Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 4h 13m at 10:23 am (-0.6 ft)
Next high tide : 5:16 pm (5.7 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Jun 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:077.92:555.88:21-1.18:032.05:468:27Full Moon1Sat
2Sun1:508.03:456.09:05-1.38:532.15:468:27Full Moon2Sun
3Mon2:368.04:356.19:52-1.49:472.25:468:28Waning Gibbous3Mon
4Tue3:257.85:266.210:40-1.310:462.25:468:28Waning Gibbous4Tue
5Wed4:187.46:176.311:30-1.111:522.25:458:29Waning Gibbous5Wed
6Thu5:176.97:106.512:23-0.75:458:30Third Quarter6Thu
7Fri6:226.28:036.71:082.01:19-0.35:458:30Third Quarter7Fri
8Sat7:375.68:566.92:281.72:170.25:458:31Third Quarter8Sat
9Sun9:005.19:457.23:431.33:160.75:458:31Third Quarter9Sun
10Mon10:235.010:327.44:490.84:131.15:458:32Waning Crescent10Mon
11Tue11:385.111:157.65:450.35:081.55:448:32Waning Crescent11Tue
12Wed12:425.36:34-0.15:591.85:448:33Waning Crescent12Wed
13Thu1:385.57:18-0.36:462.05:448:33Waning Crescent13Thu
14Fri12:347.62:275.67:57-0.57:312.25:448:34New Moon14Fri
15Sat1:107.53:115.78:34-0.68:152.45:448:34New Moon15Sat
16Sun1:457.43:525.79:09-0.68:562.55:458:34New Moon16Sun
17Mon2:217.24:305.79:43-0.59:382.55:458:35New Moon17Mon
18Tue2:567.05:065.810:16-0.410:212.65:458:35Waxing Crescent18Tue
19Wed3:336.75:425.810:51-0.311:072.65:458:35Waxing Crescent19Wed
20Thu4:126.36:185.811:26-0.111:582.55:458:35Waxing Crescent20Thu
21Fri4:565.96:555.912:040.25:458:36Waxing Crescent21Fri
22Sat5:465.47:356.112:572.412:450.55:468:36First Quarter22Sat
23Sun6:474.98:166.32:032.21:300.95:468:36First Quarter23Sun
24Mon8:034.68:586.63:081.82:211.25:468:36First Quarter24Mon
25Tue9:294.59:417.04:071.33:161.55:478:36First Quarter25Tue
26Wed10:514.610:257.44:590.84:121.85:478:36Waxing Gibbous26Wed
27Thu12:004.95:460.25:072.05:478:36Waxing Gibbous27Thu
28Fri1:005.36:32-0.36:002.25:488:36Waxing Gibbous28Fri
29Sat1:525.77:17-0.86:522.25:488:36Full Moon29Sat
30Sun12:428.42:416.08:03-1.17:452.25:498:36Full Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415623)

Common Questions About Napa, CA Tides

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

Slack tide in Napa, CA is approximately 1:49 pm — 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 93% 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 Gibbous (93% 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