Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 1h 15m at 12:59 pm (1.7 ft)
Next high tide : 7:15 pm (4.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Dec 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:394.22:075.18:421.910:13-0.37:054:48Waxing Crescent1Tue
2Wed4:304.12:454.99:292.010:53-0.27:064:48Waxing Crescent2Wed
3Thu5:204.13:284.610:202.011:33-0.17:074:48Waxing Crescent3Thu
4Fri6:094.04:174.211:151.97:084:48Waxing Crescent4Fri
5Sat6:584.05:153.812:130.012:171.87:094:48First Quarter5Sat
6Sun7:464.06:313.412:550.21:251.67:104:48First Quarter6Sun
7Mon8:314.17:593.21:390.32:351.37:114:48First Quarter7Mon
8Tue9:124.29:183.12:240.53:401.07:124:48First Quarter8Tue
9Wed9:494.310:253.23:080.74:370.77:124:48Waxing Gibbous9Wed
10Thu10:204.511:233.43:510.95:290.47:134:48Waxing Gibbous10Thu
11Fri10:474.84:321.26:170.27:144:48Waxing Gibbous11Fri
12Sat12:173.511:14 AM5.05:141.47:020.07:154:48Waxing Gibbous12Sat
13Sun1:083.711:46 AM5.35:571.77:45-0.17:154:49Full Moon13Sun
14Mon1:573.812:235.56:431.98:26-0.27:164:49Full Moon14Mon
15Tue2:453.91:045.67:321.99:07-0.37:174:49Full Moon15Tue
16Wed3:334.01:505.68:231.99:47-0.37:174:49Waning Gibbous16Wed
17Thu4:204.12:405.49:171.910:28-0.37:184:50Waning Gibbous17Thu
18Fri5:074.13:345.110:151.811:11-0.37:194:50Waning Gibbous18Fri
19Sat5:564.24:354.711:191.611:58-0.17:194:51Waning Gibbous19Sat
20Sun6:464.25:474.212:301.47:204:51Third Quarter20Sun
21Mon7:384.47:123.812:490.11:471.27:204:52Third Quarter21Mon
22Tue8:294.68:383.61:440.33:020.87:214:52Third Quarter22Tue
23Wed9:194.89:543.62:390.64:110.47:214:53Waning Crescent23Wed
24Thu10:055.011:013.73:340.95:130.17:224:53Waning Crescent24Thu
25Fri10:485.24:271.26:09-0.27:224:54Waning Crescent25Fri
26Sat12:013.911:28 AM5.35:171.47:00-0.37:224:54Waning Crescent26Sat
27Sun12:564.112:055.36:071.77:47-0.47:234:55New Moon27Sun
28Mon1:474.212:405.36:551.98:31-0.47:234:56New Moon28Mon
29Tue2:354.31:145.27:412.09:11-0.37:234:57New Moon29Tue
30Wed3:214.31:495.18:272.09:47-0.27:234:57New Moon30Wed
31Thu4:044.32:264.99:122.010:22-0.17:244:58Waxing 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 4:07 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 neap phase. Tonight's moon is 47% 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 First Quarter (47% 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