Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 15m at 5:57 am (1.2 ft)
Next high tide : 11:04 am (2.4 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:43 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:282.66:564.32:260.31:241.47:026:49Waning Gibbous1Thu
2Fri9:482.67:544.13:370.32:291.67:036:48Third Quarter2Fri
3Sat11:032.79:063.84:470.33:501.77:046:46Third Quarter3Sat
4Sun12:072.95:530.25:161.67:056:45Third Quarter4Sun
5Mon1:003.26:500.16:331.47:066:43Waning Crescent5Mon
6Tue12:023.51:443.47:400.17:401.17:076:42Waning Crescent6Tue
7Wed1:113.52:233.78:250.18:410.87:086:40Waning Crescent7Wed
8Thu2:093.42:583.89:060.39:360.57:096:39Waning Crescent8Thu
9Fri3:013.33:303.99:430.510:270.37:106:37New Moon9Fri
10Sat3:513.23:594.010:170.711:150.27:116:36New Moon10Sat
11Sun4:413.04:264.010:460.97:126:34New Moon11Sun
12Mon5:342.94:524.012:020.111:14 AM1.17:126:33Waxing Crescent12Mon
13Tue6:302.75:184.012:490.011:42 AM1.37:136:31Waxing Crescent13Tue
14Wed7:302.75:484.01:360.012:151.57:146:30Waxing Crescent14Wed
15Thu8:322.66:243.82:250.112:571.77:156:29Waxing Crescent15Thu
16Fri9:342.77:073.63:170.11:521.87:166:27First Quarter16Fri
17Sat10:342.88:033.34:110.23:001.97:176:26First Quarter17Sat
18Sun11:282.99:223.15:050.24:181.87:186:24First Quarter18Sun
19Mon12:163.15:550.35:331.77:196:23First Quarter19Mon
20Tue12:563.26:400.36:381.47:206:22Waxing Gibbous20Tue
21Wed12:202.91:293.37:200.47:361.17:216:20Waxing Gibbous21Wed
22Thu1:172.91:563.57:560.58:270.97:226:19Waxing Gibbous22Thu
23Fri2:072.92:183.68:290.79:160.67:236:18Waxing Gibbous23Fri
24Sat2:532.92:383.89:010.810:040.47:246:17Full Moon24Sat
25Sun3:392.83:024.09:321.010:510.17:256:15Full Moon25Sun
26Mon4:292.73:334.310:051.111:400.07:266:14Full Moon26Mon
27Tue5:242.64:104.410:421.27:276:13Full Moon27Tue
28Wed6:242.54:524.512:30-0.211:26 AM1.37:286:12Waning Gibbous28Wed
29Thu7:302.55:404.41:23-0.212:171.47:296:10Waning Gibbous29Thu
30Fri8:372.56:344.12:19-0.21:191.57:306:09Waning Gibbous30Fri
31Sat9:432.77:383.83:19-0.12:341.67:326:08Third Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Show All
What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 8:30 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 transitional phase. Tonight's moon is 35% 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 shifting between spring and neap.

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 Third Quarter (35% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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