Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 1:22 pm (-0.7 ft)
Next high tide : in 53m at 4:51 am (4.3 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 - Dec 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:232.42:254.18:491.611:10-0.27:054:47New Moon1Sun
2Mon5:122.42:584.29:331.711:47-0.27:054:46New Moon2Mon
3Tue5:592.53:394.210:211.77:064:46Waxing Crescent3Tue
4Wed6:422.64:254.112:24-0.211:12 AM1.77:074:46Waxing Crescent4Wed
5Thu7:252.75:173.91:04-0.212:081.77:084:46Waxing Crescent5Thu
6Fri8:072.96:163.61:46-0.11:121.67:094:46Waxing Crescent6Fri
7Sat8:503.17:273.32:310.02:261.57:104:46First Quarter7Sat
8Sun9:343.38:573.03:180.23:471.37:114:46First Quarter8Sun
9Mon10:183.610:292.84:060.35:051.07:124:46First Quarter9Mon
10Tue11:013.911:482.74:530.56:170.67:124:47Waxing Gibbous10Tue
11Wed11:434.25:390.77:240.27:134:47Waxing Gibbous11Wed
12Thu12:572.612:234.46:261.08:24-0.17:144:47Waxing Gibbous12Thu
13Fri2:012.51:034.67:131.29:19-0.47:154:47Full Moon13Fri
14Sat3:022.51:434.68:031.410:10-0.67:154:47Full Moon14Sat
15Sun4:022.62:244.68:561.610:57-0.67:164:48Full Moon15Sun
16Mon5:012.73:064.49:501.711:41-0.67:174:48Full Moon16Mon
17Tue5:562.83:504.310:431.87:174:48Waning Gibbous17Tue
18Wed6:453.04:374.012:22-0.511:38 AM1.87:184:49Waning Gibbous18Wed
19Thu7:313.15:303.71:03-0.312:341.87:184:49Waning Gibbous19Thu
20Fri8:143.36:303.41:42-0.11:361.87:194:50Waning Gibbous20Fri
21Sat8:583.47:423.02:200.12:441.77:194:50Third Quarter21Sat
22Sun9:413.59:042.72:590.43:561.57:204:51Third Quarter22Sun
23Mon10:233.710:242.53:370.65:071.27:204:51Third Quarter23Mon
24Tue11:033.811:372.44:150.96:130.97:214:52Third Quarter24Tue
25Wed11:393.94:531.17:130.67:214:52Waning Crescent25Wed
26Thu12:422.412:114.05:311.38:050.37:214:53Waning Crescent26Thu
27Fri1:412.412:384.16:111.58:520.17:224:54Waning Crescent27Fri
28Sat2:352.51:024.16:551.79:340.07:224:54Waning Crescent28Sat
29Sun3:252.51:304.27:441.810:13-0.17:224:55New Moon29Sun
30Mon4:102.62:054.38:341.810:50-0.27:224:56New Moon30Mon
31Tue4:512.72:454.39:251.87:234:57New Moon31Tue
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 9:06 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 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