Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Napa, CA.
Next low tide : 11:01 pm (2.7 ft)
Next high tide : in 1h 06m at 5:46 pm (5.8 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Apr 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:546.92:455.88:380.18:351.35:546:31New Moon1Sat
2Sun3:236.84:305.610:150.110:111.76:527:32Waxing Crescent2Sun
3Mon3:536.75:175.310:530.110:482.06:517:33Waxing Crescent3Mon
4Tue4:256.56:105.011:350.211:312.36:497:34Waxing Crescent4Tue
5Wed5:036.37:114.812:220.46:487:35Waxing Crescent5Wed
6Thu5:486.08:204.812:242.51:170.56:467:36First Quarter6Thu
7Fri6:445.79:284.91:352.62:190.66:457:37First Quarter7Fri
8Sat7:505.510:215.12:572.63:230.66:437:38First Quarter8Sat
9Sun9:015.511:025.44:072.44:190.56:427:39First Quarter9Sun
10Mon10:085.611:365.85:012.05:080.56:407:40Waxing Gibbous10Mon
11Tue11:095.85:461.55:500.46:397:41Waxing Gibbous11Tue
12Wed12:086.212:056.06:281.06:300.56:377:42Waxing Gibbous12Wed
13Thu12:406.512:586.17:080.57:090.66:367:43Waxing Gibbous13Thu
14Fri1:136.91:506.27:490.07:490.86:347:44Full Moon14Fri
15Sat1:487.32:436.28:31-0.58:301.16:337:45Full Moon15Sat
16Sun2:257.63:376.29:16-0.89:131.46:317:45Full Moon16Sun
17Mon3:057.74:336.010:04-1.010:001.76:307:46Waning Gibbous17Mon
18Tue3:497.75:325.810:55-1.010:522.06:297:47Waning Gibbous18Tue
19Wed4:387.46:365.711:51-0.911:552.26:277:48Waning Gibbous19Wed
20Thu5:347.07:445.612:52-0.66:267:49Third Quarter20Thu
21Fri6:396.68:515.71:122.31:59-0.36:247:50Third Quarter21Fri
22Sat7:536.19:526.02:392.23:06-0.16:237:51Third Quarter22Sat
23Sun9:115.810:446.33:591.84:090.16:227:52Third Quarter23Sun
24Mon10:265.711:286.65:051.45:040.36:217:53Waning Crescent24Mon
25Tue11:335.76:000.95:520.66:197:54Waning Crescent25Tue
26Wed12:066.812:325.76:470.56:350.86:187:55Waning Crescent26Wed
27Thu12:417.01:255.77:290.17:151.16:177:56New Moon27Thu
28Fri1:127.02:135.78:07-0.17:531.46:157:57New Moon28Fri
29Sat1:427.02:595.68:43-0.38:291.76:147:58New Moon29Sat
30Sun2:117.03:435.59:17-0.39:061.96:137:59New Moon30Sun
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 8:23 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 Waning 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