Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 1h 32m at 1:40 am (1.1 ft)
Next high tide : 7:39 am (3.4 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 - Mar 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:024.32:364.19:051.19:060.36:396:01New Moon1Tue
2Wed3:174.33:173.89:400.99:240.56:386:02Waxing Crescent2Wed
3Thu3:294.44:033.610:150.89:500.86:366:03Waxing Crescent3Thu
4Fri3:494.65:013.310:530.810:221.16:356:04Waxing Crescent4Fri
5Sat4:184.86:193.111:400.811:031.66:346:05Waxing Crescent5Sat
6Sun4:554.97:523.012:490.86:326:06First Quarter6Sun
7Mon5:424.99:153.22:250.76:316:07First Quarter7Mon
8Tue6:404.810:223.412:582.33:440.56:296:08First Quarter8Tue
9Wed7:504.811:153.72:172.54:450.26:286:09First Quarter9Wed
10Thu9:084.911:583.93:382.35:35-0.16:266:10Waxing Gibbous10Thu
11Fri10:225.04:472.06:18-0.36:256:11Waxing Gibbous11Fri
12Sat12:364.011:26 AM5.15:471.66:57-0.36:236:12Waxing Gibbous12Sat
13Sun1:104.212:245.26:411.17:32-0.36:226:13Full Moon13Sun
14Mon1:414.41:185.17:340.78:05-0.16:206:14Full Moon14Mon
15Tue2:104.62:124.88:260.48:370.16:196:15Full Moon15Tue
16Wed2:404.83:094.59:190.19:100.46:176:16Waning Gibbous16Wed
17Thu3:105.04:094.110:140.09:460.86:166:17Waning Gibbous17Thu
18Fri3:435.15:163.811:130.010:261.36:146:17Waning Gibbous18Fri
19Sat4:215.16:323.612:200.16:136:18Third Quarter19Sat
20Sun5:054.97:513.51:340.26:116:19Third Quarter20Sun
21Mon6:024.69:043.712:182.12:480.26:096:20Third Quarter21Mon
22Tue7:214.310:083.91:412.33:540.06:086:21Third Quarter22Tue
23Wed8:554.211:014.13:082.24:50-0.16:066:22Waning Crescent23Wed
24Thu10:104.211:454.34:202.05:36-0.26:056:23Waning Crescent24Thu
25Fri11:074.25:191.66:16-0.26:036:24Waning Crescent25Fri
26Sat12:244.311:54 AM4.16:091.36:50-0.16:026:25Waning Crescent26Sat
27Sun12:574.412:364.16:541.07:180.16:006:26New Moon27Sun
28Mon1:254.41:163.97:350.77:400.45:596:27New Moon28Mon
29Tue1:464.41:563.88:140.67:580.65:576:28New Moon29Tue
30Wed2:004.52:383.78:490.58:160.95:566:29New Moon30Wed
31Thu2:114.63:223.59:220.48:401.15:546:30Waxing Crescent31Thu
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 4:39 am — 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