Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, June 8, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 40m at 2:21 pm (0.6 ft)
Next high tide : 9:03 pm (6.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Mar 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:046.82:546.89:080.99:250.16:406:02Waning Gibbous1Mon
2Tue3:387.03:516.210:000.610:040.76:386:03Waning Gibbous2Tue
3Wed4:157.24:575.610:570.410:471.46:376:04Waning Gibbous3Wed
4Thu4:577.36:195.012:030.36:356:05Third Quarter4Thu
5Fri5:467.27:584.81:170.16:346:06Third Quarter5Fri
6Sat6:477.19:345.112:482.52:350.06:326:07Third Quarter6Sat
7Sun7:567.110:435.52:172.83:47-0.26:316:08Waning Crescent7Sun
8Mon9:067.111:345.83:412.84:48-0.46:296:09Waning Crescent8Mon
9Tue10:107.14:482.55:39-0.56:286:10Waning Crescent9Tue
10Wed12:156.111:07 AM7.25:422.26:22-0.56:266:11Waning Crescent10Wed
11Thu12:516.311:57 AM7.16:291.87:01-0.46:256:12New Moon11Thu
12Fri1:236.312:436.97:121.57:35-0.26:236:13New Moon12Fri
13Sat1:536.41:266.77:511.38:070.16:226:14New Moon13Sat
14Sun3:196.43:086.39:281.19:380.47:207:15New Moon14Sun
15Mon3:436.43:515.910:050.910:080.97:197:16Waxing Crescent15Mon
16Tue4:076.44:355.510:430.810:381.37:177:17Waxing Crescent16Tue
17Wed4:326.45:255.111:230.711:091.87:167:18Waxing Crescent17Wed
18Thu5:006.46:264.712:070.77:147:19Waxing Crescent18Thu
19Fri5:346.37:484.51:000.77:137:20First Quarter19Fri
20Sat6:176.19:324.512:312.72:040.77:117:21First Quarter20Sat
21Sun7:136.010:544.81:473.03:160.67:097:22First Quarter21Sun
22Mon8:216.011:415.13:233.14:220.37:087:23First Quarter22Mon
23Tue9:316.14:362.95:170.17:067:24Waxing Gibbous23Tue
24Wed12:155.410:35 AM6.45:292.66:03-0.27:057:25Waxing Gibbous24Wed
25Thu12:455.711:32 AM6.76:132.26:44-0.47:037:26Waxing Gibbous25Thu
26Fri1:145.912:256.96:551.77:22-0.47:027:26Waxing Gibbous26Fri
27Sat1:436.31:167.07:361.18:00-0.37:007:27Full Moon27Sat
28Sun2:126.62:086.98:200.68:370.06:597:28Full Moon28Sun
29Mon2:447.03:026.79:050.19:150.46:577:29Full Moon29Mon
30Tue3:177.33:596.39:53-0.39:550.96:567:30Waning Gibbous30Tue
31Wed3:527.55:015.910:44-0.510:381.56:547:31Waning Gibbous31Wed
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 5:42 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 neap phase. Tonight's moon is 46% 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 minimum.

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 (46% illuminated). This places Napa, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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