Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 44m at 8:26 pm (1.9 ft)
Next high tide (tomorrow) : 2:27 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jul 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:384.36:332.912:18-0.35:478:33Full Moon1Sun
2Mon4:224.27:043.112:50-0.35:478:33Waning Gibbous2Mon
3Tue5:114.27:343.312:071.71:22-0.25:488:33Waning Gibbous3Tue
4Wed6:034.08:053.512:581.61:55-0.15:488:33Waning Gibbous4Wed
5Thu6:593.78:403.71:541.52:300.15:498:33Waning Gibbous5Thu
6Fri8:033.39:204.03:001.43:070.35:508:33Third Quarter6Fri
7Sat9:222.910:044.24:161.23:490.65:508:32Third Quarter7Sat
8Sun10:552.610:524.45:370.94:340.95:518:32Third Quarter8Sun
9Mon12:242.46:550.65:231.25:518:32Waning Crescent9Mon
10Tue1:442.48:050.26:201.55:528:31Waning Crescent10Tue
11Wed12:334.62:542.59:06-0.17:251.75:538:31Waning Crescent11Wed
12Thu1:234.73:572.710:00-0.48:341.95:538:31New Moon12Thu
13Fri2:114.64:532.810:47-0.59:412.05:548:30New Moon13Fri
14Sat2:594.55:423.011:30-0.510:402.05:558:30New Moon14Sat
15Sun3:464.46:263.212:09-0.55:558:29New Moon15Sun
16Mon4:344.27:043.412:45-0.35:568:29Waxing Crescent16Mon
17Tue5:244.07:403.512:271.81:18-0.15:578:28Waxing Crescent17Tue
18Wed6:163.78:163.71:181.71:480.15:588:27Waxing Crescent18Wed
19Thu7:123.48:513.82:131.72:150.45:588:27Waxing Crescent19Thu
20Fri8:163.09:283.93:141.52:430.75:598:26First Quarter20Fri
21Sat9:312.710:063.94:211.43:131.06:008:26First Quarter21Sat
22Sun10:522.510:474.05:331.23:491.26:018:25First Quarter22Sun
23Mon12:122.46:430.94:331.56:018:24First Quarter23Mon
24Tue1:242.47:450.65:241.86:028:23Waxing Gibbous24Tue
25Wed12:104.12:262.58:380.36:221.96:038:23Waxing Gibbous25Wed
26Thu12:494.13:182.79:230.17:252.06:048:22Waxing Gibbous26Thu
27Fri1:284.24:022.810:040.08:272.16:058:21Waxing Gibbous27Fri
28Sat2:084.24:402.910:400.09:242.06:068:20Full Moon28Sat
29Sun2:494.35:123.011:14-0.110:161.86:068:19Full Moon29Sun
30Mon3:334.35:403.211:460.011:051.76:078:18Full Moon30Mon
31Tue4:204.36:073.412:170.06:088:17Waning Gibbous31Tue
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 11:26 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 96% 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 Waxing Gibbous (96% 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