Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 12:13 pm (0.8 ft)
Next high tide : in 5h 40m at 6:16 am (3.7 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Mar 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:335.19:503.412:342.13:330.36:406:00Third Quarter1Thu
2Fri7:505.010:533.71:572.34:400.16:396:01Waning Crescent2Fri
3Sat9:194.911:454.03:292.35:36-0.26:376:02Waning Crescent3Sat
4Sun10:365.04:462.06:23-0.46:366:03Waning Crescent4Sun
5Mon12:304.211:38 AM5.05:501.77:04-0.46:346:04Waning Crescent5Mon
6Tue1:104.412:314.96:461.37:41-0.36:336:05New Moon6Tue
7Wed1:464.51:204.87:371.08:14-0.16:316:06New Moon7Wed
8Thu2:184.62:074.58:250.78:420.16:306:07New Moon8Thu
9Fri2:464.62:554.29:110.69:080.46:286:08Waxing Crescent9Fri
10Sat3:104.73:463.99:560.59:320.86:276:09Waxing Crescent10Sat
11Sun3:314.74:423.610:430.510:001.26:256:10Waxing Crescent11Sun
12Mon3:544.85:473.411:330.510:351.66:246:11Waxing Crescent12Mon
13Tue4:224.87:013.312:320.66:226:12First Quarter13Tue
14Wed4:594.78:173.31:430.66:216:13First Quarter14Wed
15Thu5:474.59:263.512:182.32:550.56:196:14First Quarter15Thu
16Fri6:504.310:243.61:342.43:580.36:186:15First Quarter16Fri
17Sat8:104.211:113.82:562.44:490.26:166:16Waxing Gibbous17Sat
18Sun9:304.211:513.94:052.15:310.06:156:17Waxing Gibbous18Sun
19Mon10:334.35:031.86:060.06:136:18Waxing Gibbous19Mon
20Tue12:254.011:26 AM4.45:521.46:360.06:126:19Waxing Gibbous20Tue
21Wed12:534.112:134.46:371.07:010.16:106:20Full Moon21Wed
22Thu1:154.21:004.47:210.77:250.36:096:21Full Moon22Thu
23Fri1:334.41:484.38:030.47:500.56:076:22Full Moon23Fri
24Sat1:514.72:384.18:460.28:200.86:066:23Full Moon24Sat
25Sun2:155.13:333.99:320.18:551.16:046:24Waning Gibbous25Sun
26Mon2:475.34:363.710:230.19:351.46:036:25Waning Gibbous26Mon
27Tue3:265.45:503.511:240.110:231.86:016:25Waning Gibbous27Tue
28Wed4:115.37:103.412:380.25:596:26Third Quarter28Wed
29Thu5:065.18:273.51:580.25:586:27Third Quarter29Thu
30Fri6:164.79:333.712:422.33:110.05:566:28Third Quarter30Fri
31Sat7:524.410:284.02:182.24:12-0.15:556:29Third Quarter31Sat
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 9:14 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 64% 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 (64% 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