Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 29m at 12:52 am (2.2 ft)
Next high tide : 5:55 am (6.2 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Mar 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:126.28:124.512:172.21:431.06:406:02Third Quarter1Thu
2Fri7:076.29:394.71:282.52:500.96:396:03Third Quarter2Fri
3Sat8:076.210:385.02:452.63:500.76:376:04Third Quarter3Sat
4Sun9:066.311:205.33:502.64:400.46:366:05Waning Crescent4Sun
5Mon9:596.511:545.54:432.45:220.26:346:06Waning Crescent5Mon
6Tue10:486.75:262.26:000.06:336:07Waning Crescent6Tue
7Wed12:245.811:33 AM6.96:041.96:34-0.16:316:08Waning Crescent7Wed
8Thu12:546.012:167.06:411.67:07-0.26:306:09New Moon8Thu
9Fri1:236.31:007.07:171.37:41-0.16:286:10New Moon9Fri
10Sat1:536.51:446.97:561.08:150.16:276:11New Moon10Sat
11Sun3:256.83:316.69:370.79:520.47:257:12Waxing Crescent11Sun
12Mon3:596.94:226.310:220.510:310.87:247:13Waxing Crescent12Mon
13Tue4:367.15:205.811:120.311:151.27:227:14Waxing Crescent13Tue
14Wed5:177.16:275.412:090.27:217:15Waxing Crescent14Wed
15Thu6:067.17:485.112:051.71:140.27:197:16First Quarter15Thu
16Fri7:046.99:155.11:082.12:280.17:187:17First Quarter16Fri
17Sat8:116.810:315.42:282.33:430.07:167:18First Quarter17Sat
18Sun9:236.811:315.83:522.34:51-0.17:157:19Waxing Gibbous18Sun
19Mon10:326.95:032.15:48-0.37:137:19Waxing Gibbous19Mon
20Tue12:196.211:35 AM7.06:031.76:37-0.37:127:20Waxing Gibbous20Tue
21Wed1:016.512:307.06:551.37:20-0.27:107:21Waxing Gibbous21Wed
22Thu1:386.71:226.97:411.08:00-0.17:097:22Full Moon22Thu
23Fri2:136.82:106.78:250.78:380.27:077:23Full Moon23Fri
24Sat2:466.82:566.59:060.59:140.57:057:24Full Moon24Sat
25Sun3:176.83:426.19:460.49:500.97:047:25Full Moon25Sun
26Mon3:476.74:285.810:250.310:261.37:027:26Waning Gibbous26Mon
27Tue4:186.65:165.411:060.411:031.77:017:27Waning Gibbous27Tue
28Wed4:506.46:115.011:500.411:462.16:597:28Waning Gibbous28Wed
29Thu5:276.27:174.812:400.56:587:29Waning Gibbous29Thu
30Fri6:116.08:354.712:402.41:390.66:567:30Third Quarter30Fri
31Sat7:075.79:514.81:532.62:440.66:557:31Third Quarter31Sat
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 3:23 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 38% 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 First Quarter (38% 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