Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 18, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 7h 50m at 2:04 pm (-0.5 ft)
Next high tide : 8:32 pm (3.3 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:194.35:030.96:560.47:234:57Waxing Gibbous1Sun
2Mon12:282.612:004.45:481.17:530.17:234:58Waxing Gibbous2Mon
3Tue1:292.712:374.46:341.48:43-0.17:234:59Waxing Gibbous3Tue
4Wed2:252.71:124.47:201.69:28-0.37:235:00Waxing Gibbous4Wed
5Thu3:172.81:464.48:071.710:09-0.37:235:00Full Moon5Thu
6Fri4:062.92:204.48:541.810:46-0.37:235:01Full Moon6Fri
7Sat4:512.92:564.39:391.811:19-0.27:235:02Full Moon7Sat
8Sun5:323.03:344.210:241.811:50-0.17:235:03Full Moon8Sun
9Mon6:103.14:144.111:081.87:235:04Waning Gibbous9Mon
10Tue6:443.24:563.912:180.111:52 AM1.77:235:05Waning Gibbous10Tue
11Wed7:153.25:423.712:440.212:401.77:225:06Waning Gibbous11Wed
12Thu7:453.36:333.41:100.41:351.77:225:07Waning Gibbous12Thu
13Fri8:133.47:363.01:400.62:401.67:225:08Third Quarter13Fri
14Sat8:423.69:002.72:160.83:571.57:225:09Third Quarter14Sat
15Sun9:173.710:342.52:571.05:141.27:215:10Third Quarter15Sun
16Mon9:593.911:552.53:421.36:240.97:215:11Third Quarter16Mon
17Tue10:464.14:311.57:270.57:205:12Waning Crescent17Tue
18Wed1:032.511:37 AM4.35:261.78:220.27:205:13Waning Crescent18Wed
19Thu2:022.612:304.56:291.89:12-0.17:205:14Waning Crescent19Thu
20Fri2:552.71:234.67:391.89:58-0.27:195:16New Moon20Fri
21Sat3:442.82:184.68:471.710:42-0.37:195:17New Moon21Sat
22Sun4:303.03:134.59:491.611:23-0.27:185:18New Moon22Sun
23Mon5:133.24:094.410:481.57:175:19Waxing Crescent23Mon
24Tue5:553.45:084.112:03-0.111:46 AM1.47:175:20Waxing Crescent24Tue
25Wed6:383.66:103.812:420.112:471.37:165:21Waxing Crescent25Wed
26Thu7:213.87:183.41:210.31:531.37:155:22First Quarter26Thu
27Fri8:074.08:323.12:010.63:051.27:155:23First Quarter27Fri
28Sat8:544.19:502.82:440.84:191.07:145:24First Quarter28Sat
29Sun9:434.211:072.73:301.15:310.87:135:26First Quarter29Sun
30Mon10:344.24:201.46:360.57:125:27Waxing Gibbous30Mon
31Tue12:172.811:22 AM4.35:141.67:320.27:125:28Waxing Gibbous31Tue
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 5:18 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 19% 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 (19% 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