Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide (tomorrow) : in 27m at 10:57 pm (2.0 ft)
Next high tide : 4:05 am (4.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:47 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:102.83:304.510:091.611:54-0.37:234:57Waxing Crescent1Sun
2Mon5:523.04:254.311:071.57:234:58Waxing Crescent2Mon
3Tue6:343.25:254.012:35-0.212:081.47:234:59Waxing Crescent3Tue
4Wed7:173.56:313.71:15-0.11:141.37:235:00Waxing Crescent4Wed
5Thu8:023.77:453.31:570.12:281.37:235:01First Quarter5Thu
6Fri8:503.99:082.92:410.43:461.17:235:02First Quarter6Fri
7Sat9:404.110:312.73:260.75:030.87:235:02First Quarter7Sat
8Sun10:294.311:482.64:140.96:150.57:235:03Waxing Gibbous8Sun
9Mon11:174.45:041.27:190.27:235:04Waxing Gibbous9Mon
10Tue12:562.612:024.45:561.48:14-0.17:235:05Waxing Gibbous10Tue
11Wed1:572.712:434.46:501.69:02-0.27:225:06Waxing Gibbous11Wed
12Thu2:512.81:234.47:441.89:45-0.37:225:07Full Moon12Thu
13Fri3:412.92:024.48:361.910:24-0.37:225:08Full Moon13Fri
14Sat4:263.02:424.39:251.911:00-0.27:225:09Full Moon14Sat
15Sun5:073.13:224.210:111.811:32-0.17:215:10Full Moon15Sun
16Mon5:443.24:044.010:551.87:215:11Waning Gibbous16Mon
17Tue6:183.34:483.912:000.111:40 AM1.77:205:12Waning Gibbous17Tue
18Wed6:493.45:343.612:260.312:261.77:205:14Waning Gibbous18Wed
19Thu7:193.46:253.312:500.51:191.67:205:15Waning Gibbous19Thu
20Fri7:483.57:263.01:160.72:201.67:195:16Third Quarter20Fri
21Sat8:153.68:472.71:480.93:331.57:195:17Third Quarter21Sat
22Sun8:463.710:162.52:251.14:491.37:185:18Third Quarter22Sun
23Mon9:243.811:372.53:091.46:001.07:175:19Third Quarter23Mon
24Tue10:114.03:591.67:020.77:175:20Waning Crescent24Tue
25Wed12:442.511:03 AM4.14:541.87:550.47:165:21Waning Crescent25Wed
26Thu1:412.611:57 AM4.35:571.98:430.27:155:22Waning Crescent26Thu
27Fri2:292.712:524.47:041.99:270.07:155:23Waning Crescent27Fri
28Sat3:122.91:464.58:111.810:09-0.17:145:25New Moon28Sat
29Sun3:523.02:404.59:121.610:48-0.17:135:26New Moon29Sun
30Mon4:293.23:354.410:091.411:260.07:125:27New Moon30Mon
31Tue5:073.44:324.211:061.27:125:28Waxing Crescent31Tue
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 1:31 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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