Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 5:37 am (1.2 ft)
Next high tide : in 6h 08m at 9:55 pm (4.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:50 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:093.93:572.910:26-0.110:050.96:097:58Full Moon1Thu
2Fri3:413.94:492.911:13-0.210:421.16:087:59Full Moon2Fri
3Sat4:113.95:412.911:56-0.311:171.36:068:00Full Moon3Sat
4Sun4:393.96:332.912:38-0.36:058:01Full Moon4Sun
5Mon5:073.87:243.01:19-0.36:048:02Waning Gibbous5Mon
6Tue5:393.78:143.012:311.51:59-0.36:038:03Waning Gibbous6Tue
7Wed6:163.69:033.11:151.52:40-0.16:028:03Waning Gibbous7Wed
8Thu6:583.49:533.12:061.63:220.06:018:04Waning Gibbous8Thu
9Fri7:473.110:413.23:041.64:070.26:008:05Third Quarter9Fri
10Sat8:482.911:273.34:101.54:540.35:598:06Third Quarter10Sat
11Sun10:132.65:191.45:400.55:588:07Third Quarter11Sun
12Mon12:083.411:44 AM2.56:251.26:250.65:578:08Third Quarter12Mon
13Tue12:443.512:552.57:260.97:090.85:568:09Waning Crescent13Tue
14Wed1:153.61:552.58:230.77:530.95:568:10Waning Crescent14Wed
15Thu1:433.72:512.69:160.48:371.05:558:11Waning Crescent15Thu
16Fri2:123.93:452.610:070.19:231.25:548:12New Moon16Fri
17Sat2:464.14:402.610:55-0.210:121.25:538:12New Moon17Sat
18Sun3:254.25:372.711:43-0.411:031.35:528:13New Moon18Sun
19Mon4:094.36:342.812:30-0.55:528:14Waxing Crescent19Mon
20Tue4:574.37:303.01:18-0.55:518:15Waxing Crescent20Tue
21Wed5:494.18:253.112:511.32:07-0.55:508:16Waxing Crescent21Wed
22Thu6:463.99:193.31:521.32:57-0.45:508:17Waxing Crescent22Thu
23Fri7:513.510:133.52:581.33:49-0.25:498:17First Quarter23Fri
24Sat9:063.211:063.74:091.24:41-0.15:488:18First Quarter24Sat
25Sun10:272.911:563.85:201.05:340.15:488:19First Quarter25Sun
26Mon11:462.76:290.76:240.45:478:20Waxing Gibbous26Mon
27Tue12:424.012:552.77:330.47:120.65:478:20Waxing Gibbous27Tue
28Wed1:244.11:572.68:310.17:580.85:468:21Waxing Gibbous28Wed
29Thu2:024.12:542.79:25-0.18:411.05:468:22Waxing Gibbous29Thu
30Fri2:364.13:482.710:13-0.39:231.25:458:23Full Moon30Fri
31Sat3:074.14:402.710:58-0.410:041.45:458:23Full Moon31Sat
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 1:46 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 neap phase. Tonight's moon is 50% 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 minimum.

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 Third Quarter (50% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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