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 3h 39m at 6:50 pm (1.5 ft)
Next high tide (tomorrow) : 1:22 am (4.3 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 - Aug 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:232.88:334.03:091.52:251.06:098:16Third Quarter1Sun
2Mon9:502.59:104.04:221.43:051.26:108:15Third Quarter2Mon
3Tue11:202.49:554.15:381.33:531.56:118:14Third Quarter3Tue
4Wed12:392.46:481.04:501.76:128:13Third Quarter4Wed
5Thu1:442.57:480.75:551.86:138:12Waning Crescent5Thu
6Fri2:352.78:390.57:041.96:148:11Waning Crescent6Fri
7Sat12:494.43:192.89:250.38:131.86:148:10Waning Crescent7Sat
8Sun1:464.53:573.010:070.19:171.66:158:09New Moon8Sun
9Mon2:414.54:333.210:460.110:171.46:168:07New Moon9Mon
10Tue3:354.45:083.411:240.111:131.26:178:06New Moon10Tue
11Wed4:294.35:443.711:590.26:188:05Waxing Crescent11Wed
12Thu5:244.16:233.912:091.112:340.36:198:04Waxing Crescent12Thu
13Fri6:223.77:034.11:070.91:090.56:208:03Waxing Crescent13Fri
14Sat7:263.47:474.22:080.91:460.86:218:01Waxing Crescent14Sat
15Sun8:363.08:364.33:140.82:261.06:218:00First Quarter15Sun
16Mon9:532.89:304.34:250.73:141.36:227:59First Quarter16Mon
17Tue11:112.710:314.25:350.54:141.66:237:57First Quarter17Tue
18Wed12:242.86:400.35:221.76:247:56Waxing Gibbous18Wed
19Thu1:263.07:380.16:311.86:257:55Waxing Gibbous19Thu
20Fri12:354.12:183.28:280.07:361.86:267:53Waxing Gibbous20Fri
21Sat1:284.13:023.49:12-0.18:331.76:277:52Waxing Gibbous21Sat
22Sun2:154.13:403.59:520.09:241.66:287:51Full Moon22Sun
23Mon2:594.04:153.610:270.110:111.56:287:49Full Moon23Mon
24Tue3:403.94:473.610:590.310:551.46:297:48Full Moon24Tue
25Wed4:203.85:153.711:270.411:361.36:307:46Full Moon25Wed
26Thu4:593.65:393.811:520.66:317:45Waning Gibbous26Thu
27Fri5:403.46:013.912:161.212:150.76:327:44Waning Gibbous27Fri
28Sat6:243.26:234.012:571.212:400.96:337:42Waning Gibbous28Sat
29Sun7:153.06:514.11:411.21:101.06:347:41Waning Gibbous29Sun
30Mon8:202.77:274.12:351.21:471.36:347:39Waning Gibbous30Mon
31Tue9:402.68:124.13:421.12:331.56:357:38Third Quarter31Tue
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 10:06 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 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