Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Napa, CA.
Next low tide : 11:01 pm (2.7 ft)
Next high tide : in 5h 33m at 5:46 pm (5.8 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Aug 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:576.05:576.911:280.76:118:19Waxing Crescent1Tue
2Wed5:565.56:387.112:231.512:101.26:128:18First Quarter2Wed
3Thu7:115.07:267.31:271.31:001.66:138:17First Quarter3Thu
4Fri8:414.88:217.52:380.92:012.16:138:16First Quarter4Fri
5Sat10:124.99:207.83:480.53:122.36:148:15First Quarter5Sat
6Sun11:275.310:208.04:530.14:232.46:158:14Waxing Gibbous6Sun
7Mon12:255.75:50-0.35:292.36:168:13Waxing Gibbous7Mon
8Tue1:146.16:41-0.66:282.26:178:12Waxing Gibbous8Tue
9Wed12:148.41:586.47:29-0.87:231.96:188:10Full Moon9Wed
10Thu1:088.42:396.78:14-0.88:161.76:198:09Full Moon10Thu
11Fri2:008.23:196.98:57-0.69:081.56:208:08Full Moon11Fri
12Sat2:517.83:587.19:38-0.39:591.36:208:07Waning Gibbous12Sat
13Sun3:427.24:367.210:190.110:521.26:218:06Waning Gibbous13Sun
14Mon4:346.65:157.211:010.611:471.26:228:04Waning Gibbous14Mon
15Tue5:306.05:557.111:441.16:238:03Waning Gibbous15Tue
16Wed6:335.46:387.012:461.212:311.76:248:02Third Quarter16Wed
17Thu7:505.07:266.81:511.21:272.26:258:00Third Quarter17Thu
18Fri9:194.98:196.83:001.12:342.56:267:59Third Quarter18Fri
19Sat10:415.09:166.84:061.03:442.76:277:58Third Quarter19Sat
20Sun11:415.310:106.95:040.84:462.76:287:56Waning Crescent20Sun
21Mon12:265.55:520.65:382.66:287:55Waning Crescent21Mon
22Tue1:025.76:330.46:232.46:297:54Waning Crescent22Tue
23Wed1:335.97:080.27:022.26:307:52Waning Crescent23Wed
24Thu12:307.22:016.17:410.27:392.06:317:51New Moon24Thu
25Fri1:117.22:296.38:110.28:151.86:327:50New Moon25Fri
26Sat1:527.22:586.58:410.28:521.56:337:48New Moon26Sat
27Sun2:347.03:276.79:120.49:311.36:347:47New Moon27Sun
28Mon3:186.83:596.99:450.610:141.16:357:45Waxing Crescent28Mon
29Tue4:056.44:337.110:210.911:020.96:357:44Waxing Crescent29Tue
30Wed4:586.05:127.211:001.311:560.86:367:42Waxing Crescent30Wed
31Thu6:015.65:577.311:451.86:377:41First Quarter31Thu
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 8:23 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 87% 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 (87% 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