Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 4h 04m at 12:53 pm (-0.3 ft)
Next high tide : 7:07 pm (3.4 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:092.512:234.26:321.79:010.17:234:57Waxing Gibbous1Tue
2Wed2:572.51:024.37:241.79:420.07:234:58Full Moon2Wed
3Thu3:412.61:444.58:191.710:20-0.17:234:59Full Moon3Thu
4Fri4:212.72:304.59:131.710:57-0.27:235:00Full Moon4Fri
5Sat4:582.93:204.510:061.611:33-0.17:235:00Full Moon5Sat
6Sun5:333.04:134.410:591.47:235:01Waning Gibbous6Sun
7Mon6:103.25:084.112:09-0.111:55 AM1.37:235:02Waning Gibbous7Mon
8Tue6:493.56:093.812:450.112:571.27:235:03Waning Gibbous8Tue
9Wed7:313.77:173.41:230.32:061.17:235:04Third Quarter9Wed
10Thu8:183.98:363.02:040.53:221.07:225:05Third Quarter10Thu
11Fri9:094.110:002.72:480.84:400.87:225:06Third Quarter11Fri
12Sat10:034.211:202.63:371.05:530.57:225:07Third Quarter12Sat
13Sun10:564.34:321.36:580.27:225:08Waning Crescent13Sun
14Mon12:322.611:47 AM4.45:301.57:56-0.17:215:09Waning Crescent14Mon
15Tue1:352.712:344.46:321.78:46-0.37:215:10Waning Crescent15Tue
16Wed2:302.91:184.37:321.89:31-0.37:215:11New Moon16Wed
17Thu3:193.02:014.38:291.910:11-0.37:205:12New Moon17Thu
18Fri4:033.12:434.29:201.810:48-0.27:205:13New Moon18Fri
19Sat4:433.23:254.110:071.811:22-0.17:195:14New Moon19Sat
20Sun5:203.34:083.910:521.711:520.17:195:16Waxing Crescent20Sun
21Mon5:543.44:543.711:361.67:185:17Waxing Crescent21Mon
22Tue6:273.55:423.512:200.312:221.67:185:18Waxing Crescent22Tue
23Wed6:583.66:383.212:470.51:151.57:175:19Waxing Crescent23Wed
24Thu7:293.77:472.91:150.82:171.57:175:20First Quarter24Thu
25Fri8:013.89:102.61:481.03:311.47:165:21First Quarter25Fri
26Sat8:373.810:342.52:271.34:471.37:155:22First Quarter26Sat
27Sun9:193.911:492.53:151.55:571.07:155:23First Quarter27Sun
28Mon10:074.04:091.76:570.87:145:24Waxing Gibbous28Mon
29Tue12:522.611:00 AM4.15:091.87:470.57:135:26Waxing Gibbous29Tue
30Wed1:442.711:53 AM4.26:111.98:320.37:125:27Waxing Gibbous30Wed
31Thu2:272.812:464.37:121.89:130.27:115:28Waxing Gibbous31Thu
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 4:00 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 8% 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 Crescent (8% 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