Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Napa, CA.
Next low tide : 10:15 pm (2.8 ft)
Next high tide : in 5h 03m at 5:16 pm (5.7 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Aug 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:126.74:326.310:050.310:251.96:128:18Waxing Crescent1Sun
2Mon3:516.35:006.510:340.511:081.86:138:17Waxing Crescent2Mon
3Tue4:355.95:316.711:060.911:571.66:148:16Waxing Crescent3Tue
4Wed5:265.46:066.811:411.36:148:15Waxing Crescent4Wed
5Thu6:314.96:477.012:531.412:211.86:158:14First Quarter5Thu
6Fri7:574.67:367.21:581.21:122.26:168:13First Quarter6Fri
7Sat9:354.68:337.43:080.82:182.66:178:12First Quarter7Sat
8Sun10:594.99:347.74:150.43:342.76:188:11Waxing Gibbous8Sun
9Mon12:005.35:15-0.14:452.76:198:09Waxing Gibbous9Mon
10Tue12:485.76:08-0.45:482.56:208:08Waxing Gibbous10Tue
11Wed1:306.16:57-0.76:452.16:218:07Waxing Gibbous11Wed
12Thu12:308.42:106.57:43-0.87:391.86:218:06Full Moon12Thu
13Fri1:248.42:486.98:26-0.88:321.46:228:04Full Moon13Fri
14Sat2:198.13:277.29:09-0.59:261.16:238:03Full Moon14Sat
15Sun3:137.74:057.49:51-0.110:210.96:248:02Waning Gibbous15Sun
16Mon4:097.14:457.610:330.411:170.86:258:01Waning Gibbous16Mon
17Tue5:086.45:277.611:171.06:267:59Waning Gibbous17Tue
18Wed6:145.76:127.512:180.812:051.66:277:58Third Quarter18Wed
19Thu7:315.27:027.31:250.81:012.16:287:57Third Quarter19Thu
20Fri9:015.17:587.12:360.72:102.56:287:55Third Quarter20Fri
21Sat10:265.28:597.03:470.73:252.76:297:54Third Quarter21Sat
22Sun11:315.59:597.04:510.54:342.76:307:52Waning Crescent22Sun
23Mon12:205.75:440.45:312.66:317:51Waning Crescent23Mon
24Tue12:585.86:280.36:182.46:327:50Waning Crescent24Tue
25Wed1:306.07:050.26:592.26:337:48Waning Crescent25Wed
26Thu12:247.11:586.17:370.27:372.06:347:47New Moon26Thu
27Fri1:057.12:236.28:070.38:121.86:357:45New Moon27Fri
28Sat1:446.92:476.48:340.48:461.66:357:44New Moon28Sat
29Sun2:236.83:126.69:010.69:211.46:367:42New Moon29Sun
30Mon3:036.53:396.79:290.99:571.26:377:41Waxing Crescent30Mon
31Tue3:466.24:076.99:591.210:381.06:387:39Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415623)

Common Questions About Napa, CA Tides

Show All
What time does the tide turn (slack tide) in Napa, CA today?

Slack tide in Napa, CA is approximately 7:45 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 93% 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 Waning Gibbous (93% 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