38.1450’ N, 121.6920’ W

Rio Vista, CA

75°
H -°
L 55°
WSW
14mph
High tide
6:49 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 2:54 am (0.6 ft)
Next high tide : in 14m at 6:49 pm (4.0 ft)
Sunset today : 7:14 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waxing Crescent (22% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Aug 1880

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:222.97:320.26:071.85:167:22Waning Crescent1Sun
2Mon12:084.22:103.18:160.17:041.85:177:21Waning Crescent2Mon
3Tue12:514.22:523.28:550.17:571.85:187:20Waning Crescent3Tue
4Wed1:314.23:293.29:300.18:461.75:197:19New Moon4Wed
5Thu2:084.14:023.310:010.29:311.65:207:18New Moon5Thu
6Fri2:454.14:293.410:280.310:141.55:217:17New Moon6Fri
7Sat3:224.04:513.510:530.410:551.45:227:16New Moon7Sat
8Sun4:023.95:113.611:160.411:381.35:227:15Waxing Crescent8Sun
9Mon4:453.85:323.811:400.55:237:14Waxing Crescent9Mon
10Tue5:343.56:024.012:251.312:090.75:247:13Waxing Crescent10Tue
11Wed6:323.26:404.21:221.212:440.85:257:11First Quarter11Wed
12Thu7:462.97:274.32:331.11:261.15:267:10First Quarter12Thu
13Fri9:152.68:234.33:511.02:181.35:277:09First Quarter13Fri
14Sat10:412.69:294.35:060.73:211.65:287:08First Quarter14Sat
15Sun11:552.710:424.36:130.54:381.75:297:06Waxing Gibbous15Sun
16Mon12:562.97:120.25:591.75:297:05Waxing Gibbous16Mon
17Tue1:463.18:030.07:131.65:307:04Waxing Gibbous17Tue
18Wed12:534.32:323.38:50-0.18:191.55:317:02Full Moon18Wed
19Thu1:494.33:133.59:320.09:181.35:327:01Full Moon19Thu
20Fri2:414.13:533.710:120.110:121.25:337:00Full Moon20Fri
21Sat3:334.04:303.810:480.211:051.15:346:58Full Moon21Sat
22Sun4:253.75:074.011:220.411:571.05:356:57Waning Gibbous22Sun
23Mon5:203.55:434.011:550.75:366:56Waning Gibbous23Mon
24Tue6:203.26:204.112:511.012:270.95:366:54Waning Gibbous24Tue
25Wed7:263.06:594.11:491.01:021.25:376:53Third Quarter25Wed
26Thu8:372.87:454.02:530.91:441.45:386:51Third Quarter26Thu
27Fri9:512.78:394.04:000.82:371.65:396:50Third Quarter27Fri
28Sat11:012.89:423.95:050.63:421.85:406:48Third Quarter28Sat
29Sun12:013.06:020.54:491.85:416:47Waning Crescent29Sun
30Mon12:513.16:520.45:531.85:426:45Waning Crescent30Mon
31Tue1:333.37:350.36:511.65:436:44Waning Crescent31Tue
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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 (22% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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