Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 4:46 am (0.8 ft)
Next high tide : in 6h 22m at 8:48 pm (5.2 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:53 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Oct 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:103.83:344.69:441.110:550.67:046:51Waning Gibbous1Tue
2Wed5:003.63:544.810:111.411:320.67:046:49Waning Gibbous2Wed
3Thu5:583.54:234.910:451.77:056:48Waning Gibbous3Thu
4Fri7:043.45:004.912:140.611:27 AM2.07:066:46Waning Gibbous4Fri
5Sat8:163.45:464.81:090.612:202.27:076:45Third Quarter5Sat
6Sun9:253.46:434.62:210.61:252.47:086:43Third Quarter6Sun
7Mon10:253.67:524.43:340.52:422.47:096:42Third Quarter7Mon
8Tue11:153.79:134.34:340.33:592.27:106:40Third Quarter8Tue
9Wed11:573.910:314.45:240.15:041.87:116:39Waning Crescent9Wed
10Thu12:324.06:060.06:011.37:126:37Waning Crescent10Thu
11Fri1:024.26:420.06:530.97:136:36Waning Crescent11Fri
12Sat12:364.61:294.47:160.17:440.57:146:34New Moon12Sat
13Sun1:324.61:544.77:490.38:340.27:156:33New Moon13Sun
14Mon2:274.52:225.08:240.69:26-0.17:166:32New Moon14Mon
15Tue3:234.32:535.39:000.910:19-0.27:176:30Waxing Crescent15Tue
16Wed4:234.23:285.59:411.311:16-0.27:186:29Waxing Crescent16Wed
17Thu5:284.04:105.510:271.67:196:27Waxing Crescent17Thu
18Fri6:373.84:575.312:17-0.111:20 AM1.97:206:26Waxing Crescent18Fri
19Sat7:493.85:544.91:230.012:242.17:206:25First Quarter19Sat
20Sun8:573.97:094.52:320.01:432.27:216:23First Quarter20Sun
21Mon9:594.08:454.23:380.03:082.07:226:22First Quarter21Mon
22Tue10:544.210:114.04:37-0.14:241.77:236:21Waxing Gibbous22Tue
23Wed11:414.311:184.05:27-0.15:291.27:246:19Waxing Gibbous23Wed
24Thu12:224.56:100.06:250.87:266:18Waxing Gibbous24Thu
25Fri12:143.912:574.56:470.17:160.57:276:17Waxing Gibbous25Fri
26Sat1:043.91:274.67:190.48:020.37:286:16Full Moon26Sat
27Sun1:513.812:514.66:470.77:450.26:295:14Full Moon27Sun
28Mon1:373.71:074.77:111.18:260.16:305:13Full Moon28Mon
29Tue2:243.61:204.87:341.49:040.16:315:12Full Moon29Tue
30Wed3:133.61:395.08:011.79:390.26:325:11Waning Gibbous30Wed
31Thu4:053.62:075.18:362.010:130.26:335:10Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

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

Slack tide in Port Chicago, CA is approximately 12:47 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 transitional phase. Tonight's moon is 39% 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 shifting between spring and neap.

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 (39% illuminated). This places Port Chicago, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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