Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 10:10 pm (1.8 ft)
Next high tide : in 38m at 4:45 pm (4.2 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Dec 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:384.310:193.13:000.74:290.57:054:49Waxing Gibbous1Sun
2Mon10:114.511:183.33:421.05:220.37:064:48Waxing Gibbous2Mon
3Tue10:394.74:231.36:100.17:074:48Waxing Gibbous3Tue
4Wed12:113.511:05 AM4.95:031.66:55-0.17:084:48Waxing Gibbous4Wed
5Thu1:023.611:33 AM5.15:451.87:37-0.17:094:48Full Moon5Thu
6Fri1:493.712:065.36:282.08:16-0.27:104:48Full Moon6Fri
7Sat2:353.812:455.47:142.08:54-0.27:114:48Full Moon7Sat
8Sun3:193.91:285.48:032.09:29-0.37:114:48Full Moon8Sun
9Mon4:023.92:155.38:541.910:05-0.37:124:48Waning Gibbous9Mon
10Tue4:454.03:065.19:481.810:42-0.37:134:48Waning Gibbous10Tue
11Wed5:284.04:034.710:461.611:23-0.27:144:48Waning Gibbous11Wed
12Thu6:134.15:074.311:521.47:154:48Third Quarter12Thu
13Fri7:014.36:253.812:080.01:061.27:154:49Third Quarter13Fri
14Sat7:494.57:543.512:590.22:230.97:164:49Third Quarter14Sat
15Sun8:384.79:173.51:530.53:360.57:174:49Third Quarter15Sun
16Mon9:265.010:303.62:500.94:410.17:174:50Waning Crescent16Mon
17Tue10:125.211:343.83:461.25:41-0.27:184:50Waning Crescent17Tue
18Wed10:565.44:411.56:35-0.47:194:50Waning Crescent18Wed
19Thu12:324.011:38 AM5.45:351.77:25-0.57:194:51New Moon19Thu
20Fri1:254.112:185.46:281.98:12-0.57:204:51New Moon20Fri
21Sat2:154.212:575.37:202.08:55-0.47:204:52New Moon21Sat
22Sun3:034.31:375.28:102.09:34-0.37:214:52New Moon22Sun
23Mon3:484.32:184.98:591.910:10-0.27:214:53Waxing Crescent23Mon
24Tue4:304.33:014.69:481.810:42-0.17:224:53Waxing Crescent24Tue
25Wed5:114.23:484.210:381.711:110.07:224:54Waxing Crescent25Wed
26Thu5:504.24:423.811:321.511:410.27:224:54Waxing Crescent26Thu
27Fri6:294.15:483.412:331.47:234:55First Quarter27Fri
28Sat7:074.27:123.112:150.51:411.27:234:56First Quarter28Sat
29Sun7:464.38:373.012:550.82:521.07:234:56First Quarter29Sun
30Mon8:244.49:523.01:431.13:570.77:244:57First Quarter30Mon
31Tue9:024.610:553.32:351.44:560.47:244:58Waxing Gibbous31Tue
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 7:27 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 spring phase. Tonight's moon is 95% 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 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 Waning Gibbous (95% illuminated). This places Port Chicago, 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