38.1450’ N, 121.6920’ W

Rio Vista, CA

83°
H 89°
L 56°
NW
9mph
High tide
6:18 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:57 am (0.6 ft)
Next high tide : in 5h 22m at 6:18 pm (4.0 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Apr 1883

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:563.311:213.23:501.55:170.65:586:36Third Quarter1Sun
2Mon10:223.35:011.46:100.65:576:37Waning Crescent2Mon
3Tue12:043.311:41 AM3.36:081.27:000.65:556:38Waning Crescent3Tue
4Wed12:423.512:473.37:120.97:460.75:546:39Waning Crescent4Wed
5Thu1:183.61:463.38:110.68:310.75:526:40Waning Crescent5Thu
6Fri1:543.82:423.39:080.39:140.85:516:41New Moon6Fri
7Sat2:324.03:403.210:030.19:570.95:496:42New Moon7Sat
8Sun3:114.14:393.210:56-0.110:411.05:486:43New Moon8Sun
9Mon3:534.25:413.111:48-0.211:271.15:466:44Waxing Crescent9Mon
10Tue4:374.26:433.112:42-0.25:456:45Waxing Crescent10Tue
11Wed5:254.07:453.112:161.21:37-0.15:436:45Waxing Crescent11Wed
12Thu6:193.88:473.21:121.32:340.05:426:46First Quarter12Thu
13Fri7:203.69:473.32:141.43:310.15:406:47First Quarter13Fri
14Sat8:333.310:423.43:231.44:280.15:396:48First Quarter14Sat
15Sun9:523.111:333.64:311.35:210.25:376:49First Quarter15Sun
16Mon11:053.05:371.16:100.45:366:50Waxing Gibbous16Mon
17Tue12:183.712:093.06:370.86:550.55:356:51Waxing Gibbous17Tue
18Wed12:573.81:053.07:320.67:360.75:336:52Waxing Gibbous18Wed
19Thu1:333.81:563.08:220.48:130.95:326:53Waxing Gibbous19Thu
20Fri2:043.82:442.99:090.28:471.05:316:54Full Moon20Fri
21Sat2:323.83:322.99:530.19:191.25:296:55Full Moon21Sat
22Sun2:543.84:192.910:340.09:501.35:286:56Full Moon22Sun
23Mon3:143.85:062.911:13-0.110:221.35:276:57Full Moon23Mon
24Tue3:363.85:532.911:51-0.110:591.45:256:58Waning Gibbous24Tue
25Wed4:063.96:392.912:280.05:246:58Waning Gibbous25Wed
26Thu4:443.87:262.91:070.05:236:59Waning Gibbous26Thu
27Fri5:273.78:143.012:281.41:490.15:217:00Waning Gibbous27Fri
28Sat6:183.69:023.11:221.52:360.25:207:01Third Quarter28Sat
29Sun7:163.39:503.22:241.43:280.25:197:02Third Quarter29Sun
30Mon8:283.110:353.33:351.34:210.45:187:03Third Quarter30Mon
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 Waxing 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