Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Napa, CA.
Next low tide : 10:23 am (-0.6 ft)
Next high tide : in 4h 59m at 2:53 am (7.1 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Jan 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:576.36:414.612:111.01:502.07:264:59Third Quarter1Wed
2Thu7:416.58:104.41:021.42:531.67:265:00Third Quarter2Thu
3Fri8:256.89:364.61:581.83:471.17:265:01Third Quarter3Fri
4Sat9:097.210:484.92:572.04:350.57:265:02Waning Crescent4Sat
5Sun9:547.511:455.33:542.25:190.07:265:03Waning Crescent5Sun
6Mon10:387.94:472.36:01-0.57:265:04Waning Crescent6Mon
7Tue12:355.711:24 AM8.25:372.36:44-0.97:265:05New Moon7Tue
8Wed1:216.012:118.46:272.37:28-1.27:265:05New Moon8Wed
9Thu2:056.312:598.47:172.28:12-1.37:255:06New Moon9Thu
10Fri2:486.51:498.38:092.08:56-1.27:255:07Waxing Crescent10Fri
11Sat3:316.72:417.99:031.99:42-0.97:255:08Waxing Crescent11Sat
12Sun4:166.93:367.310:021.810:29-0.57:255:09Waxing Crescent12Sun
13Mon5:027.04:376.511:081.611:180.07:255:10Waxing Crescent13Mon
14Tue5:507.25:475.712:211.57:245:11First Quarter14Tue
15Wed6:417.37:105.212:110.61:381.27:245:13First Quarter15Wed
16Thu7:357.48:424.91:111.22:530.87:245:14First Quarter16Thu
17Fri8:297.510:065.12:161.73:590.57:235:15Waxing Gibbous17Fri
18Sat9:227.611:145.43:222.04:560.17:235:16Waxing Gibbous18Sat
19Sun10:117.64:232.25:43-0.17:225:17Waxing Gibbous19Sun
20Mon12:095.710:56 AM7.65:182.36:25-0.37:225:18Waxing Gibbous20Mon
21Tue12:545.911:38 AM7.66:062.47:02-0.47:215:19Full Moon21Tue
22Wed1:346.012:177.56:492.37:36-0.47:215:20Full Moon22Wed
23Thu2:096.112:547.37:292.38:07-0.37:205:21Full Moon23Thu
24Fri2:416.11:307.18:072.28:38-0.27:195:22Full Moon24Fri
25Sat3:106.12:056.88:442.29:080.07:195:23Waning Gibbous25Sat
26Sun3:396.12:426.59:222.19:380.27:185:25Waning Gibbous26Sun
27Mon4:086.23:216.110:022.010:100.57:175:26Waning Gibbous27Mon
28Tue4:406.34:055.610:481.910:440.87:165:27Waning Gibbous28Tue
29Wed5:146.34:585.111:411.811:221.27:165:28Third Quarter29Wed
30Thu5:546.46:084.612:431.67:155:29Third Quarter30Thu
31Fri6:396.67:404.412:091.71:521.37:145:30Third Quarter31Fri
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 6:38 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 spring phase. Tonight's moon is 97% 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 Full Moon (97% 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