Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 1:49 pm (1.8 ft)
Next high tide : in 4h 48m at 9:19 am (3.2 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jul 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:115.84:474.410:20-0.49:482.24:487:34Waxing Crescent1Mon
2Tue3:055.45:364.411:03-0.310:502.04:497:34Waxing Crescent2Tue
3Wed4:034.96:244.511:45-0.211:541.84:497:34Waxing Crescent3Wed
4Thu5:074.47:104.512:250.04:507:34First Quarter4Thu
5Fri6:203.97:564.61:021.61:060.34:507:34First Quarter5Fri
6Sat7:383.58:394.72:131.31:470.64:517:34First Quarter6Sat
7Sun8:553.39:204.83:210.92:291.04:517:33First Quarter7Sun
8Mon10:053.39:564.94:240.63:131.44:527:33Waxing Gibbous8Mon
9Tue11:093.410:295.05:200.33:571.84:537:33Waxing Gibbous9Tue
10Wed12:073.66:110.14:422.14:537:32Waxing Gibbous10Wed
11Thu1:003.86:580.05:282.44:547:32Waxing Gibbous11Thu
12Fri1:494.07:40-0.16:142.64:557:32Full Moon12Fri
13Sat2:344.18:19-0.17:012.64:557:31Full Moon13Sat
14Sun12:295.43:164.18:54-0.17:472.64:567:31Full Moon14Sun
15Mon1:085.43:534.19:25-0.18:322.44:577:30Full Moon15Mon
16Tue1:515.44:274.19:53-0.19:182.24:577:30Waning Gibbous16Tue
17Wed2:375.24:584.110:18-0.210:052.04:587:29Waning Gibbous17Wed
18Thu3:264.95:284.210:47-0.210:561.84:597:29Waning Gibbous18Thu
19Fri4:194.55:594.411:200.011:551.65:007:28Waning Gibbous19Fri
20Sat5:214.16:344.611:590.25:007:27Third Quarter20Sat
21Sun6:383.77:144.81:061.412:440.65:017:27Third Quarter21Sun
22Mon8:123.58:005.22:271.11:341.05:027:26Third Quarter22Mon
23Tue9:403.58:505.53:460.82:301.55:037:25Waning Crescent23Tue
24Wed10:563.69:425.74:550.53:301.95:047:25Waning Crescent24Wed
25Thu12:023.95:570.24:342.25:047:24Waning Crescent25Thu
26Fri1:004.16:52-0.15:392.35:057:23Waning Crescent26Fri
27Sat1:534.37:43-0.26:432.45:067:22New Moon27Sat
28Sun12:236.02:434.48:30-0.37:432.35:077:21New Moon28Sun
29Mon1:155.83:294.59:12-0.38:412.15:087:20New Moon29Mon
30Tue2:075.64:124.59:51-0.29:361.95:087:20Waxing Crescent30Tue
31Wed2:595.24:534.510:27-0.110:321.75:097:19Waxing Crescent31Wed
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 11:34 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 42% 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 (42% 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