Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Napa, CA.
Next low tide : 5:56 pm (3.1 ft)
Next high tide : in 1h 00m at 1:27 pm (5.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Mar 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:465.611:17 AM6.96:022.46:42-0.36:406:02Waxing Gibbous1Sat
2Sun1:105.812:007.06:382.17:11-0.36:396:03Full Moon2Sun
3Mon1:336.012:416.97:121.87:39-0.26:376:04Full Moon3Mon
4Tue1:566.21:236.87:481.48:070.06:366:05Full Moon4Tue
5Wed2:206.52:076.58:261.18:360.46:346:06Full Moon5Wed
6Thu2:466.72:556.19:070.79:060.86:336:07Waning Gibbous6Thu
7Fri3:137.03:505.69:520.49:401.46:316:08Waning Gibbous7Fri
8Sat3:457.14:565.110:430.210:172.06:306:09Waning Gibbous8Sat
9Sun4:227.26:214.711:440.111:032.56:286:10Third Quarter9Sun
10Mon5:107.28:074.612:550.06:276:11Third Quarter10Mon
11Tue6:127.19:414.912:102.92:15-0.16:256:12Third Quarter11Tue
12Wed7:287.010:405.31:493.13:30-0.36:246:13Third Quarter12Wed
13Thu8:467.111:235.73:232.94:33-0.56:226:14Waning Crescent13Thu
14Fri9:577.24:332.55:24-0.76:216:15Waning Crescent14Fri
15Sat12:006.010:58 AM7.35:302.06:09-0.76:196:16Waning Crescent15Sat
16Sun12:346.311:54 AM7.26:201.56:48-0.56:186:17New Moon16Sun
17Mon1:066.612:467.07:071.07:25-0.26:166:18New Moon17Mon
18Tue1:366.81:376.67:510.68:000.36:156:19New Moon18Tue
19Wed2:057.02:276.28:340.48:340.86:136:20New Moon19Wed
20Thu2:337.03:185.89:170.29:081.36:126:20Waxing Crescent20Thu
21Fri3:017.04:135.310:000.19:431.96:106:21Waxing Crescent21Fri
22Sat3:296.95:164.910:450.210:212.46:096:22Waxing Crescent22Sat
23Sun4:026.66:354.711:360.311:092.86:076:23Waxing Crescent23Sun
24Mon4:426.48:164.612:370.46:056:24First Quarter24Mon
25Tue5:356.19:394.812:223.11:490.56:046:25First Quarter25Tue
26Wed6:435.810:285.12:023.13:000.56:026:26First Quarter26Wed
27Thu7:585.811:015.33:192.93:580.36:016:27First Quarter27Thu
28Fri9:055.911:275.54:152.64:440.25:596:28Waxing Gibbous28Fri
29Sat10:036.111:505.75:002.25:220.15:586:29Waxing Gibbous29Sat
30Sun10:556.25:381.85:550.15:566:30Waxing Gibbous30Sun
31Mon12:136.011:43 AM6.26:141.46:250.25:556:31Waxing Gibbous31Mon
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 3:41 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 87% 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 Waxing Gibbous (87% 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