Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 6:47 am (0.2 ft)
Next high tide : in 1h 15m at 10:09 pm (5.7 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jan 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:514.611:123.43:160.95:240.68:245:58Waning Crescent1Fri
2Sat10:345.04:121.26:240.38:245:59Waning Crescent2Sat
3Sun12:203.611:19 AM5.35:081.57:180.08:246:00Waning Crescent3Sun
4Mon1:203.812:065.66:051.78:10-0.38:246:01Waning Crescent4Mon
5Tue2:154.112:555.87:041.99:00-0.48:246:02New Moon5Tue
6Wed3:084.21:455.98:031.99:47-0.58:246:03New Moon6Wed
7Thu3:584.42:375.89:021.910:33-0.68:246:04New Moon7Thu
8Fri4:474.53:315.510:011.811:17-0.58:246:04Waxing Crescent8Fri
9Sat5:354.54:285.211:011.68:246:05Waxing Crescent9Sat
10Sun6:234.55:304.712:00-0.412:031.48:246:06Waxing Crescent10Sun
11Mon7:124.56:404.212:43-0.11:091.38:246:07First Quarter11Mon
12Tue8:014.67:583.71:280.12:211.18:246:08First Quarter12Tue
13Wed8:524.69:183.52:160.43:340.88:236:09First Quarter13Wed
14Thu9:414.710:323.43:070.84:440.58:236:10First Quarter14Thu
15Fri10:294.811:393.64:011.15:460.28:236:11Waxing Gibbous15Fri
16Sat11:134.94:541.46:410.08:226:12Waxing Gibbous16Sat
17Sun12:373.711:52 AM5.05:451.77:29-0.18:226:13Waxing Gibbous17Sun
18Mon1:303.912:275.06:331.98:13-0.18:226:15Waxing Gibbous18Mon
19Tue2:174.112:595.07:192.08:52-0.18:216:16Full Moon19Tue
20Wed3:014.21:315.18:032.19:27-0.18:216:17Full Moon20Wed
21Thu3:414.22:045.08:452.09:570.08:206:18Full Moon21Thu
22Fri4:184.22:395.09:252.010:200.08:206:19Full Moon22Fri
23Sat4:514.13:184.810:041.810:400.08:196:20Waning Gibbous23Sat
24Sun5:184.14:004.710:441.711:010.08:196:21Waning Gibbous24Sun
25Mon5:424.14:464.411:261.511:300.18:186:22Waning Gibbous25Mon
26Tue6:064.15:394.012:131.48:176:23Waning Gibbous26Tue
27Wed6:354.36:433.712:060.21:111.38:176:24Third Quarter27Wed
28Thu7:134.48:063.412:490.52:241.18:166:26Third Quarter28Thu
29Fri8:004.69:413.31:400.93:480.98:156:27Third Quarter29Fri
30Sat8:534.811:023.42:371.35:030.68:146:28Third Quarter30Sat
31Sun9:525.13:411.66:070.38:136:29Waning Crescent31Sun
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 2:28 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 21% 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 Waning Crescent (21% 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