Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 5:37 am (1.2 ft)
Next high tide : in 3h 50m at 9:55 pm (4.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:50 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jul 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:444.15:543.111:54-0.311:031.75:478:33Full Moon1Tue
2Wed4:154.16:353.212:27-0.35:488:33Full Moon2Wed
3Thu4:494.07:123.312:58-0.25:488:33Waning Gibbous3Thu
4Fri5:263.97:463.412:281.71:270.05:498:33Waning Gibbous4Fri
5Sat6:073.78:193.51:131.71:560.15:508:33Waning Gibbous5Sat
6Sun6:533.58:523.62:021.62:270.25:508:32Waning Gibbous6Sun
7Mon7:463.29:263.72:591.63:030.45:518:32Third Quarter7Mon
8Tue8:532.910:043.94:071.53:440.65:518:32Third Quarter8Tue
9Wed10:282.610:474.05:221.34:310.95:528:31Third Quarter9Wed
10Thu12:002.56:361.15:221.15:538:31Third Quarter10Thu
11Fri1:162.57:430.76:191.35:538:31Waning Crescent11Fri
12Sat12:234.42:202.68:430.47:211.55:548:30Waning Crescent12Sat
13Sun1:124.53:192.79:370.18:281.55:558:30Waning Crescent13Sun
14Mon2:034.64:132.910:27-0.19:331.65:558:29New Moon14Mon
15Tue2:534.65:053.011:13-0.310:351.55:568:29New Moon15Tue
16Wed3:454.65:553.211:57-0.311:331.55:578:28New Moon16Wed
17Thu4:384.46:423.412:39-0.35:588:28Waxing Crescent17Thu
18Fri5:334.27:283.612:301.41:20-0.25:588:27Waxing Crescent18Fri
19Sat6:313.98:143.81:281.42:000.05:598:26Waxing Crescent19Sat
20Sun7:333.69:013.92:291.32:400.36:008:26First Quarter20Sun
21Mon8:423.29:494.03:341.23:230.56:018:25First Quarter21Mon
22Tue9:553.010:394.14:421.14:080.86:018:24First Quarter22Tue
23Wed11:102.811:294.25:500.94:571.16:028:23First Quarter23Wed
24Thu12:222.86:540.65:491.36:038:23Waxing Gibbous24Thu
25Fri12:174.21:252.97:520.46:421.56:048:22Waxing Gibbous25Fri
26Sat1:024.32:223.08:440.17:361.66:058:21Waxing Gibbous26Sat
27Sun1:444.33:123.19:300.08:281.76:068:20Waxing Gibbous27Sun
28Mon2:224.23:573.210:12-0.19:171.76:068:19Full Moon28Mon
29Tue2:584.24:393.210:490.010:031.76:078:18Full Moon29Tue
30Wed3:324.15:173.311:230.010:471.76:088:17Full Moon30Wed
31Thu4:044.15:513.411:540.111:281.66:098:16Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Show All
What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 1:46 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Rio Vista, CA?

Rio Vista, CA is currently in a neap phase. Tonight's moon is 50% 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 minimum.

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 Third Quarter (50% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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