Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 50m at 2:26 pm (0.2 ft)
Next high tide : 8:46 pm (3.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:553.212:133.86:111.77:540.46:376:00Waning Crescent1Wed
2Thu1:413.312:593.87:071.68:350.46:366:01Waning Crescent2Thu
3Fri2:213.31:393.87:581.59:120.46:346:02Waning Crescent3Fri
4Sat2:553.32:173.88:441.49:460.56:336:03New Moon4Sat
5Sun3:253.42:553.89:271.310:170.56:316:04New Moon5Sun
6Mon3:503.43:343.810:081.110:470.66:306:05New Moon6Mon
7Tue4:133.64:173.710:481.011:160.76:286:06New Moon7Tue
8Wed4:383.75:043.611:300.911:480.86:276:07Waxing Crescent8Wed
9Thu5:093.95:593.512:170.86:256:08Waxing Crescent9Thu
10Fri5:484.07:043.212:250.91:130.86:246:09Waxing Crescent10Fri
11Sat6:334.18:193.01:071.12:230.86:226:10First Quarter11Sat
12Sun7:264.19:392.91:591.23:410.76:216:11First Quarter12Sun
13Mon8:284.010:543.03:021.44:560.66:196:12First Quarter13Mon
14Tue9:413.911:593.14:141.56:030.46:186:13First Quarter14Tue
15Wed10:573.95:281.47:020.36:166:14Waxing Gibbous15Wed
16Thu12:543.312:063.96:371.37:550.26:156:15Waxing Gibbous16Thu
17Fri1:423.41:073.97:401.18:420.26:136:16Waxing Gibbous17Fri
18Sat2:263.62:023.88:381.09:250.36:126:17Full Moon18Sat
19Sun3:063.62:543.89:310.810:040.46:106:18Full Moon19Sun
20Mon3:433.73:463.710:210.710:410.66:096:19Full Moon20Mon
21Tue4:183.74:373.511:090.611:140.86:076:19Full Moon21Tue
22Wed4:513.85:313.411:560.511:461.06:056:20Waning Gibbous22Wed
23Thu5:243.86:283.212:440.56:046:21Waning Gibbous23Thu
24Fri5:563.87:273.112:171.11:350.56:026:22Waning Gibbous24Fri
25Sat6:313.78:303.012:531.32:310.56:016:23Waning Gibbous25Sat
26Sun7:123.69:343.01:381.53:300.55:596:24Third Quarter26Sun
27Mon8:043.410:363.12:331.74:300.55:586:25Third Quarter27Mon
28Tue9:133.311:323.13:391.75:260.55:566:26Third Quarter28Tue
29Wed10:313.24:471.76:180.55:556:27Third Quarter29Wed
30Thu12:213.211:38 AM3.25:521.67:040.55:536:28Waning Crescent30Thu
31Fri1:033.312:333.26:501.47:460.55:526:29Waning Crescent31Fri
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 5:36 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 transitional phase. Tonight's moon is 71% 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 Waning Gibbous (71% 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