Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 6h 23m at 5:39 am (0.4 ft)
Next high tide : 11:46 am (3.8 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:28 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jun 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:243.311:114.45:021.14:200.55:468:25Waxing Gibbous1Sat
2Sun11:343.311:354.75:580.74:590.85:468:26Waxing Gibbous2Sun
3Mon12:373.46:500.35:391.25:468:26Waxing Gibbous3Mon
4Tue1:373.67:400.16:211.55:458:27Waxing Gibbous4Tue
5Wed12:295.42:343.78:29-0.27:071.95:458:28Full Moon5Wed
6Thu1:045.73:313.89:17-0.37:572.25:458:28Full Moon6Thu
7Fri1:465.94:274.010:06-0.48:532.35:458:29Full Moon7Fri
8Sat2:326.05:234.010:55-0.59:522.35:458:29Waning Gibbous8Sat
9Sun3:235.86:174.111:44-0.510:562.35:458:30Waning Gibbous9Sun
10Mon4:185.57:104.212:33-0.55:448:30Waning Gibbous10Mon
11Tue5:215.08:024.312:052.11:24-0.45:448:31Third Quarter11Tue
12Wed6:354.48:534.41:191.92:14-0.25:448:31Third Quarter12Wed
13Thu8:014.09:424.62:381.63:040.05:448:32Third Quarter13Thu
14Fri9:273.710:274.83:541.13:530.25:448:32Third Quarter14Fri
15Sat10:433.511:095.05:030.74:390.65:448:32Waning Crescent15Sat
16Sun11:513.511:475.26:050.35:221.05:458:33Waning Crescent16Sun
17Mon12:523.67:010.06:041.45:458:33Waning Crescent17Mon
18Tue12:205.31:493.77:52-0.26:461.85:458:33Waning Crescent18Tue
19Wed12:495.42:433.98:40-0.27:282.25:458:34New Moon19Wed
20Thu1:165.43:344.09:24-0.28:112.45:458:34New Moon20Thu
21Fri1:435.44:234.110:04-0.28:562.65:458:34New Moon21Fri
22Sat2:155.45:094.110:40-0.19:412.65:468:34New Moon22Sat
23Sun2:515.35:524.111:12-0.110:272.55:468:34Waxing Crescent23Sun
24Mon3:325.16:324.011:39-0.111:152.45:468:34Waxing Crescent24Mon
25Tue4:164.87:114.012:05-0.15:478:35Waxing Crescent25Tue
26Wed5:064.47:484.012:062.212:32-0.15:478:35Waxing Crescent26Wed
27Thu6:014.08:224.01:032.01:060.05:478:35First Quarter27Thu
28Fri7:073.68:544.22:081.71:450.25:488:35First Quarter28Fri
29Sat8:283.39:244.43:181.52:280.55:488:35First Quarter29Sat
30Sun9:563.29:554.84:271.13:140.95:498:35First Quarter30Sun
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 8:42 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 66% 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 First Quarter (66% 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