Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 51m at 1:22 pm (-0.7 ft)
Next high tide : 7:49 pm (3.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Apr 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:173.811:352.83:041.85:160.46:507:30Third Quarter1Mon
2Tue9:243.64:171.86:170.46:487:31Third Quarter2Tue
3Wed12:283.010:50 AM3.55:351.77:120.46:477:32Third Quarter3Wed
4Thu1:123.112:203.46:491.48:020.46:457:33Waning Crescent4Thu
5Fri1:513.31:333.57:561.18:480.46:447:34Waning Crescent5Fri
6Sat2:263.52:353.58:580.79:300.56:427:35Waning Crescent6Sat
7Sun3:013.73:333.49:570.410:110.76:417:35New Moon7Sun
8Mon3:353.94:313.210:520.210:490.96:397:36New Moon8Mon
9Tue4:104.15:313.111:460.011:271.06:387:37New Moon9Tue
10Wed4:464.26:332.912:40-0.26:367:38Waxing Crescent10Wed
11Thu5:244.27:382.812:061.21:34-0.26:357:39Waxing Crescent11Thu
12Fri6:054.28:442.812:481.42:29-0.26:347:40Waxing Crescent12Fri
13Sat6:494.09:492.91:371.63:26-0.16:327:41Waxing Crescent13Sat
14Sun7:403.710:513.02:361.84:25-0.16:317:42First Quarter14Sun
15Mon8:423.411:463.23:451.95:220.06:297:43First Quarter15Mon
16Tue10:043.25:001.86:150.16:287:44First Quarter16Tue
17Wed12:363.411:29 AM3.06:101.67:030.26:277:45First Quarter17Wed
18Thu1:183.512:413.07:141.37:460.46:257:46Waxing Gibbous18Thu
19Fri1:563.61:412.98:101.08:250.66:247:47Waxing Gibbous19Fri
20Sat2:293.72:342.99:020.78:590.86:227:48Waxing Gibbous20Sat
21Sun2:583.73:232.89:500.59:291.06:217:49Waxing Gibbous21Sun
22Mon3:213.74:112.710:350.39:551.16:207:49Full Moon22Mon
23Tue3:383.74:582.711:170.210:211.36:187:50Full Moon23Tue
24Wed3:533.85:482.611:570.110:511.46:177:51Full Moon24Wed
25Thu4:133.96:392.612:370.06:167:52Full Moon25Thu
26Fri4:444.07:312.61:17-0.16:157:53Waning Gibbous26Fri
27Sat5:214.18:242.712:081.61:59-0.16:137:54Waning Gibbous27Sat
28Sun6:064.09:182.812:561.72:46-0.16:127:55Waning Gibbous28Sun
29Mon6:573.810:102.91:521.73:390.06:117:56Third Quarter29Mon
30Tue7:563.610:593.02:591.74:340.06:107:57Third Quarter30Tue
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 4:35 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 10% 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 (10% 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