Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Napa, CA.
Next low tide : 7:26 pm (2.8 ft)
Next high tide : in 1h 07m at 2:46 pm (5.9 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 - Aug 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:495.110:108.14:57-0.14:142.86:128:18Waxing Gibbous1Sun
2Mon12:445.55:55-0.55:232.76:138:17Waxing Gibbous2Mon
3Tue1:295.96:47-0.86:242.56:138:16Waxing Gibbous3Tue
4Wed12:088.52:106.27:35-1.07:212.26:148:15Full Moon4Wed
5Thu1:038.52:496.58:20-1.08:151.96:158:14Full Moon5Thu
6Fri1:578.33:266.89:02-0.89:091.66:168:13Full Moon6Fri
7Sat2:507.94:037.09:43-0.510:031.46:178:12Waning Gibbous7Sat
8Sun3:427.34:407.210:230.010:581.26:188:11Waning Gibbous8Sun
9Mon4:376.55:177.311:020.611:551.16:198:10Waning Gibbous9Mon
10Tue5:375.85:567.311:441.26:208:08Waning Gibbous10Tue
11Wed6:475.26:387.212:571.012:301.96:208:07Third Quarter11Wed
12Thu8:134.87:267.02:041.01:252.46:218:06Third Quarter12Thu
13Fri9:524.88:196.93:150.92:352.86:228:05Third Quarter13Fri
14Sat11:135.19:176.94:220.73:503.06:238:03Third Quarter14Sat
15Sun12:095.35:200.54:542.96:248:02Waning Crescent15Sun
16Mon12:515.66:080.35:472.86:258:01Waning Crescent16Mon
17Tue1:245.76:480.26:312.66:267:59Waning Crescent17Tue
18Wed1:535.87:230.17:112.46:277:58Waning Crescent18Wed
19Thu12:347.32:186.07:530.07:472.26:287:57New Moon19Thu
20Fri1:147.32:436.28:220.08:232.06:287:55New Moon20Fri
21Sat1:547.13:086.48:500.28:591.76:297:54New Moon21Sat
22Sun2:356.93:346.69:180.49:371.46:307:53New Moon22Sun
23Mon3:186.64:026.99:470.710:191.26:317:51Waxing Crescent23Mon
24Tue4:056.24:327.110:191.111:051.06:327:50Waxing Crescent24Tue
25Wed4:585.75:067.210:541.511:580.86:337:48Waxing Crescent25Wed
26Thu6:035.35:477.311:342.06:347:47First Quarter26Thu
27Fri7:254.96:387.41:010.612:252.56:357:46First Quarter27Fri
28Sat9:024.87:407.42:130.51:332.86:357:44First Quarter28Sat
29Sun10:295.18:507.53:290.23:002.96:367:43First Quarter29Sun
30Mon11:305.510:007.74:370.04:212.86:377:41Waxing Gibbous30Mon
31Tue12:175.95:36-0.35:282.46:387:40Waxing Gibbous31Tue
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 5:06 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