38.1450’ N, 121.6920’ W

Rio Vista, CA

78°
H -°
L 58°
W
8mph
High tide
1:11 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 7, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 9:06 am (0.1 ft)
Next high tide (tomorrow) : in 4h 32m at 1:11 am (4.1 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waning Crescent (14% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1894

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:463.14:264.010:481.06:025:49Waxing Crescent1Mon
2Tue5:452.94:574.012:090.211:17 AM1.26:035:48Waxing Crescent2Tue
3Wed6:492.75:314.01:030.211:50 AM1.46:045:46Waxing Crescent3Wed
4Thu7:582.76:103.81:590.212:321.76:055:45First Quarter4Thu
5Fri9:072.76:593.62:590.21:291.96:065:43First Quarter5Fri
6Sat10:122.88:083.43:580.22:442.06:075:42First Quarter6Sat
7Sun11:093.09:423.24:540.14:041.96:085:40First Quarter7Sun
8Mon11:563.211:033.25:450.15:161.76:095:39First Quarter8Mon
9Tue12:373.36:290.26:181.56:105:37Waxing Gibbous9Tue
10Wed12:053.21:113.57:080.37:111.26:115:36Waxing Gibbous10Wed
11Thu12:553.21:403.57:430.48:001.06:125:34Waxing Gibbous11Thu
12Fri1:393.22:033.68:140.58:440.86:125:33Waxing Gibbous12Fri
13Sat2:203.12:223.78:430.79:270.66:135:31Full Moon13Sat
14Sun3:003.02:393.89:090.810:080.56:145:30Full Moon14Sun
15Mon3:432.83:014.09:361.010:500.36:155:29Full Moon15Mon
16Tue4:312.73:324.210:061.111:350.26:165:27Waning Gibbous16Tue
17Wed5:262.64:094.310:421.26:175:26Waning Gibbous17Wed
18Thu6:312.54:534.312:250.111:25 AM1.46:185:25Waning Gibbous18Thu
19Fri7:432.55:444.21:240.112:191.56:195:23Waning Gibbous19Fri
20Sat8:552.56:433.92:290.11:291.76:205:22Third Quarter20Sat
21Sun10:022.77:573.63:350.12:541.76:215:20Third Quarter21Sun
22Mon10:592.99:293.44:370.14:191.56:225:19Third Quarter22Mon
23Tue11:473.210:583.35:320.15:341.26:235:18Waning Crescent23Tue
24Wed12:283.56:220.16:410.86:245:17Waning Crescent24Wed
25Thu12:093.21:063.77:060.27:410.56:255:15Waning Crescent25Thu
26Fri1:093.21:403.97:470.48:370.26:265:14Waning Crescent26Fri
27Sat2:033.12:124.08:250.69:300.06:275:13New Moon27Sat
28Sun2:562.92:414.18:590.810:19-0.26:295:12New Moon28Sun
29Mon3:492.83:094.19:321.111:07-0.36:305:11New Moon29Mon
30Tue4:462.73:374.110:031.311:54-0.36:315:09Waxing Crescent30Tue
31Wed5:452.64:074.010:361.56:325:08Waxing Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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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 14% 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 Waning Crescent (14% 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