Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 3h 39m at 7:04 am (-1.1 ft)
Next high tide : 1:59 pm (5.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:034.95:126.611:263.17:056:50Third Quarter1Wed
2Thu8:274.96:086.512:540.512:303.37:066:49Third Quarter2Thu
3Fri9:435.17:176.42:020.52:063.37:076:47Third Quarter3Fri
4Sat10:335.48:336.43:120.43:333.17:086:46Third Quarter4Sat
5Sun11:095.79:456.54:130.24:362.67:096:44Waning Crescent5Sun
6Mon11:416.110:526.75:040.15:282.07:106:43Waning Crescent6Mon
7Tue12:116.55:490.16:161.37:116:41Waning Crescent7Tue
8Wed12:427.06:300.37:030.67:126:40Waning Crescent8Wed
9Thu12:536.91:147.57:110.67:500.07:136:38New Moon9Thu
10Fri1:526.81:478.07:511.08:37-0.57:146:37New Moon10Fri
11Sat2:516.62:248.28:321.59:26-0.97:156:35New Moon11Sat
12Sun3:516.43:048.39:162.010:18-0.97:166:34Waxing Crescent12Sun
13Mon4:546.13:488.210:032.411:12-0.87:176:33Waxing Crescent13Mon
14Tue6:015.94:387.810:582.87:186:31Waxing Crescent14Tue
15Wed7:145.75:367.312:12-0.512:073.07:196:30First Quarter15Wed
16Thu8:295.76:436.71:19-0.21:363.17:206:28First Quarter16Thu
17Fri9:365.97:596.32:300.03:052.87:216:27First Quarter17Fri
18Sat10:286.19:166.03:360.24:182.47:226:26First Quarter18Sat
19Sun11:106.310:265.94:330.45:162.07:236:24Waxing Gibbous19Sun
20Mon11:446.511:285.85:200.66:041.57:246:23Waxing Gibbous20Mon
21Tue12:136.75:590.86:451.17:256:22Waxing Gibbous21Tue
22Wed12:225.812:376.86:341.17:220.77:266:20Waxing Gibbous22Wed
23Thu1:115.81:006.97:061.57:550.47:276:19Full Moon23Thu
24Fri1:585.71:227.17:361.88:260.27:286:18Full Moon24Fri
25Sat2:435.71:457.18:062.28:570.07:296:16Full Moon25Sat
26Sun3:275.62:117.28:372.59:29-0.17:306:15Full Moon26Sun
27Mon4:135.52:417.29:092.710:05-0.17:316:14Waning Gibbous27Mon
28Tue5:015.43:147.19:432.910:44-0.17:326:13Waning Gibbous28Tue
29Wed5:545.33:536.910:233.111:30-0.17:336:12Waning Gibbous29Wed
30Thu6:525.24:396.711:133.27:346:11Waning Gibbous30Thu
31Fri7:535.35:366.412:220.012:223.37:356:09Third Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415623)

Common Questions About Napa, CA Tides

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What time does the tide turn (slack tide) in Napa, CA today?

Slack tide in Napa, CA is approximately 10:31 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Napa, CA?

Napa, CA is currently in a spring phase. Tonight's moon is 4% 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 Napa, 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 Napa, CA?

Tide predictions for Napa, 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 Napa, CA?

Tide data for Napa, CA is sourced from NOAA Station #9415623. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415623.

What is the moon phase in Napa, CA tonight?

Tonight the moon over Napa, CA is Waning Crescent (4% illuminated). This places Napa, 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