Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 4h 54m at 10:51 am (-0.5 ft)
Next high tide : 4:51 pm (2.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:342.86:220.45:201.87:026:50First Quarter1Sun
2Mon1:173.07:140.36:371.57:036:48Waxing Gibbous2Mon
3Tue12:113.61:533.28:010.27:441.27:046:47Waxing Gibbous3Tue
4Wed1:223.62:263.48:440.38:450.97:056:45Waxing Gibbous4Wed
5Thu2:223.62:583.79:240.39:420.67:066:43Full Moon5Thu
6Fri3:173.53:313.910:020.510:380.37:076:42Full Moon6Fri
7Sat4:113.44:044.110:390.711:320.17:086:40Full Moon7Sat
8Sun5:073.14:404.311:150.87:096:39Waning Gibbous8Sun
9Mon6:092.95:184.312:270.011:52 AM1.17:096:37Waning Gibbous9Mon
10Tue7:152.75:584.31:230.012:321.37:106:36Waning Gibbous10Tue
11Wed8:262.66:434.12:220.01:191.57:116:35Waning Gibbous11Wed
12Thu9:382.77:353.83:230.02:181.77:126:33Third Quarter12Thu
13Fri10:472.88:403.64:250.03:311.87:136:32Third Quarter13Fri
14Sat11:473.010:043.35:240.04:491.87:146:30Third Quarter14Sat
15Sun12:373.26:180.06:021.67:156:29Third Quarter15Sun
16Mon1:203.47:060.07:061.37:166:27Waning Crescent16Mon
17Tue12:373.21:573.67:480.18:021.07:176:26Waning Crescent17Tue
18Wed1:343.12:303.78:250.38:530.87:186:25Waning Crescent18Wed
19Thu2:233.12:583.78:580.59:400.67:196:23Waning Crescent19Thu
20Fri3:093.03:223.89:260.710:250.47:206:22New Moon20Fri
21Sat3:542.93:413.89:500.911:070.37:216:21New Moon21Sat
22Sun4:382.73:563.910:121.111:480.27:226:19New Moon22Sun
23Mon5:252.64:134.010:381.27:236:18New Moon23Mon
24Tue6:152.54:394.112:290.211:09 AM1.37:246:17Waxing Crescent24Tue
25Wed7:102.55:144.11:100.111:47 AM1.47:256:16Waxing Crescent25Wed
26Thu8:082.55:564.01:540.112:321.67:266:14Waxing Crescent26Thu
27Fri9:092.56:453.92:440.11:271.77:276:13Waxing Crescent27Fri
28Sat10:082.67:433.63:400.22:341.77:286:12First Quarter28Sat
29Sun10:022.77:553.43:380.22:551.76:295:11First Quarter29Sun
30Mon10:493.09:313.24:330.24:181.56:305:10First Quarter30Mon
31Tue11:313.211:033.15:250.25:331.16:315:08Waxing 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 1:51 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 99% 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 Full Moon (99% 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