38.1450’ N, 121.6920’ W

Rio Vista, CA

47°
H 75°
L 48°
WSW
1mph
Low tide
9:00 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, November 9, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 3h 53m at 9:00 am (1.2 ft)
Next high tide : 2:43 pm (4.1 ft)
Sunset today : 4:59 pm
Sunrise tomorrow : 6:41 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Aug 1779

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:013.86:413.612:320.35:167:23Waning Gibbous1Sun
2Mon5:463.57:073.812:411.61:000.55:167:22Waning Gibbous2Mon
3Tue6:403.27:373.91:341.61:330.75:177:21Third Quarter3Tue
4Wed7:502.98:164.12:441.52:130.95:187:20Third Quarter4Wed
5Thu9:312.69:024.24:071.32:591.25:197:19Third Quarter5Thu
6Fri11:062.59:564.45:281.13:521.55:207:18Third Quarter6Fri
7Sat12:242.56:380.74:531.75:217:17Waning Crescent7Sat
8Sun1:282.77:390.46:031.85:227:15Waning Crescent8Sun
9Mon2:232.88:320.17:161.85:237:14Waning Crescent9Mon
10Tue12:504.63:123.09:20-0.18:241.85:237:13New Moon10Tue
11Wed1:464.63:573.210:04-0.29:261.65:247:12New Moon11Wed
12Thu2:414.54:403.410:45-0.110:241.55:257:11New Moon12Thu
13Fri3:354.45:213.511:230.011:201.45:267:09Waxing Crescent13Fri
14Sat4:314.16:013.712:000.15:277:08Waxing Crescent14Sat
15Sun5:283.86:423.912:171.312:360.45:287:07Waxing Crescent15Sun
16Mon6:313.57:244.01:161.21:110.65:297:06Waxing Crescent16Mon
17Tue7:393.18:084.02:211.11:480.95:307:04First Quarter17Tue
18Wed8:542.98:574.13:301.02:301.25:307:03First Quarter18Wed
19Thu10:122.89:494.14:400.83:201.55:317:02First Quarter19Thu
20Fri11:252.810:434.15:450.54:181.75:327:00First Quarter20Fri
21Sat12:282.96:430.35:201.85:336:59Waxing Gibbous21Sat
22Sun1:223.17:330.16:211.95:346:58Waxing Gibbous22Sun
23Mon12:244.12:083.28:170.07:171.95:356:56Waxing Gibbous23Mon
24Tue1:084.12:483.38:570.08:091.85:366:55Waxing Gibbous24Tue
25Wed1:484.13:243.49:320.08:551.75:376:53Full Moon25Wed
26Thu2:254.03:563.410:040.19:381.65:386:52Full Moon26Thu
27Fri3:003.94:233.510:320.310:171.55:386:51Full Moon27Fri
28Sat3:363.84:463.610:580.410:551.45:396:49Full Moon28Sat
29Sun4:133.75:063.711:230.511:341.35:406:48Waning Gibbous29Sun
30Mon4:543.65:283.811:480.65:416:46Waning Gibbous30Mon
31Tue5:413.35:584.012:171.212:180.85:426:45Waning Gibbous31Tue
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 0% 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 New Moon (0% 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