Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 3h 50m at 9:40 pm (1.9 ft)
Next high tide (tomorrow) : 3:00 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 - Jan 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:443.78:113.12:180.23:011.37:234:57Third Quarter1Sun
2Mon9:303.99:282.82:590.54:131.17:234:58Third Quarter2Mon
3Tue10:154.010:452.63:410.85:230.87:234:59Third Quarter3Tue
4Wed10:584.111:552.64:231.06:270.57:235:00Waning Crescent4Wed
5Thu11:394.25:071.37:250.27:235:01Waning Crescent5Thu
6Fri12:582.612:174.35:511.58:15-0.17:235:02Waning Crescent6Fri
7Sat1:542.712:534.36:381.79:00-0.27:235:03Waning Crescent7Sat
8Sun2:452.81:264.37:261.89:41-0.37:235:04New Moon8Sun
9Mon3:322.91:584.28:151.910:18-0.27:225:05New Moon9Mon
10Tue4:142.92:314.29:021.910:52-0.17:225:06New Moon10Tue
11Wed4:533.03:054.29:471.811:220.07:225:07New Moon11Wed
12Thu5:273.13:434.110:301.711:510.17:225:08Waxing Crescent12Thu
13Fri5:563.24:244.011:111.77:225:09Waxing Crescent13Fri
14Sat6:233.35:083.812:180.211:54 AM1.67:215:10Waxing Crescent14Sat
15Sun6:493.45:573.612:460.312:421.67:215:11Waxing Crescent15Sun
16Mon7:183.66:553.21:160.51:411.57:215:12First Quarter16Mon
17Tue7:533.88:122.91:520.72:581.47:205:13First Quarter17Tue
18Wed8:354.09:562.62:331.04:281.27:205:14First Quarter18Wed
19Thu9:254.111:292.53:211.25:500.97:195:15First Quarter19Thu
20Fri10:204.34:151.57:010.67:195:16Waxing Gibbous20Fri
21Sat12:462.511:18 AM4.55:171.68:010.27:185:17Waxing Gibbous21Sat
22Sun1:502.612:164.66:261.88:540.07:185:18Waxing Gibbous22Sun
23Mon2:452.81:124.67:381.89:42-0.27:175:19Full Moon23Mon
24Tue3:352.92:074.68:441.710:25-0.27:165:20Full Moon24Tue
25Wed4:213.13:014.59:441.611:06-0.27:165:22Full Moon25Wed
26Thu5:033.33:554.310:401.511:440.07:155:23Waning Gibbous26Thu
27Fri5:443.54:504.111:351.47:145:24Waning Gibbous27Fri
28Sat6:233.65:473.812:190.212:311.37:135:25Waning Gibbous28Sat
29Sun7:033.86:493.412:540.41:301.37:135:26Waning Gibbous29Sun
30Mon7:433.97:563.11:280.72:351.27:125:27Third Quarter30Mon
31Tue8:264.09:102.82:031.03:441.17:115:28Third 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 12:20 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 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