38.1450’ N, 121.6920’ W

Rio Vista, CA

55°
H -°
L 47°
WSW
5mph
Low tide
10:05 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, November 8, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 08m at 10:05 pm (-0.3 ft)
Next high tide (tomorrow) : 3:40 am (2.6 ft)
Sunset today : 5:00 pm
Sunrise tomorrow : 6:40 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Aug 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:284.34:373.310:37-0.39:532.06:098:16Full Moon1Mon
2Tue3:084.25:133.411:10-0.210:371.96:108:15Full Moon2Tue
3Wed3:494.05:473.511:390.011:201.86:108:14Waning Gibbous3Wed
4Thu4:303.96:183.612:060.26:118:13Waning Gibbous4Thu
5Fri5:143.66:473.712:041.712:310.46:128:12Waning Gibbous5Fri
6Sat6:003.37:143.812:511.712:570.66:138:11Waning Gibbous6Sat
7Sun6:563.07:423.81:471.61:270.86:148:10Third Quarter7Sun
8Mon8:152.78:143.92:561.62:041.16:158:09Third Quarter8Mon
9Tue9:512.58:524.04:151.42:471.46:168:08Third Quarter9Tue
10Wed11:172.49:394.15:301.23:371.66:178:07Third Quarter10Wed
11Thu12:302.56:360.94:361.86:178:05Waning Crescent11Thu
12Fri1:292.67:310.65:411.96:188:04Waning Crescent12Fri
13Sat2:182.88:190.36:501.96:198:03Waning Crescent13Sat
14Sun12:264.43:002.99:030.17:561.86:208:02Waning Crescent14Sun
15Mon1:214.53:373.09:430.08:571.76:218:00New Moon15Mon
16Tue2:154.54:123.210:220.09:541.56:227:59New Moon16Tue
17Wed3:104.54:483.410:590.110:491.36:237:58New Moon17Wed
18Thu4:054.35:243.711:350.211:461.16:247:57Waxing Crescent18Thu
19Fri5:024.06:033.912:100.46:257:55Waxing Crescent19Fri
20Sat6:033.76:454.112:461.012:460.66:257:54Waxing Crescent20Sat
21Sun7:113.37:314.21:510.91:240.96:267:53First Quarter21Sun
22Mon8:272.98:224.23:020.82:081.16:277:51First Quarter22Mon
23Tue9:472.89:184.24:150.73:001.46:287:50First Quarter23Tue
24Wed11:052.810:194.25:250.44:031.76:297:48First Quarter24Wed
25Thu12:142.96:260.25:101.86:307:47Waxing Gibbous25Thu
26Fri1:113.17:200.06:161.96:317:46Waxing Gibbous26Fri
27Sat12:124.11:583.38:07-0.27:161.86:317:44Waxing Gibbous27Sat
28Sun1:004.12:403.48:49-0.28:101.86:327:43Waxing Gibbous28Sun
29Mon1:444.13:173.59:26-0.18:581.66:337:41Full Moon29Mon
30Tue2:264.03:503.510:000.09:421.56:347:40Full Moon30Tue
31Wed3:063.94:203.610:300.210:231.46:357:38Full Moon31Wed
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