Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 2:26 pm (0.2 ft)
Next high tide : in 3h 21m at 7:00 am (3.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jul 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:454.75:172.711:19-0.410:201.75:478:33New Moon1Sat
2Sun3:344.76:112.912:05-0.55:488:33New Moon2Sun
3Mon4:254.67:023.112:49-0.55:488:33Waxing Crescent3Mon
4Tue5:194.47:503.412:201.61:32-0.45:498:33Waxing Crescent4Tue
5Wed6:174.18:373.61:201.62:15-0.35:498:33Waxing Crescent5Wed
6Thu7:203.79:243.82:231.52:58-0.15:508:32First Quarter6Thu
7Fri8:303.310:123.93:301.43:420.25:508:32First Quarter7Fri
8Sat9:463.011:004.14:411.24:270.55:518:32First Quarter8Sat
9Sun11:042.811:464.25:511.05:130.85:528:31First Quarter9Sun
10Mon12:182.76:570.76:001.05:528:31Waxing Gibbous10Mon
11Tue12:304.31:252.77:580.46:481.35:538:31Waxing Gibbous11Tue
12Wed1:114.32:252.78:520.17:361.55:548:30Waxing Gibbous12Wed
13Thu1:484.43:202.89:40-0.18:241.75:548:30Waxing Gibbous13Thu
14Fri2:234.34:102.910:24-0.29:121.85:558:29Full Moon14Fri
15Sat2:564.34:573.011:04-0.39:581.95:568:29Full Moon15Sat
16Sun3:274.25:403.111:40-0.310:431.95:578:28Full Moon16Sun
17Mon3:594.26:193.212:13-0.25:578:28Full Moon17Mon
18Tue4:334.16:543.312:43-0.15:588:27Waning Gibbous18Tue
19Wed5:104.07:263.412:081.81:110.05:598:26Waning Gibbous19Wed
20Thu5:503.97:563.512:511.71:390.16:008:26Waning Gibbous20Thu
21Fri6:353.78:253.61:371.72:080.36:008:25Waning Gibbous21Fri
22Sat7:273.48:563.82:291.62:420.56:018:24Third Quarter22Sat
23Sun8:293.19:333.93:341.63:210.76:028:24Third Quarter23Sun
24Mon9:582.810:164.14:511.44:070.96:038:23Third Quarter24Mon
25Tue11:362.611:054.36:101.24:571.26:048:22Third Quarter25Tue
26Wed12:572.67:220.85:541.46:048:21Waning Crescent26Wed
27Thu2:052.68:250.56:561.66:058:20Waning Crescent27Thu
28Fri12:504.63:052.89:210.28:041.76:068:19Waning Crescent28Fri
29Sat1:434.74:002.910:12-0.19:121.76:078:18New Moon29Sat
30Sun2:364.74:513.110:59-0.210:151.76:088:18New Moon30Sun
31Mon3:294.65:393.211:42-0.211:141.66:098:17New Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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

Slack tide in Rio Vista, CA is approximately 10:43 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 Waning Gibbous (71% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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