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 7h 53m at 9:07 am (0.1 ft)
Next high tide : 2:57 pm (2.4 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 - Mar 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:093.99:592.92:171.34:070.86:376:00First Quarter1Fri
2Sat9:023.911:093.03:081.65:140.66:366:01First Quarter2Sat
3Sun10:013.84:071.76:140.56:346:02First Quarter3Sun
4Mon12:103.111:02 AM3.85:101.87:070.46:336:03Waxing Gibbous4Mon
5Tue1:023.211:58 AM3.86:111.77:530.36:316:04Waxing Gibbous5Tue
6Wed1:473.312:483.87:081.68:330.36:306:05Waxing Gibbous6Wed
7Thu2:273.41:333.88:001.59:090.46:286:06Waxing Gibbous7Thu
8Fri3:023.42:143.88:471.49:410.56:276:07Full Moon8Fri
9Sat3:313.42:533.89:301.210:090.66:256:08Full Moon9Sat
10Sun4:543.44:333.711:101.111:340.77:247:09Full Moon10Sun
11Mon5:123.55:143.611:501.011:590.87:227:10Full Moon11Mon
12Tue5:293.65:583.512:300.97:217:11Waning Gibbous12Tue
13Wed5:523.86:493.412:260.91:140.87:197:12Waning Gibbous13Wed
14Thu6:264.07:503.212:581.02:050.77:187:13Waning Gibbous14Thu
15Fri7:074.19:013.01:361.23:100.77:167:14Waning Gibbous15Fri
16Sat7:554.110:192.82:231.34:250.77:157:15Third Quarter16Sat
17Sun8:524.011:352.93:211.55:390.57:137:16Third Quarter17Sun
18Mon10:023.94:331.66:470.47:127:17Third Quarter18Mon
19Tue12:423.011:26 AM3.85:541.67:470.27:107:17Waning Crescent19Tue
20Wed1:373.212:473.87:111.58:400.27:097:18Waning Crescent20Wed
21Thu2:253.31:553.88:201.39:280.17:077:19Waning Crescent21Thu
22Fri3:073.52:543.89:211.010:110.27:067:20New Moon22Fri
23Sat3:463.63:483.710:170.810:520.37:047:21New Moon23Sat
24Sun4:233.74:423.611:100.611:300.57:027:22New Moon24Sun
25Mon4:593.85:363.412:000.57:017:23New Moon25Mon
26Tue5:333.96:323.312:050.712:480.46:597:24Waxing Crescent26Tue
27Wed6:063.97:313.112:390.91:380.46:587:25Waxing Crescent27Wed
28Thu6:403.98:333.01:131.22:310.46:567:26Waxing Crescent28Thu
29Fri7:173.99:382.91:511.43:270.46:557:27Waxing Crescent29Fri
30Sat7:593.710:432.92:371.64:270.46:537:28First Quarter30Sat
31Sun8:513.611:453.03:341.75:280.46:527:29First Quarter31Sun
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 12:02 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