38.1450’ N, 121.6920’ W

Rio Vista, CA

83°
H 92°
L 58°
N
6mph
High tide
2:16 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 7, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 7:37 pm (1.6 ft)
Next high tide : in 1h 49m at 2:16 pm (3.1 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waning Crescent (14% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:193.610:123.12:261.63:430.05:096:57First Quarter1Wed
2Thu8:403.310:583.33:431.44:370.15:086:58First Quarter2Thu
3Fri10:103.111:423.64:581.15:290.35:076:59First Quarter3Fri
4Sat11:313.06:080.76:170.45:067:00Waxing Gibbous4Sat
5Sun12:223.812:392.97:130.47:010.65:057:01Waxing Gibbous5Sun
6Mon12:594.01:412.88:130.17:440.95:047:02Waxing Gibbous6Mon
7Tue1:334.12:412.79:09-0.28:241.15:037:03Full Moon7Tue
8Wed2:064.23:402.610:01-0.59:051.35:027:04Full Moon8Wed
9Thu2:384.24:412.610:51-0.69:451.55:017:04Full Moon9Thu
10Fri3:114.25:422.711:37-0.710:281.75:007:05Waning Gibbous10Fri
11Sat3:444.16:392.812:22-0.74:597:06Waning Gibbous11Sat
12Sun4:223.97:312.91:07-0.64:587:07Waning Gibbous12Sun
13Mon5:043.78:203.012:061.91:51-0.54:577:08Waning Gibbous13Mon
14Tue5:523.59:073.21:041.92:35-0.34:567:09Third Quarter14Tue
15Wed6:523.19:533.32:111.93:20-0.14:557:10Third Quarter15Wed
16Thu8:132.810:363.43:231.74:040.24:547:11Third Quarter16Thu
17Fri9:492.611:153.54:341.54:450.44:537:12Third Quarter17Fri
18Sat11:102.411:503.65:411.25:250.64:537:12Waning Crescent18Sat
19Sun12:172.46:430.96:010.94:527:13Waning Crescent19Sun
20Mon12:203.71:172.37:390.66:351.14:517:14Waning Crescent20Mon
21Tue12:433.82:132.38:300.37:091.34:507:15Waning Crescent21Tue
22Wed1:043.93:082.39:160.17:471.54:507:16New Moon22Wed
23Thu1:274.14:042.310:00-0.18:301.64:497:17New Moon23Thu
24Fri1:584.24:592.410:42-0.39:201.74:487:17New Moon24Fri
25Sat2:364.35:502.511:23-0.410:131.84:487:18New Moon25Sat
26Sun3:214.46:372.612:04-0.54:477:19Waxing Crescent26Sun
27Mon4:104.37:212.812:46-0.54:477:20Waxing Crescent27Mon
28Tue5:054.18:043.012:071.71:30-0.44:467:20Waxing Crescent28Tue
29Wed6:053.88:483.21:121.62:17-0.34:467:21First Quarter29Wed
30Thu7:153.49:333.52:231.43:04-0.14:457:22First Quarter30Thu
31Fri8:363.110:183.73:371.23:510.14:457:23First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Collapse All
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 Waning 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