Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 44m at 7:07 pm (1.8 ft)
Next high tide (tomorrow) : 1:12 am (4.7 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:374.18:342.712:231.52:12-0.26:097:57Waning Gibbous1Thu
2Fri6:254.09:302.81:141.63:04-0.16:087:58Waning Gibbous2Fri
3Sat7:193.810:252.92:161.64:00-0.16:077:59Third Quarter3Sat
4Sun8:243.511:173.13:291.64:580.06:068:00Third Quarter4Sun
5Mon9:463.24:481.55:530.16:058:01Third Quarter5Mon
6Tue12:053.311:22 AM3.06:061.26:450.26:048:02Waning Crescent6Tue
7Wed12:493.612:453.07:170.87:340.36:038:03Waning Crescent7Wed
8Thu1:293.81:542.98:220.58:210.56:028:04Waning Crescent8Thu
9Fri2:074.02:562.89:230.19:050.76:018:05Waning Crescent9Fri
10Sat2:434.13:562.710:19-0.19:471.06:008:06New Moon10Sat
11Sun3:174.24:572.711:12-0.410:291.25:598:07New Moon11Sun
12Mon3:524.25:592.712:01-0.55:588:08New Moon12Mon
13Tue4:264.27:002.712:49-0.65:578:08Waxing Crescent13Tue
14Wed5:034.17:592.81:35-0.65:568:09Waxing Crescent14Wed
15Thu5:424.08:532.912:421.72:20-0.55:558:10Waxing Crescent15Thu
16Fri6:263.89:443.11:341.83:06-0.45:548:11Waxing Crescent16Fri
17Sat7:173.510:333.22:341.93:52-0.25:538:12First Quarter17Sat
18Sun8:193.111:193.33:411.84:390.05:538:13First Quarter18Sun
19Mon9:412.84:511.65:240.25:528:14First Quarter19Mon
20Tue12:033.511:07 AM2.65:591.46:060.45:518:15First Quarter20Tue
21Wed12:433.612:222.57:021.16:450.65:518:15Waxing Gibbous21Wed
22Thu1:173.71:272.58:010.87:200.85:508:16Waxing Gibbous22Thu
23Fri1:473.72:242.48:540.57:521.15:498:17Waxing Gibbous23Fri
24Sat2:103.83:172.49:430.38:241.35:498:18Waxing Gibbous24Sat
25Sun2:273.84:092.410:290.18:591.45:488:19Full Moon25Sun
26Mon2:454.05:022.411:12-0.19:391.65:478:19Full Moon26Mon
27Tue3:124.15:552.511:53-0.310:251.75:478:20Full Moon27Tue
28Wed3:474.26:462.612:34-0.45:468:21Full Moon28Wed
29Thu4:294.37:342.71:15-0.55:468:22Waning Gibbous29Thu
30Fri5:174.28:212.912:091.71:58-0.55:468:22Waning Gibbous30Fri
31Sat6:104.09:073.01:071.72:43-0.45:458:23Waning Gibbous31Sat
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 10:09 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 10% 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 Waning Crescent (10% 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