Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Napa, CA.
Next low tide : 12:05 pm (0.1 ft)
Next high tide : in 1h 22m at 5:00 am (5.9 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Aug 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:377.64:467.310:24-0.310:551.26:118:18Waxing Crescent1Sat
2Sun4:346.95:277.511:060.211:581.06:128:17Waxing Crescent2Sun
3Mon5:386.16:107.611:510.96:138:16First Quarter3Mon
4Tue6:515.46:587.61:050.812:401.56:148:15First Quarter4Tue
5Wed8:205.07:517.62:180.71:392.16:158:14First Quarter5Wed
6Thu9:575.08:497.53:310.52:512.66:168:13First Quarter6Thu
7Fri11:195.29:487.54:390.34:062.86:178:12Waxing Gibbous7Fri
8Sat12:195.55:380.15:122.86:188:11Waxing Gibbous8Sat
9Sun1:055.86:270.06:072.76:188:10Waxing Gibbous9Sun
10Mon1:435.97:09-0.16:542.66:198:08Waxing Gibbous10Mon
11Tue12:207.42:166.07:45-0.17:352.46:208:07Full Moon11Tue
12Wed1:017.32:446.18:17-0.18:132.26:218:06Full Moon12Wed
13Thu1:407.23:096.18:460.18:482.06:228:05Full Moon13Thu
14Fri2:177.03:336.39:140.29:241.96:238:03Full Moon14Fri
15Sat2:556.73:566.49:410.510:001.76:248:02Waning Gibbous15Sat
16Sun3:346.34:226.610:080.810:381.66:258:01Waning Gibbous16Sun
17Mon4:165.94:496.710:371.111:211.46:268:00Waning Gibbous17Mon
18Tue5:045.55:216.811:081.66:267:58Waning Gibbous18Tue
19Wed6:035.05:586.912:101.311:44 AM2.06:277:57Third Quarter19Wed
20Thu7:224.76:447.01:081.112:292.46:287:55Third Quarter20Thu
21Fri9:004.67:407.12:170.91:302.86:297:54Third Quarter21Fri
22Sat10:314.88:447.33:290.62:513.06:307:53Third Quarter22Sat
23Sun11:335.29:507.64:350.24:092.96:317:51Waning Crescent23Sun
24Mon12:185.65:32-0.15:142.66:327:50Waning Crescent24Mon
25Tue12:576.06:21-0.46:122.26:337:48Waning Crescent25Tue
26Wed1:336.47:07-0.67:051.86:337:47New Moon26Wed
27Thu12:488.22:096.87:49-0.67:571.36:347:46New Moon27Thu
28Fri1:438.02:457.28:31-0.38:480.96:357:44New Moon28Fri
29Sat2:387.73:227.59:120.09:410.56:367:43Waxing Crescent29Sat
30Sun3:347.24:007.79:530.510:350.36:377:41Waxing Crescent30Sun
31Mon4:336.64:407.810:361.111:310.36:387:40Waxing Crescent31Mon
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 8:32 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 (71% illuminated). This places Napa, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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