Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 6h 37m at 12:53 pm (-0.3 ft)
Next high tide : 7:07 pm (3.4 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Dec 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:292.412:153.85:560.97:470.57:044:47Waxing Gibbous1Sat
2Sun1:262.412:393.96:311.18:360.37:054:47Waxing Gibbous2Sun
3Mon2:182.31:014.07:061.39:210.17:064:46Waxing Gibbous3Mon
4Tue3:102.31:274.27:441.510:02-0.17:074:46Full Moon4Tue
5Wed4:002.31:594.38:281.610:42-0.27:084:46Full Moon5Wed
6Thu4:502.42:384.49:161.611:21-0.37:094:46Full Moon6Thu
7Fri5:362.53:234.410:071.67:094:46Waning Gibbous7Fri
8Sat6:202.64:124.312:00-0.311:02 AM1.67:104:46Waning Gibbous8Sat
9Sun7:032.85:074.112:41-0.212:011.67:114:46Waning Gibbous9Sun
10Mon7:462.96:093.81:23-0.11:061.57:124:46Waning Gibbous10Mon
11Tue8:313.27:213.42:080.02:201.47:134:47Third Quarter11Tue
12Wed9:183.48:453.02:550.23:381.27:134:47Third Quarter12Wed
13Thu10:063.710:112.83:430.44:540.97:144:47Third Quarter13Thu
14Fri10:524.011:302.64:300.66:060.57:154:47Waning Crescent14Fri
15Sat11:364.25:170.87:110.17:164:47Waning Crescent15Sat
16Sun12:392.612:174.46:041.08:09-0.27:164:48Waning Crescent16Sun
17Mon1:412.612:564.46:521.39:02-0.47:174:48Waning Crescent17Mon
18Tue2:402.61:334.47:411.59:51-0.67:174:49New Moon18Tue
19Wed3:362.72:104.48:321.710:35-0.67:184:49New Moon19Wed
20Thu4:292.82:474.39:221.811:16-0.67:184:49New Moon20Thu
21Fri5:192.93:274.210:111.811:55-0.57:194:50Waxing Crescent21Fri
22Sat6:043.04:094.011:001.87:194:50Waxing Crescent22Sat
23Sun6:463.14:553.812:31-0.311:49 AM1.87:204:51Waxing Crescent23Sun
24Mon7:263.25:463.51:06-0.112:431.87:204:51Waxing Crescent24Mon
25Tue8:063.46:463.11:400.11:431.77:214:52First Quarter25Tue
26Wed8:463.58:032.82:140.32:531.67:214:53First Quarter26Wed
27Thu9:263.69:312.52:490.64:091.57:214:53First Quarter27Thu
28Fri10:043.710:542.43:270.95:231.27:224:54First Quarter28Fri
29Sat10:413.84:071.16:310.97:224:55First Quarter29Sat
30Sun12:072.311:14 AM3.94:491.37:290.67:224:56Waxing Gibbous30Sun
31Mon1:112.311:46 AM4.15:341.58:180.37:224:56Waxing Gibbous31Mon
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 4:00 pm — 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 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