Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 14m at 3:37 pm (0.7 ft)
Next high tide : 9:55 pm (4.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:50 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:073.312:264.16:541.38:140.36:376:00Waxing Gibbous1Sat
2Sun1:563.41:234.17:561.19:010.36:356:01Waxing Gibbous2Sun
3Mon2:403.62:164.18:531.09:440.36:346:02Full Moon3Mon
4Tue3:223.73:084.09:460.910:230.46:326:03Full Moon4Tue
5Wed4:023.73:583.810:360.811:000.56:316:04Full Moon5Wed
6Thu4:403.84:503.711:250.711:350.76:296:05Waning Gibbous6Thu
7Fri5:163.85:443.512:130.76:286:06Waning Gibbous7Fri
8Sat5:533.86:423.412:090.91:030.76:266:07Waning Gibbous8Sat
9Sun7:303.88:423.212:431.12:570.77:257:08Waning Gibbous9Sun
10Mon8:123.79:463.12:211.33:560.77:247:09Third Quarter10Mon
11Tue9:013.610:513.13:081.44:570.77:227:10Third Quarter11Tue
12Wed10:013.511:533.14:051.65:570.77:207:11Third Quarter12Wed
13Thu11:093.45:101.66:540.67:197:12Third Quarter13Thu
14Fri12:493.212:143.46:141.67:450.67:177:13Waning Crescent14Fri
15Sat1:383.31:103.47:151.58:300.67:167:14Waning Crescent15Sat
16Sun2:203.41:583.58:101.49:110.67:147:15Waning Crescent16Sun
17Mon2:563.42:413.59:001.29:480.77:137:16Waning Crescent17Mon
18Tue3:263.43:213.59:461.110:230.77:117:17New Moon18Tue
19Wed3:523.54:013.510:300.910:550.87:107:18New Moon19Wed
20Thu4:163.64:443.511:120.811:280.87:087:19New Moon20Thu
21Fri4:413.85:303.411:550.67:077:20New Moon21Fri
22Sat5:133.96:223.412:010.912:390.57:057:21Waxing Crescent22Sat
23Sun5:514.17:213.212:380.91:290.47:047:21Waxing Crescent23Sun
24Mon6:364.18:263.11:211.02:270.47:027:22Waxing Crescent24Mon
25Tue7:264.19:363.12:111.23:330.47:017:23First Quarter25Tue
26Wed8:253.910:473.13:111.34:420.46:597:24First Quarter26Wed
27Thu9:353.811:533.24:211.35:500.46:587:25First Quarter27Thu
28Fri10:553.65:351.36:510.36:567:26First Quarter28Fri
29Sat12:513.412:133.66:451.17:470.36:547:27Waxing Gibbous29Sat
30Sun1:423.51:203.57:510.98:380.36:537:28Waxing Gibbous30Sun
31Mon2:273.72:193.58:510.79:250.46:517:29Waxing Gibbous31Mon
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 6:46 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 neap phase. Tonight's moon is 50% 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 minimum.

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 (50% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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