Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 05m at 10:10 am (-0.4 ft)
Next high tide : 4:01 pm (2.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Dec 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:593.49:012.83:260.03:561.47:044:47Third Quarter1Sat
2Sun10:443.610:222.64:110.35:061.17:054:47Third Quarter2Sun
3Mon11:253.811:332.54:540.56:110.87:064:46Waning Crescent3Mon
4Tue12:023.95:340.77:100.47:074:46Waning Crescent4Tue
5Wed12:362.512:354.06:111.08:020.17:074:46Waning Crescent5Wed
6Thu1:332.51:044.16:461.28:50-0.17:084:46Waning Crescent6Thu
7Fri2:262.51:304.17:201.49:35-0.27:094:46New Moon7Fri
8Sat3:182.51:534.17:571.510:15-0.37:104:46New Moon8Sat
9Sun4:082.52:174.18:381.610:53-0.37:114:46New Moon9Sun
10Mon4:552.62:464.19:221.711:29-0.37:124:46New Moon10Mon
11Tue5:392.73:214.110:071.77:124:47Waxing Crescent11Tue
12Wed6:192.74:034.012:02-0.210:54 AM1.77:134:47Waxing Crescent12Wed
13Thu6:562.84:503.912:36-0.211:43 AM1.77:144:47Waxing Crescent13Thu
14Fri7:323.05:423.71:10-0.112:371.67:154:47Waxing Crescent14Fri
15Sat8:083.16:413.41:480.11:381.57:154:47First Quarter15Sat
16Sun8:453.37:533.12:280.22:501.47:164:48First Quarter16Sun
17Mon9:253.59:252.83:110.44:101.27:174:48First Quarter17Mon
18Tue10:083.810:562.63:560.65:280.97:174:48First Quarter18Tue
19Wed10:514.14:430.86:400.57:184:49Waxing Gibbous19Wed
20Thu12:142.511:35 AM4.45:301.17:440.17:184:49Waxing Gibbous20Thu
21Fri1:222.512:204.66:201.38:43-0.27:194:50Waxing Gibbous21Fri
22Sat2:252.51:044.77:161.59:36-0.47:194:50Full Moon22Sat
23Sun3:252.61:504.78:151.610:25-0.67:204:51Full Moon23Sun
24Mon4:232.72:374.69:161.711:10-0.67:204:51Full Moon24Mon
25Tue5:182.83:254.410:151.711:53-0.57:214:52Waning Gibbous25Tue
26Wed6:073.04:164.211:121.77:214:53Waning Gibbous26Wed
27Thu6:533.25:103.912:34-0.312:101.77:214:53Waning Gibbous27Thu
28Fri7:373.36:093.51:13-0.11:101.77:224:54Waning Gibbous28Fri
29Sat8:203.57:173.21:510.12:161.67:224:55Third Quarter29Sat
30Sun9:043.68:352.82:290.43:271.47:224:55Third Quarter30Sun
31Mon9:483.89:582.63:080.74:391.17:224:56Third Quarter31Mon
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 1:05 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 96% 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 Gibbous (96% 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