38.1450’ N, 121.6920’ W

Rio Vista, CA

66°
H -°
L 57°
WSW
14mph
Low tide
1:05 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 3h 15m at 1:05 am (0.7 ft)
Next high tide : 6:32 am (3.1 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:233.31:183.47:270.57:301.16:035:49Waxing Gibbous1Wed
2Thu1:093.31:453.58:040.68:190.96:045:47Waxing Gibbous2Thu
3Fri1:523.32:103.68:390.69:060.76:045:46Full Moon3Fri
4Sat2:363.32:363.89:140.79:520.56:055:44Full Moon4Sat
5Sun3:223.33:064.09:490.810:400.36:065:43Full Moon5Sun
6Mon4:123.23:424.210:260.811:300.26:075:41Waning Gibbous6Mon
7Tue5:083.14:244.311:070.96:085:40Waning Gibbous7Tue
8Wed6:103.05:114.212:230.211:53 AM1.06:095:38Waning Gibbous8Wed
9Thu7:182.96:054.11:210.212:481.26:105:37Waning Gibbous9Thu
10Fri8:282.97:073.82:250.21:551.36:115:35Third Quarter10Fri
11Sat9:383.08:233.63:300.23:101.36:125:34Third Quarter11Sat
12Sun10:413.29:483.44:320.24:251.26:135:32Third Quarter12Sun
13Mon11:373.411:053.35:300.15:351.06:145:31Waning Crescent13Mon
14Tue12:253.66:220.16:390.86:155:29Waning Crescent14Tue
15Wed12:103.31:073.87:090.27:370.56:165:28Waning Crescent15Wed
16Thu1:053.31:443.97:520.38:290.36:175:27Waning Crescent16Thu
17Fri1:553.22:183.98:310.59:180.26:185:25New Moon17Fri
18Sat2:443.22:493.99:070.710:040.16:195:24New Moon18Sat
19Sun3:323.13:173.99:400.910:480.06:205:23New Moon19Sun
20Mon4:213.03:443.910:101.011:310.06:215:21New Moon20Mon
21Tue5:122.94:103.810:411.26:225:20Waxing Crescent21Tue
22Wed6:042.94:393.812:130.011:15 AM1.36:235:19Waxing Crescent22Wed
23Thu6:592.85:133.712:560.111:57 AM1.46:245:17Waxing Crescent23Thu
24Fri7:542.85:543.51:420.212:461.56:255:16Waxing Crescent24Fri
25Sat8:502.96:443.32:310.31:461.66:265:15First Quarter25Sat
26Sun9:452.97:483.03:220.32:561.66:275:14First Quarter26Sun
27Mon10:363.19:202.84:130.44:091.56:285:12First Quarter27Mon
28Tue11:193.210:482.85:020.55:161.36:295:11First Quarter28Tue
29Wed11:563.311:532.85:470.56:171.06:305:10Waxing Gibbous29Wed
30Thu12:273.56:300.67:130.76:315:09Waxing Gibbous30Thu
31Fri12:482.912:553.77:100.78:050.56:325:08Waxing Gibbous31Fri
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 8% 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 (8% 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