38.1450’ N, 121.6920’ W

Rio Vista, CA

65°
H -°
L 56°
WSW
15mph
Low tide
7:25 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, September 6, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 8h 10m at 7:25 am (0.3 ft)
Next high tide : 1:26 pm (2.9 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:40 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 1898

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:362.66:141.05:550.85:096:57Waxing Gibbous1Sun
2Mon12:163.512:382.67:110.76:321.05:086:58Waxing Gibbous2Mon
3Tue12:393.61:352.68:050.47:091.15:076:59Waxing Gibbous3Tue
4Wed1:023.82:302.68:570.17:491.35:067:00Full Moon4Wed
5Thu1:314.03:272.59:48-0.28:351.45:057:01Full Moon5Thu
6Fri2:074.24:252.610:37-0.49:261.55:047:02Full Moon6Fri
7Sat2:494.35:242.611:26-0.610:201.55:027:03Full Moon7Sat
8Sun3:364.36:222.712:15-0.65:017:04Waning Gibbous8Sun
9Mon4:274.27:172.91:04-0.65:007:05Waning Gibbous9Mon
10Tue5:243.98:113.112:221.51:55-0.54:597:06Waning Gibbous10Tue
11Wed6:283.69:033.31:311.52:47-0.34:587:06Third Quarter11Wed
12Thu7:463.29:543.52:461.43:38-0.14:587:07Third Quarter12Thu
13Fri9:152.910:433.84:021.24:280.14:577:08Third Quarter13Fri
14Sat10:392.711:283.95:140.95:170.34:567:09Waning Crescent14Sat
15Sun11:522.66:220.66:030.54:557:10Waning Crescent15Sun
16Mon12:084.112:562.57:230.26:460.84:547:11Waning Crescent16Mon
17Tue12:454.21:552.58:18-0.17:281.04:537:12Waning Crescent17Tue
18Wed1:184.22:512.59:08-0.38:081.34:527:13New Moon18Wed
19Thu1:494.23:462.69:54-0.48:491.54:527:13New Moon19Thu
20Fri2:184.24:402.610:36-0.59:301.64:517:14New Moon20Fri
21Sat2:474.15:312.711:15-0.610:131.74:507:15New Moon21Sat
22Sun3:194.16:182.811:52-0.510:571.74:507:16Waxing Crescent22Sun
23Mon3:554.07:013.012:27-0.44:497:17Waxing Crescent23Mon
24Tue4:353.87:423.11:00-0.34:487:18Waxing Crescent24Tue
25Wed5:193.68:223.212:341.71:32-0.14:487:18Waxing Crescent25Wed
26Thu6:083.39:013.21:291.62:040.04:477:19First Quarter26Thu
27Fri7:043.09:383.32:301.62:390.24:477:20First Quarter27Fri
28Sat8:112.710:123.43:361.43:160.44:467:21First Quarter28Sat
29Sun9:362.510:423.64:431.23:540.64:467:21First Quarter29Sun
30Mon11:022.311:113.85:500.94:340.94:457:22Waxing Gibbous30Mon
31Tue12:172.36:530.65:151.14:457:23Waxing 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 transitional phase. Tonight's moon is 34% 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 Third Quarter (34% 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