New Moon13Mon
14Tue2:173.73:203.09:430.49:331.05:316:42New Moon14Tue
15Wed2:443.94:093.010:270.210:111.15:306:43New Moon15Wed
16Thu3:184.05:023.011:130.010:521.15:286:44New Moon16Thu
17Fri3:584.15:593.012:00-0.15:276:44Waxing Crescent17Fri
18Sat4:434.26:583.012:51-0.15:266:45Waxing Crescent18Sat
19Sun5:344.18:003.112:301.21:47-0.15:246:46Waxing Crescent19Sun
20Mon6:313.99:023.11:301.32:460.05:236:47First Quarter20Mon
21Tue7:383.610:033.32:391.33:470.15:216:48First Quarter21Tue
22Wed8:583.310:593.53:521.24:470.15:206:49First Quarter22Wed
23Thu10:213.111:503.75:041.05:430.25:196:50Waxing Gibbous23Thu
24Fri11:363.16:110.76:350.35:186:51Waxing Gibbous24Fri
25Sat12:353.812:403.07:130.57:230.55:166:52Waxing Gibbous25Sat
26Sun1:163.91:373.08:100.28:070.65:156:53Waxing Gibbous26Sun
27Mon1:533.92:313.09:020.08:490.85:146:54Full Moon27Mon
28Tue2:273.93:232.99:51-0.19:271.05:126:55Full Moon28Tue
29Wed2:593.94:162.910:36-0.310:041.25:116:56Full Moon29Wed
30Thu3:293.95:082.911:20-0.310:391.35:106:57Full Moon30Thu
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 8% 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 (8% 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