Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 10:49 am (-0.4 ft)
Next high tide : in 1h 59m at 2:06 am (4.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:54 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:182.910:57 AM4.05:181.87:180.26:376:00Waxing Gibbous1Tue
2Wed1:153.112:064.06:311.78:090.16:356:01Waxing Gibbous2Wed
3Thu2:023.31:054.07:361.58:530.16:346:02Waxing Gibbous3Thu
4Fri2:443.51:583.98:331.49:330.26:326:03Full Moon4Fri
5Sat3:213.62:473.99:251.210:080.36:316:04Full Moon5Sat
6Sun3:553.63:353.810:121.110:400.56:296:05Full Moon6Sun
7Mon4:263.74:233.610:580.911:080.76:286:06Full Moon7Mon
8Tue4:553.75:133.411:420.911:330.96:266:07Waning Gibbous8Tue
9Wed5:213.86:073.212:280.86:256:08Waning Gibbous9Wed
10Thu5:463.87:073.01:180.86:236:09Waning Gibbous10Thu
11Fri6:133.98:122.912:261.32:140.86:226:10Waning Gibbous11Fri
12Sat6:443.89:212.81:031.53:170.76:206:11Third Quarter12Sat
13Sun8:253.711:292.81:511.75:210.77:197:12Third Quarter13Sun
14Mon9:173.63:521.96:220.67:177:13Third Quarter14Mon
15Tue12:312.910:27 AM3.55:021.97:160.57:167:14Third Quarter15Tue
16Wed1:223.011:49 AM3.46:131.98:040.57:147:15Waning Crescent16Wed
17Thu2:043.112:573.57:171.78:460.57:137:16Waning Crescent17Thu
18Fri2:383.21:523.68:141.59:250.57:117:17Waning Crescent18Fri
19Sat3:073.32:413.69:061.310:000.67:107:18Waning Crescent19Sat
20Sun3:323.43:293.69:541.010:340.77:087:19New Moon20Sun
21Mon3:563.64:183.610:430.711:060.87:077:20New Moon21Mon
22Tue4:233.85:103.511:310.511:390.97:057:21New Moon22Tue
23Wed4:554.06:073.312:220.47:047:22Waxing Crescent23Wed
24Thu5:324.27:113.112:131.01:180.37:027:22Waxing Crescent24Thu
25Fri6:154.38:212.912:521.22:200.27:007:23Waxing Crescent25Fri
26Sat7:034.39:362.81:381.43:280.26:597:24First Quarter26Sat
27Sun7:574.110:522.82:351.64:390.26:577:25First Quarter27Sun
28Mon9:023.93:471.75:460.26:567:26First Quarter28Mon
29Tue12:003.010:23 AM3.65:071.76:480.16:547:27First Quarter29Tue
30Wed12:583.211:48 AM3.56:231.67:410.16:537:28Waxing Gibbous30Wed
31Thu1:463.41:013.47:321.38:290.26:517:29Waxing Gibbous31Thu
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 6:27 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 1% 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 New Moon (1% 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