Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 10m at 7:26 pm (2.8 ft)
Next high tide (tomorrow) : 1:06 am (8.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:56 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:256.61:546.87:510.88:170.97:046:52New Moon1Sun
2Mon2:086.52:237.08:221.08:520.67:056:51New Moon2Mon
3Tue2:526.42:547.18:551.29:300.47:066:49New Moon3Tue
4Wed3:396.33:277.29:311.510:110.27:076:48Waxing Crescent4Wed
5Thu4:296.04:047.310:101.810:580.17:086:46Waxing Crescent5Thu
6Fri5:265.84:477.210:542.111:510.17:096:45Waxing Crescent6Fri
7Sat6:305.65:387.011:482.47:106:43First Quarter7Sat
8Sun7:435.56:406.812:520.112:582.67:116:42First Quarter8Sun
9Mon8:565.77:526.72:000.22:242.67:126:40First Quarter9Mon
10Tue10:016.09:086.63:110.23:452.37:136:39First Quarter10Tue
11Wed10:536.410:206.74:160.14:531.97:146:37Waxing Gibbous11Wed
12Thu11:386.811:266.85:120.25:491.47:156:36Waxing Gibbous12Thu
13Fri12:197.16:020.26:400.87:166:34Waxing Gibbous13Fri
14Sat12:256.912:577.46:480.47:270.47:176:33Full Moon14Sat
15Sun1:216.91:347.67:310.78:110.17:176:31Full Moon15Sun
16Mon2:146.72:107.68:131.08:54-0.17:186:30Full Moon16Mon
17Tue3:056.62:457.68:541.49:37-0.27:196:29Full Moon17Tue
18Wed3:576.33:207.49:371.710:20-0.17:206:27Waning Gibbous18Wed
19Thu4:496.13:577.110:212.111:040.07:216:26Waning Gibbous19Thu
20Fri5:445.84:366.811:092.411:510.27:226:24Waning Gibbous20Fri
21Sat6:435.65:206.412:072.77:236:23Waning Gibbous21Sat
22Sun7:475.56:136.012:440.41:182.87:246:22Third Quarter22Sun
23Mon8:515.57:165.71:430.62:362.87:256:20Third Quarter23Mon
24Tue9:465.78:275.52:460.83:452.57:266:19Third Quarter24Tue
25Wed10:305.99:365.53:440.84:422.27:286:18Third Quarter25Wed
26Thu11:066.110:395.64:350.95:281.87:296:17Waning Crescent26Thu
27Fri11:376.411:345.75:190.96:081.47:306:15Waning Crescent27Fri
28Sat12:076.75:581.06:451.07:316:14Waning Crescent28Sat
29Sun12:255.911:36 AM7.05:341.16:190.56:325:13Waning Crescent29Sun
30Mon12:136.012:077.26:101.36:540.26:335:12New Moon30Mon
31Tue1:016.112:397.56:461.57:31-0.26:345:11New Moon31Tue
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 10:16 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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