Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 3:09 am (1.0 ft)
Next high tide : in 4h 14m at 7:10 pm (5.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Oct 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:074.22:034.78:100.78:570.56:035:52Full Moon1Wed
2Thu2:554.02:285.08:390.99:370.46:045:51Waning Gibbous2Thu
3Fri3:483.83:005.29:141.210:230.46:055:49Waning Gibbous3Fri
4Sat4:523.63:405.39:551.511:200.46:065:47Waning Gibbous4Sat
5Sun6:073.54:275.310:451.86:065:46Third Quarter5Sun
6Mon7:273.55:235.112:360.411:47 AM2.16:075:44Third Quarter6Mon
7Tue8:413.66:344.82:000.41:052.26:085:43Third Quarter7Tue
8Wed9:433.88:014.63:140.22:322.16:095:41Third Quarter8Wed
9Thu10:364.09:274.64:150.13:501.86:105:40Waning Crescent9Thu
10Fri11:224.210:384.65:06-0.14:561.36:115:39Waning Crescent10Fri
11Sat12:024.45:50-0.15:550.96:125:37Waning Crescent11Sat
12Sun12:384.66:290.06:490.56:135:36New Moon12Sun
13Mon12:334.51:114.77:050.37:400.36:145:34New Moon13Mon
14Tue1:264.41:404.87:380.68:290.16:155:33New Moon14Tue
15Wed2:184.22:064.98:090.99:180.16:165:31New Moon15Wed
16Thu3:124.02:294.98:401.310:050.16:175:30Waxing Crescent16Thu
17Fri4:083.92:544.99:141.610:540.16:185:29Waxing Crescent17Fri
18Sat5:093.83:254.89:531.911:460.26:195:27Waxing Crescent18Sat
19Sun6:123.74:034.710:412.16:205:26Waxing Crescent19Sun
20Mon7:173.74:514.412:430.311:40 AM2.36:215:24First Quarter20Mon
21Tue8:183.75:534.11:440.312:522.36:225:23First Quarter21Tue
22Wed9:143.87:163.82:420.22:102.26:235:22First Quarter22Wed
23Thu10:023.98:453.73:340.13:201.96:245:20First Quarter23Thu
24Fri10:434.09:553.84:190.14:191.56:255:19Waxing Gibbous24Fri
25Sat11:184.110:523.84:560.15:111.16:265:18Waxing Gibbous25Sat
26Sun11:474.311:433.85:290.25:570.76:275:17Waxing Gibbous26Sun
27Mon12:094.45:570.46:410.56:285:15Waxing Gibbous27Mon
28Tue12:313.912:284.66:240.77:230.36:295:14Full Moon28Tue
29Wed1:203.912:474.96:531.08:050.16:305:13Full Moon29Wed
30Thu2:103.81:135.27:261.38:480.06:315:12Full Moon30Thu
31Fri3:043.81:475.58:041.59:33-0.16:325:11Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

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What time does the tide turn (slack tide) in Port Chicago, CA today?

Slack tide in Port Chicago, CA is approximately 11:09 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 Port Chicago, CA?

Port Chicago, CA is currently in a neap phase. Tonight's moon is 53% 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 minimum.

What datum are Port Chicago, 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 Port Chicago, CA?

Tide predictions for Port Chicago, 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 Port Chicago, CA?

Tide data for Port Chicago, CA is sourced from NOAA Station #9415144. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415144.

What is the moon phase in Port Chicago, CA tonight?

Tonight the moon over Port Chicago, CA is Third Quarter (53% illuminated). This places Port Chicago, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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