38.1450’ N, 121.6920’ W

Rio Vista, CA

76°
H 77°
L 57°
WSW
15mph
Low tide
2:35 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 46m at 2:35 pm (1.4 ft)
Next high tide : 8:23 pm (4.4 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:383.010:083.35:260.34:251.96:015:51First Quarter1Sun
2Mon12:243.16:150.25:351.76:025:50Waxing Gibbous2Mon
3Tue1:033.36:580.26:341.56:035:48Waxing Gibbous3Tue
4Wed12:203.31:353.37:360.37:261.36:045:46Waxing Gibbous4Wed
5Thu1:063.42:013.48:110.48:131.16:055:45Waxing Gibbous5Thu
6Fri1:483.42:223.58:420.58:570.86:065:43Full Moon6Fri
7Sat2:293.32:423.79:110.69:400.66:075:42Full Moon7Sat
8Sun3:113.23:033.99:400.710:250.56:085:40Full Moon8Sun
9Mon3:583.13:324.110:090.911:120.36:095:39Full Moon9Mon
10Tue4:512.94:074.310:421.06:105:37Waning Gibbous10Tue
11Wed5:532.74:494.412:040.211:20 AM1.26:105:36Waning Gibbous11Wed
12Thu7:052.65:364.31:030.212:071.46:115:35Waning Gibbous12Thu
13Fri8:232.56:314.12:110.21:061.56:125:33Third Quarter13Fri
14Sat9:402.67:373.83:210.12:241.76:135:32Third Quarter14Sat
15Sun10:472.89:013.64:280.13:511.66:145:30Third Quarter15Sun
16Mon11:433.110:323.45:270.05:101.46:155:29Waning Crescent16Mon
17Tue12:293.46:200.06:201.16:165:27Waning Crescent17Tue
18Wed1:093.67:070.07:220.86:175:26Waning Crescent18Wed
19Thu12:493.31:453.87:490.28:170.66:185:25Waning Crescent19Thu
20Fri1:423.22:183.98:270.39:090.36:195:23New Moon20Fri
21Sat2:323.12:473.99:010.69:580.26:205:22New Moon21Sat
22Sun3:223.03:143.99:320.810:440.16:215:21New Moon22Sun
23Mon4:142.83:394.010:001.011:300.06:225:19New Moon23Mon
24Tue5:092.74:034.010:261.26:235:18Waxing Crescent24Tue
25Wed6:072.64:303.912:150.010:57 AM1.46:245:17Waxing Crescent25Wed
26Thu7:082.65:023.81:030.011:36 AM1.66:255:16Waxing Crescent26Thu
27Fri8:102.65:423.71:520.012:251.86:265:14Waxing Crescent27Fri
28Sat9:112.76:303.42:450.11:281.96:275:13First Quarter28Sat
29Sun10:072.87:333.13:380.12:441.96:285:12First Quarter29Sun
30Mon10:573.09:072.94:290.24:031.86:295:11First Quarter30Mon
31Tue11:393.210:422.95:160.25:121.56:305:10First Quarter31Tue
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 neap phase. Tonight's moon is 56% 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 (56% 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