Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 7h 04m at 8:34 am (0.1 ft)
Next high tide : 2:06 pm (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jul 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:104.35:542.911:42-0.210:511.75:478:33New Moon1Fri
2Sat3:544.36:273.012:15-0.25:478:33New Moon2Sat
3Sun4:414.36:583.212:47-0.25:488:33Waxing Crescent3Sun
4Mon5:324.17:313.412:321.51:19-0.15:488:33Waxing Crescent4Mon
5Tue6:273.98:073.71:271.31:530.05:498:33Waxing Crescent5Tue
6Wed7:273.68:483.92:291.22:300.25:508:33First Quarter6Wed
7Thu8:383.29:344.13:391.13:110.55:508:32First Quarter7Thu
8Fri10:002.810:244.34:540.93:560.75:518:32First Quarter8Fri
9Sat11:262.611:184.46:090.64:481.05:518:32First Quarter9Sat
10Sun12:452.57:190.35:461.35:528:31Waxing Gibbous10Sun
11Mon12:114.51:562.68:210.06:511.55:538:31Waxing Gibbous11Mon
12Tue1:024.52:572.79:17-0.37:581.75:538:31Waxing Gibbous12Tue
13Wed1:514.53:532.910:06-0.49:031.85:548:30Full Moon13Wed
14Thu2:374.44:433.110:51-0.510:021.85:558:30Full Moon14Thu
15Fri3:224.35:283.211:31-0.510:561.85:558:29Full Moon15Fri
16Sat4:074.16:103.412:09-0.35:568:29Full Moon16Sat
17Sun4:524.06:483.512:43-0.25:578:28Waning Gibbous17Sun
18Mon5:403.87:243.712:351.71:140.05:588:27Waning Gibbous18Mon
19Tue6:303.58:003.81:241.61:440.35:588:27Waning Gibbous19Tue
20Wed7:283.28:363.92:171.62:130.55:598:26Waning Gibbous20Wed
21Thu8:352.99:143.93:181.52:440.86:008:25Third Quarter21Thu
22Fri9:522.69:534.04:271.43:211.06:018:25Third Quarter22Fri
23Sat11:132.510:364.05:391.24:051.36:018:24Third Quarter23Sat
24Sun12:292.46:471.04:561.56:028:23Third Quarter24Sun
25Mon1:352.57:460.75:531.76:038:22Waning Crescent25Mon
26Tue12:054.12:312.68:370.56:531.86:048:22Waning Crescent26Tue
27Wed12:494.23:182.89:210.37:541.96:058:21Waning Crescent27Wed
28Thu1:324.23:582.910:000.28:511.86:068:20Waning Crescent28Thu
29Fri2:164.34:333.010:360.19:451.76:068:19New Moon29Fri
30Sat3:014.45:043.111:100.110:371.66:078:18New Moon30Sat
31Sun3:484.45:343.311:430.111:281.46:088:17New Moon31Sun
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 11:20 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 85% 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 (85% 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