Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 6:29 am (0.2 ft)
Next high tide : in 5h 01m at 10:08 pm (4.8 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jul 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:394.38:264.51:191.61:45-0.15:498:35Third Quarter1Tue
2Wed8:033.89:114.82:351.32:300.35:498:34Third Quarter2Wed
3Thu9:293.59:565.03:520.93:180.75:508:34Third Quarter3Thu
4Fri10:493.510:395.35:040.64:071.15:508:34Waning Crescent4Fri
5Sat12:003.66:080.24:581.55:518:34Waning Crescent5Sat
6Sun1:043.77:070.05:502.05:528:34Waning Crescent6Sun
7Mon12:005.62:024.07:59-0.26:432.35:528:33Waning Crescent7Mon
8Tue12:385.62:564.18:48-0.27:362.55:538:33New Moon8Tue
9Wed1:155.63:464.39:32-0.28:282.65:538:33New Moon9Wed
10Thu1:535.54:324.310:12-0.19:182.65:548:32New Moon10Thu
11Fri2:335.45:144.310:46-0.110:062.55:558:32Waxing Crescent11Fri
12Sat3:145.15:534.211:160.010:532.35:558:32Waxing Crescent12Sat
13Sun3:584.86:294.211:420.011:412.15:568:31Waxing Crescent13Sun
14Mon4:444.57:014.112:040.15:578:31Waxing Crescent14Mon
15Tue5:364.07:324.212:331.912:290.25:578:30Waxing Crescent15Tue
16Wed6:373.67:594.31:321.71:000.55:588:30First Quarter16Wed
17Thu7:553.28:274.42:391.51:380.85:598:29First Quarter17Thu
18Fri9:253.18:584.73:501.22:221.26:008:28First Quarter18Fri
19Sat10:483.19:355.04:580.93:111.76:008:28First Quarter19Sat
20Sun12:003.35:590.64:042.16:018:27Waxing Gibbous20Sun
21Mon1:023.66:530.35:012.46:028:26Waxing Gibbous21Mon
22Tue1:573.87:430.16:002.66:038:26Waxing Gibbous22Tue
23Wed2:464.08:30-0.17:012.66:048:25Full Moon23Wed
24Thu12:476.03:314.19:13-0.28:022.56:048:24Full Moon24Thu
25Fri1:416.04:134.29:54-0.49:012.36:058:23Full Moon25Fri
26Sat2:365.94:524.310:33-0.49:592.06:068:23Waning Gibbous26Sat
27Sun3:315.65:314.411:10-0.410:571.76:078:22Waning Gibbous27Sun
28Mon4:295.26:094.611:46-0.211:591.46:088:21Waning Gibbous28Mon
29Tue5:324.76:504.712:230.06:088:20Waning Gibbous29Tue
30Wed6:434.27:334.91:061.21:030.46:098:19Third Quarter30Wed
31Thu8:033.88:195.02:211.01:480.86:108:18Third Quarter31Thu
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 2:18 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 74% 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 Waxing Gibbous (74% 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