Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 2:05 am (1.8 ft)
Next high tide : in 1h 45m at 7:24 pm (6.6 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:52 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:105.92:496.99:001.79:420.57:056:52New Moon1Sun
2Mon3:545.73:136.99:282.110:170.47:066:50Waxing Crescent2Mon
3Tue4:415.43:406.99:572.510:550.47:066:49Waxing Crescent3Tue
4Wed5:355.24:136.810:292.811:400.47:076:47Waxing Crescent4Wed
5Thu6:415.04:536.611:073.17:086:46Waxing Crescent5Thu
6Fri8:024.95:466.412:340.512:023.37:096:44First Quarter6Fri
7Sat9:245.06:526.31:390.51:353.47:106:43First Quarter7Sat
8Sun10:195.38:086.22:490.43:123.27:116:41First Quarter8Sun
9Mon10:565.69:226.33:530.34:202.87:126:40First Quarter9Mon
10Tue11:275.910:306.54:460.15:132.27:136:38Waxing Gibbous10Tue
11Wed11:576.411:336.75:320.16:001.67:146:37Waxing Gibbous11Wed
12Thu12:266.96:130.26:460.87:156:35Waxing Gibbous12Thu
13Fri12:336.812:577.46:530.57:320.17:166:34Full Moon13Fri
14Sat1:326.71:307.87:330.98:18-0.47:176:32Full Moon14Sat
15Sun2:316.62:058.28:141.49:06-0.87:186:31Full Moon15Sun
16Mon3:306.42:448.48:571.99:57-1.07:196:29Waning Gibbous16Mon
17Tue4:326.23:268.39:432.310:50-0.97:206:28Waning Gibbous17Tue
18Wed5:385.94:148.010:352.711:48-0.77:216:27Waning Gibbous18Wed
19Thu6:495.85:097.511:383.07:226:25Third Quarter19Thu
20Fri8:035.76:136.912:53-0.41:013.17:236:24Third Quarter20Fri
21Sat9:125.97:286.42:03-0.12:332.97:246:23Third Quarter21Sat
22Sun10:096.18:466.13:120.13:522.67:256:21Third Quarter22Sun
23Mon10:546.310:015.94:130.34:562.17:266:20Waning Crescent23Mon
24Tue11:316.511:075.85:030.55:471.67:276:19Waning Crescent24Tue
25Wed12:026.75:450.86:311.17:286:17Waning Crescent25Wed
26Thu12:045.712:286.86:211.17:090.77:296:16Waning Crescent26Thu
27Fri12:565.712:517.06:541.47:440.47:306:15New Moon27Fri
28Sat1:455.71:147.17:251.88:160.27:316:14New Moon28Sat
29Sun1:315.612:367.26:552.17:480.06:325:13New Moon29Sun
30Mon2:155.61:017.27:252.58:20-0.16:335:11New Moon30Mon
31Tue3:005.51:297.27:562.78:54-0.26:345:10Waxing Crescent31Tue
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 10:44 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 transitional phase. Tonight's moon is 61% 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 Third Quarter (61% 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